QBY4-15 - Air pump Vevor - Free user manual and instructions

USER MANUAL QBY4-15 Vevor

Technical Support and E-Warranty Certificate www.vevor.com/support

Air Operated Double Diaphragm Pump Instructions

MODEL: QBK-40L / QBY4-50L / QBY4-25L / QBY4-25LF46 / QBY-15PP / QBK-15P / QBK-15

We continue to be committed to provide you tools with competitive price. "Save Half", "Half Price" or any other similar expressions used by us only represent of savings you might benefit from buying certain tools with us compared to top brands and does not necessarily mean to cover all categories of tools offered are kindly reminded to verify carefully when you are placing an order with us actually saving half in comparison with the top major brands.

VEVOR®

TOUGH TOOLS, HALF PRICE

Air Operated Double Diaphragm Pump

MODEL: QBK-40L/QBY4-50L/QBY4-25L/QBY4-25LF46/QBY-15PP/QBK-15P/QBK-15

NEED HELP? CONTACT US!

Have product questions? Need technical support? Please feel fr contact us:

Technical Support and E-Warranty Certificate www.vevor.com/support

This is the original instruction, please read all manual instruction carefully before operating. VEVOR reserves a clear interpretation user manual. The appearance of the product shall be subject to product you received. Please forgive us that we won't inform you there are any technology or software updates on our product.

PRODUCT PRESENTATION

This series of diaphragm pumps are the latest model at home. They are functioned to take out and suck in various corrosive liquid containing granules, viscous, volatile, inflammabale, explosive or poisonous liquid, porcelain slurry, mashed fruit, flue. The reclamation of residual oil in tanker. temporary reversion of tanker, etc, The performance parameters of this series are close to shat of Germam WLLDENPUMPS and American MARI0-WPUMPS. The components in contact with flow are made of stainless steel. aluminium alloy, castirron and nineerina plastics. While diaphraammay be NBR. viton. neoprene or PTFE.

MAIN APPLICATION

1. The Pump can suck the peanut, pickles, tomato, slurry, red sausage, chocolate, hops, and syrup, etc.
2. The Pump can suck the paint, pigment, glue and adhesive etc.;
3. The pump can suck various glezed slurries of tile, porcelain, brck and chinaware etc.
4. The pump can suck various grinding materials, corrosive agent and ce the oil dirt etc.
5. The pump can suck various toxin and flammable or volatility liquid
6. The pump can suck various wedge water, cement slurry and mortar
7. The pump can suck various strong acid, alkali and corrosive liquid et
8. It can be used as a front-step transmission device of the solid and I separation equipment.

WAY TO INSTALL

Six schematic diagrams of industrial piping and tanks, each showing different flow patterns (no text or labels)

PERFORMANCE CHARACTERISTICS

Air operated double diaphragm pumps not only can exhaust the flow liquid, But also convey some uneasy flowed medium with the merits of self-pumping pump, Diving pump, Shield pump, Slurrypump and impurity pump etc

1. It's unnecessary to pour the drawing water, the suction lift reaches 7m height, The delivery lift reaches 50m lenath and the export pressure >6kgf/cm²;
2. Wide flow and good performance. The diameter allowed to pass the grain reaches 10mm. The damage is very less to the pump while exhausting the slurry and impurity;
3. The delivery life and flow can pass the pneumatic valve open to re the stepless adjustment (The pneumatic pressuse adjustment is between 2-8kgf/cm²):

4. This pump has no rotary parts and no bearing seals. The diaphragm completely separate the exhausted medium anopump running parts, working medium. The conveyed medium can't be leaked outside. Thus it will not cause the environment pollution and human body safety dangerous while exhausting the toxin and flammable or corrosive medim:

5. No electricityIt's safe and reliable while using in the flammable and explore places:

6. It can be soaked in medium;

7. It's convenient to use and reliable to work. Only open or close the valve body while starting or stopping. Even it no medium operation or pausing suddenly for long time because of accident matters, the pump not bedamaged caused by this Once ocer-oadinc. The pump wil automatica stop and possesses the selfortection function. when the loarecovers normally, It also can start automatically;

8.Simple structure and less wearing parts. This pump is simple in structure. Installation and maintenance. The me dium conveyec by the pump will not touch the matched pneumatic valve and coupling lever etc like other kinds pumps, the perform Ance will drop down gradually because of the damages of rotor, gear and vane etc.

1. It can transmit the adhesive (the viscosity is below 10000 centipoise)
2. This pump needn't the oil lubricant. Even if idling, it has any influence the pump. This is a characteristic of this pump

OPERATIONAL PRINCIPLE

Technical diagram of a mechanical device with labeled components and directional arrows indicating flow or movement.

There installs each diaphragm in both aligned working cavities(A)&(B),which can be connected together with acentralcoupling lever.The compression air enters the air distribution valve from the air entrance of the pump,the compression airinto cavity through the air distribution mechanism,push out the diaphragm movementin the cavity.The gas in anothercavity will be drained.Once reaching the stroke terminal,the air distribution mechanicm will automatically draw thecompression air into another working cavity,push out the diaphragm tomove towa rds the opposite direction,so as to le.the both diaphragms continuous reciprocate motion in synchronism.

The compression air enters the air distribut valve from(E)shown the diagram, let the diaphragm piece movetowards theright direction. An: d the suction force in(A) chamber lets the medium flow into from(C) entrance, push out the ball valve(2) to enter(A) chamber, the ball valve(4) will be locked due to the suction force; The medium in(B) chamber will be pressed press out the ball valve(3) to flow out from the exit(D). Meanwhile, let the valve(I) close, prevent backflow. Such movement in circles will let the medium uninterruptedly suck from(C) entrance and drain from(D) exit.

CONNECTION SCHEMATIC DIAGRAM

OUTPUT INPUT

Note: Affected by the stability of gas supply and the environment, the parameters may have certain fluctuations or errors, which is a normal phenomenon.

Model	Cmax(GPM)	Hmax(m)	pressuse(kgf/cm2)	suckedlift(m)	Max grainDia(mm)	Max pressure(kgf/cm2)	MWP(pSI)	Air inletSize	Inlet andoutlet size
	08K-40L	44	69	6.9	5	4.5	7	115	1.5"
08Y4-50L	75	75	8.0	7	8.0	8	113	FNPT 1/4"	2.0"
08Y4-25L	22	73	8.0	7	4.0	8	100	FNPT 1/4"	1.0"
08Y4-25LF46	24	70	8.0	7	4.0	8	100	FNPT 1/4"	1.0"
08Y-15PP	2.5	50	6.0	5	1.0	7	80	FNPT 1/4"	1/2"
08K-15P	3	60	6.9	5	1.0	7	90	FNPT 1/4"	1/2"
08K-15	3	60	6.9	5	1.0	7	90	FNPT 1/4"	1/2"

QBY-10 Structural drawing
01.Outlet pipe	02.Ball sealer
03.Seal seat	04.Diaphragm vane
05.Intermediate	06.Connecting components
07.Copperroads	08.Pump body
09.Inlet pipe	10.Valve pluy
12.Admilion piece	13.Air distribution valve

Technical mechanical drawing with numbered components and cross-sectional views

E A C H1 H2 NPT/Rc

FLANG CONNECTION TYPE

ΦD3 A ΦD2 n-φd A D

H H3 B D

Technical schematic diagram of a mechanical device with numbered components and cross-sectional views

QBY-50~100 Structural drawing
01. Admi Ion piece	02. Air distribution valve
03. Air distribution valve	04.Bail sealor
05. Seal seal	06. Diaphragm vane
07. Connecting components	08. Copper roads
09. Intermediate	10. Inft pipe
11. Air outlet	12. Outlet pipe

Model	A	B	D5	D6	C	H	H1	H2	DHI	DN2	N-D1	N-D2	D3	D4	E	N-d4	Outside diameter or ink	Materials
OBY-10 (ZL104) (ICR18N9TI) (pp)		53	/	190	235	35	220	3/8"Threaded	/	/	/	/	/	12	/	8	(HT200)
OBY-15	135	53	/	190	235	35	220	1/2"Threaded	/	/	/	/	/	12	/	8
OBY-25	255	150	100	380	530	70		1"Threaded	4-Φ11	4-Φ11	75	75	55	4-Φ10	10	10
OBY-40	255	150	130	120	380	530	70		11/2"Threaded	4-Φ13.5	4-Φ13.5	100	90	55	4-Φ10	10
OBY-25	220	160	100	370	460	50	410	1"Threaded	4-Φ11	4-Φ11	75	75	80	4-Φ12	10
OBY-40	220	160	130	120	370	460		410	11/2"Threaded	11/4"Threaded	4-Φ13.5	100	90		4-Φ12	10
OBY-50	340	215	140	140	550	715	95		2"Range	4-Φ13.5	4-Φ13.5	110	110	145	4-Φ17.5	12
OBY-65	340	215	160	140	550	715	95		21⁄2"Range	4-Φ13.5	4-Φ13.5	130	130	145	4-Φ17.5	12
OBY-80	360	260	190	190	580	950	100		3"Range	4-Φ17.5	4-Φ17.5	150	150	130	4-Φ17.5	12
OBY-100	360	260	210	190	580	950	100		4"Range	3"Range	4-Φ17.5	4-Φ17.5	170	170	130	4-Φ17.5	12

Note: QBY-10 and 15 cast iron/aluminum/stainless steel/plastic material import and export are threaded connection, not blue. QBY-25 and 40 stainless steel/plastic material import and export are threaded connection, not blue, cast iron /aluminum alloy and export are flanged, threaded connection dual-use. QBY-50/65/80/100 are flanged, no threaded. (Please refer to actual sample product catalogpictures)

STRUCTURE DRAWING AND PARTS LIST

Exploded view diagram of a mechanical pump assembly with numbered parts for identification

No.	Name	Qty	Material
1	Inlet pipe	1	Stainless steel, cast iron, aluminium alloy, plastic, inner lining FEP
2	Outlet pipe	1	Stainless steel, cast iron, aluminium alloy, plastic, inner lining FEP
3	Pump body	2	Stainless steel, cast iron, aluminium alloy, plastic, inner lining FEP
4	Pump chamber	2	Aluminium alloy, cast iron
5	Intermediate	1	Aluminium alloy
6	Diaphragm vane	2	PTFE
7	Diaphragm vane	2	Acrylonitrile butadiene rubber, polychloroprene
8	ntermediate sealgasket	2	Acrylonitrile butadiene rubber
9	Driving shaft housing	2	Plastic
10	Connecting rod shaft housing	2	Plastic
11	Piston bush	2	Plastic
12	Piston	2	Plastic
13	Slipper block	1	Aluminium alloy
14	Slipper block	1	Chromium-plated steel
15	Sealing slip ring	1	Plastic
16	Driving slipper block	1	Plastic
17	Cover plate	1	Aluminium alloy
18	Cover plate gasket	1	Rubber
19	Muffler	1	Plastic
20	Seal seat	4	Rubber
21	Seal seat	4	PTFE
22	Clamping bar	4	Stainless steel, carbon steel
23	Connecting rod	1	Stainless steel
24	Compression spring	1	Copper
25	Driving shaft	1	Stainless steel
26	Seal ring of driving shaft	2	Rubber
27	Y-type O-ring	4	Rubber
28	O-ring	1	Rubber
29	Butterfly-type O-ring	1	Rubber
30	Inlet nozzle	1	Copper
31	Ball sealer	4	Rubber
32	Ball sealer	4	Stainless steel, ceramic, PTFE

MATTERS NEED ATTENTION

1. If the pump vibration is very slight, there is generally no need install the foundation bolts.
   2.1f the compressed air is mixed with dirty things, normal starting the pump will be influenced. It is suggested that the users should additionally install the pneumatic triplex parts.
2. When pumping media that will easily freeze or deposit, please install a valve at the inlet of the pump. If the pump is to be stopped, please firstly close the valve, and then run the pump for several minutes to empty the media inside the pump and clean accumulated liquid inside the pump in time, so as to avoid any difficulties in starting the pump next time.
3. When replacing the diaphragm, please clean the connecting rod the inner cavity and the copper bush of the pump. And avoid damaging the white PTFE seal ring. Make the reassembly as original, and the pump can be used.

Malfunction forms	Causes	Troubleshooting
No water comes out from the pump or the flow is insufficient.	1、The air pressure is insufficient.2、The flow channel of the pump cavity is blocked3、The valve is not opened	1、Add the air pressure 2、Open the pump cavity for cleaning 3、Open the valve
The pump stops its operation	1、The air distribution valve is damaged2、The diaphragm is damaged3、The muffler is blocked4、Air leakage occurs in the conn-eciting rod seal	1、Repair or replace the air distribution valve2、Replace the diaphragm3、Clean the muffler.4、Replace the connecting rod seal
The lift is too low	1、The suction valve is damaged2、The flow is too high3、The air pressure is too low	1、Shotten the pipe and reduce elbows2、Turn down the drain valve.3、Add the air pressure
The noise is too low	1、The muffler is broken	1、Add the air pressure.

Made In China

VEVOR®

TOUGH TOOLS, HALF PRICE

Technical Support and E-Warranty Certificate

www.vevor.com/support

VEVOR®

TOUGH TOOLS, HALF PRICE

We continue to be committed to provide you tools with competitive price. "Save Half", "Half Price" or any other similar expressions used by us only represent estimate of savings you might benefit from buying certain tools with us compared top brands and does not necessarily mean to cover all categories of tools offered are kindly reminded to verify carefully when you are placing an order with us actually saving half in comparison with the top major brands.

VEVOR®

TOUGH TOOLS, HALF PRICE

Air Operated Double

Diaphragm Pump

MODÈLE: QBK-40L/QBY4-50L/QBY4-25L/QBY4-25LF46 /

QBY-15PP/QBK-15P/QBK-15

NEED HELP? CONTACT US!

Have product questions? Need technical support? Please feel fr contact us:

Technical Support and E-Warranty Certificate

www.vevor.com/support

This is the original instruction, please read all manual instruction carefully before operating. VEVOR reserves a clear interpretation user manual. The appearance of the product shall be subject to product you received. Please forgive us that we won't inform you there are any technology or software updates on our product.

PRODUCT PRESENTATION

Six schematic diagrams of industrial piping and tanks, each showing different flow patterns (no text or labels)

PERFORMANCE CHARACTERISTICS

Technical diagram of a mechanical device with labeled components A through E and directional arrows indicating flow or movement.

Note: Affected by the stability of gas supply and the environment, the parameters may have certain fluctuations or errors, which is a normal phenomenon.

Model	Cmax(GPM)	Hmax(m)	pressuse(kgf/cm2)	suckedlift(m)	MaxgainDia(kgf/cm2)	Max pressure(pSI)	MWP	Pump
	(6PM)	(m)	(kgf/cm2)	(m)	(mm)
AIR Inlet outlet size							1.5"
OBK-40L	44	69	6.9	5	4.5	7	115	1.5"
OBY4-50L	75	75	8.0	7	8.0	8	113	2.0"
OBY4-25L	22	73	8.0	7	4.0	8	100	1.0"
OBY4-25L	24	70	8.0	7	4.0	8	100	1.0"
OBY-15PP	2.5	50	6.0	5	1.0	7	80	1/2"
OBY-15PP	2.5	50	6.0	5	1.0	7	80	1/2"
OBY-15P	2.5	50	6.0	5	1.0	7	80	1/2"
OBY-15P	3	60	6.9	5	1.0	7	90	1/2"
OBY-15P	3	60	6.9	5	1.0	7	90	1/2"
OBY-15	3	60	6.9	5	1.0	7	90	1/2"

QBK INSTALLATION SIZE CHART

QBY-10Structural drawing
01. Outlet pipe	02. Ball sealer
03. Seal seat	04. Diaphragm vane
05. Intermediate	06. Connecting components
07. Copperroads	08. Pump body
09. Inlet pipe	10. Valve play
12. Admi Ion piece	13. Air distribution valve

1 2 3 4 5 6 7 8 9 10 11 12

H1 C A E H2 NP/RC

FLANGE CONNECTION TYPE

Technical schematic diagram of a mechanical device with numbered components and cross-sectional views

GBY-50~100 Structural drawing
01. Admi Ion piece	02. Air distribution valve
03. Air distribution valve	04.Bail sealar
05. Seal seal	06. Diaphragm vane
07. Connecting components	08. Copper roads
09. Intermediate	10. Inft pipe
11. Air outlet	12. Outlet pipe

Model	A	B	D5	D6	C	H	H1	H2	DHI	DN2	N-D1	N-D2	D3	D4	E	N-d4	Outside diameter or ink	Materials
OBY-10 (ZL104) (ICR18N9TI) (pp)		53	/	190	235	35	220	3/8"Threaded	/	/	/	/	/	12	/	8	(HT200)
OBY-15	135	53	/	190	235	35	220	1/2"Threaded	/	/	/	/	/	12	/	8
OBY-25	255	150	100	380	530	70		1"Threaded	4-Φ11	4-Φ11	75	75	55	4-Φ10	10	10
OBY-40	255	150	130	120	380	530	70		11/2"Threaded	4-Φ13.5	4-Φ13.5	100	90	55	4-Φ10	10
OBY-25	220	160	100	370	460	50	410	1"Threaded	4-Φ11	4-Φ11	75	75	80	4-Φ12	10
OBY-40	220	160	130	120	370	460		410	11/2"Threaded	11/4"Threaded	4-Φ13.5	100	90		4-Φ12	10
OBY-50	340	215	140	140	550	715	95		2"Range	4-Φ13.5	4-Φ13.5	110	110	145	4-Φ17.5	12
OBY-65	340	215	160	140	550	715	95		21⁄2"Range	4-Φ13.5	4-Φ13.5	130	130	145	4-Φ17.5	12
OBY-80	360	260	190	190	580	950	100		3"Range	4-Φ17.5	4-Φ17.5	150	150	130	4-Φ17.5	12
OBY-100	360	260	210	190	580	950	100		4"Range	3"Range	4-Φ17.5	4-Φ17.5	170	170	130	4-Φ17.5	12

STRUCTURE DRAWING AND PARTS LIST

Exploded view diagram of a mechanical pump assembly with numbered parts for identification

No.	Name	Qty	Material
1	Inlet pipe	1	Stainless steel, cast iron, aluminium alloy, plastic, inner lining FEP
2	Outlet pipe	1	Stainless steel, cast iron, aluminium alloy, plastic, inner lining FEP
3	Pump body	2	Stainless steel, cast iron, aluminium alloy, plastic, inner lining FEP
4	Pump chamber	2	Aluminium alloy, cast iron
5	Intermediate	1	Aluminium alloy
6	Diaphragm vane	2	PTFE
7	Diaphragm vane	2	Acrylonitrile butadiene rubber, polychloroprene
8	ntermediate sealgasket	2	Acrylonitrile butadiene rubber
9	Driving shaft housing	2	Plastic
10	Connecting rod shaft housing	2	Plastic
11	Piston bush	2	Plastic
12	Piston	2	Plastic
13	Slipper block	1	Aluminium alloy
14	Slipper block	1	Chromium-plated steel
15	Sealing slip ring	1	Plastic
16	Driving slipper block	1	Plastic
17	Cover plate	1	Aluminium alloy
18	Cover plate gasket	1	Rubber
19	Muffler	1	Plastic
20	Seal seat	4	Rubber
21	Seal seat	4	PTFE
22	Clamping bar	4	Stainless steel, carbon steel
23	Connecting rod	1	Stainless steel
24	Compression spring	1	Copper
25	Driving shaft	1	Stainless steel
26	Seal ring of driving shaft	2	Rubber
27	Y-type O-ring	4	Rubber
28	O-ring	1	Rubber
29	Butterfly-type O-ring	1	Rubber
30	Inlet nozzle	1	Copper
31	Ball sealer	4	Rubber
32	Ball sealer	4	Stainless steel, ceramic, PTFE

MATTERS NEED ATTENTION

Malfunction forms	Causes	Troubleshooting
No water comes out from the pump or the flow is insufficient.	1、The air pressure is insufficient.2、The flow channel of the pump cavity is blocked3、The valve is not opened	1、Add the air pressure 2、Open the pump cavity for cleaning 3、Open the valve
The pump stops its operation	1、The air distribution valve is damaged2、The diaphragm is damaged3、The muffler is blocked4、Air leakage occurs in the conn-eciting rod seal	1、Repair or replace the air distribution valve2、Replace the diaphragm3、Clean the muffler.4、Replace the connecting rod seal
The lift is too low	1、The suction valve is damaged2、The flow is too high3、The air pressure is too low	1、Shotten the pipe and reduce elbows2、Turn down the drain valve.3、Add the air pressure
The noise is too low	1、The muffler is broken	1、Add the air pressure.

Fabriqué en Chine

VEVOR®

TOUGH TOOLS, HALF PRICE

We continue to be committed to provide you tools with competitive price. "Save Half", "Half Price" or any other similar expressions used by us only represent of savings you might benefit from buying certain tools with us compared to top brands and does not necessarily mean to cover all categories of tools offered are kindly reminded to verify carefully when you are placing an order with us actually saving half in comparison with the top major brands.

VEVOR®

TOUGH TOOLS, HALF PRICE

Air Operated Double Diaphragm Pump

MODELL: QBK-40L/QBY4-50L/QBY4-25L/QBY4-25LF46 / QBY-15PP/QBK-15P/QBK-15

NEED HELP? CONTACT US!

Have product questions? Need technical support? Please feel fr contact us:

Technical Support and E-Warranty Certificate www.vevor.com/support

This is the original instruction, please read all manual instruction carefully before operating. VEVOR reserves a clear interpretation user manual. The appearance of the product shall be subject to product you received. Please forgive us that we won't inform you there are any technology or software updates on our product.

PRODUCT PRESENTATION

Six schematic diagrams of industrial piping and tanks, each showing different flow patterns (no text or labels)

PERFORMANCE CHARACTERISTICS

Technical diagram of a mechanical device with labeled components A through E and directional arrows indicating flow or movement.

Note: Affected by the stability of gas supply and the environment, the parameters may have certain fluctuations or errors, which is a normal phenomenon.

Model	Cmax(GPM)	Hmax(m)	pressuse(kgf/cm2)	suckedlift(m)	MaxgainDia(kgf/cm2)	Max pressure(pSI)	MWP	Pump
	(6PM)	(perssuse(m)	(kgf/cm2)	Dia(mm)
AIR Inletoutlet size							1.5"
OBS-40L	44	69	6.9	5	4.5	7	115	1.5"
OBSY4-50L	75	75	8.0	7	8.0	8	113	2.0"
OBSY4-25L	22	73	8.0	7	4.0	8	100	1.0"
OBSY4-25LF46	24	70	8.0	7	4.0	8	100	1.0"
OBSY-15PP	2.5	50	6.0	5	1.0	7	80	1/2"
OBSK-15P	3	60	6.9	5	1.0	7	90	1/2"
OBSK-15	3	60	6.9	5	1.0	7	90	1/2"

QBK INSTALLATION SIZE CHART

QBY-10Structural drawing
01. Outlet pipe	02. Ball sealer
03. Seal seat	04. Diaphragm vane
05. Intermediate	06. Connecting components
07. Copperroads	08. Pump body
09. Inlet pipe	10. Valve play
12. Admi Ion piece	13. Air distribution valve

1 2 3 4 5 6 7 8 9 10 11 12

C A H1 H2 NP/RC

FLANGE CONNECTION TYPE

Technical schematic diagram of a mechanical device with numbered components and cross-sectional views

GBY-50~100 Structural drawing
01. Admi Ion piece	02. Air distribution valve
03. Air distribution valve	04.Bail sealar
05. Seal seal	06. Diaphragm vane
07. Connecting components	08. Copper roads
09. Intermediate	10. Inft pipe
11. Air outlet	12. Outlet pipe

Model	A	B	D5	D6	C	H	H1	H2	DHI	DN2	N-D1	N-D2	D3	D4	E	N-d4	Outside diameter or ink	Materials
OBY-10 (ZL104) (ICR18N9TI) (pp)		53	/	190	235	35	220	3/8"Threaded	/	/	/	/	/	12	/	8	(HT200)
OBY-15	135	53	/	190	235	35	220	1/2"Threaded	/	/	/	/	/	12	/	8
OBY-25	255	150	100	380	530	70		1"Threaded	4-Φ11	4-Φ11	75	75	55	4-Φ10	10	10
OBY-40	255	150	130	120	380	530	70		11/2"Threaded	4-Φ13.5	4-Φ13.5	100	90	55	4-Φ10	10
OBY-25	220	160	100	370	460	50	410	1"Threaded	4-Φ11	4-Φ11	75	75	80	4-Φ12	10
OBY-40	220	160	130	120	370	460		410	11/2"Threaded	11/4"Threaded	4-Φ13.5	100	90		4-Φ12	10
OBY-50	340	215	140	140	550	715	95		2"Range	4-Φ13.5	4-Φ13.5	110	110	145	4-Φ17.5	12
OBY-65	340	215	160	140	550	715	95		21⁄2"Range	4-Φ13.5	4-Φ13.5	130	130	145	4-Φ17.5	12
OBY-80	360	260	190	190	580	950	100		3"Range	4-Φ17.5	4-Φ17.5	150	150	130	4-Φ17.5	12
OBY-100	360	260	210	190	580	950	100		4"Range	3"Range	4-Φ17.5	4-Φ17.5	170	170	130	4-Φ17.5	12

STRUCTURE DRAWING AND PARTS LIST

Exploded view diagram of a mechanical pump assembly with numbered parts for identification

No.	Name	Qty	Material
1	Inlet pipe	1	Stainless steel, cast iron, aluminium alloy, plastic, inner lining FEP
2	Outlet pipe	1	Stainless steel, cast iron, aluminium alloy, plastic, inner lining FEP
3	Pump body	2	Stainless steel, cast iron, aluminium alloy, plastic, inner lining FEP
4	Pump chamber	2	Aluminium alloy, cast iron
5	Intermediate	1	Aluminium alloy
6	Diaphragm vane	2	PTFE
7	Diaphragm vane	2	Acrylonitrile butadiene rubber, polychloroprene
8	ntermediate sealgasket	2	Acrylonitrile butadiene rubber
9	Driving shaft housing	2	Plastic
10	Connecting rod shaft housing	2	Plastic
11	Piston bush	2	Plastic
12	Piston	2	Plastic
13	Slipper block	1	Aluminium alloy
14	Slipper block	1	Chromium-plated steel
15	Sealing slip ring	1	Plastic
16	Driving slipper block	1	Plastic
17	Cover plate	1	Aluminium alloy
18	Cover plate gasket	1	Rubber
19	Muffler	1	Plastic
20	Seal seat	4	Rubber
21	Seal seat	4	PTFE
22	Clamping bar	4	Stainless steel, carbon steel
23	Connecting rod	1	Stainless steel
24	Compression spring	1	Copper
25	Driving shaft	1	Stainless steel
26	Seal ring of driving shaft	2	Rubber
27	Y-type O-ring	4	Rubber
28	O-ring	1	Rubber
29	Butterfly-type O-ring	1	Rubber
30	Inlet nozzle	1	Copper
31	Ball sealer	4	Rubber
32	Ball sealer	4	Stainless steel, ceramic, PTFE

MATTERS NEED ATTENTION

Malfunction forms	Causes	Troubleshooting
No water comes out from the pump or the flow is insufficient.	1、The air pressure is insufficient.2、The flow channel of the pump cavity is blocked3、The valve is not opened	1、Add the air pressure 2、Open the pump cavity for cleaning 3、Open the valve
The pump stops its operation	1、The air distribution valve is damaged2、The diaphragm is damaged3、The muffler is blocked4、Air leakage occurs in the conn-eciting rod seal	1、Repair or replace the air distribution valve2、Replace the diaphragm3、Clean the muffler.4、Replace the connecting rod seal
The lift is too low	1、The suction valve is damaged2、The flow is too high3、The air pressure is too low	1、Shotten the pipe and reduce elbows2、Turn down the drain valve.3、Add the air pressure
The noise is too low	1、The muffler is broken	1、Add the air pressure.

www.vevor.com/support

VEVOR®

TOUGH TOOLS, HALF PRICE

We continue to be committed to provide you tools with competitive price. "Save Half", "Half Price" or any other similar expressions used by us only represent estimate of savings you might benefit from buying certain tools with us compared top brands and does not necessarily mean to cover all categories of tools offered are kindly reminded to verify carefully when you are placing an order with us actually saving half in comparison with the top major brands.

VEVOR®

TOUGH TOOLS, HALF PRICE

Air Operated Double

Diaphragm Pump

MODELLO: QBK-40L/QBY4-50L/QBY4-25L/QBY4-25LF46 /

QBY-15PP/QBK-15P/QBK-15

NEED HELP? CONTACT US!

Have product questions? Need technical support? Please feel fr contact us:

Technical Support and E-Warranty Certificate

www.vevor.com/support

This is the original instruction, please read all manual instruction carefully before operating. VEVOR reserves a clear interpretation user manual. The appearance of the product shall be subject to product you received. Please forgive us that we won't inform you there are any technology or software updates on our product.

PRODUCT PRESENTATION

Six schematic diagrams of industrial piping and tanks, no text or labels present

PERFORMANCE CHARACTERISTICS

Technical diagram of a mechanical device with labeled components A through E and directional arrows indicating flow or movement.

Note: Affected by the stability of gas supply and the environment, the parameters may have certain fluctuations or errors, which is a normal phenomenon.

Model	Cmax(GPM)	Hmax(m)	pressuse(kgf/cm2)	suckedlift(m)	MaxgainDia(kgf/cm2)	Max pressure(pSI)	MWP	Pump
	(6PM)	(m)	(kgf/cm2)	(m)	(mm)
AIR Inlet outlet size							1.5"
OBK-40L	44	69	6.9	5	4.5	7	115	1.5"
OBY4-50L	75	75	8.0	7	8.0	8	113	2.0"
OBY4-25L	22	73	8.0	7	4.0	8	100	1.0"
OBY4-25L	24	70	8.0	7	4.0	8	100	1.0"
OBY-15PP	2.5	50	6.0	5	1.0	7	80	1/2"
OBY-15PP	2.5	50	6.0	5	1.0	7	80	1/2"
OBY-15P	2.5	50	6.0	5	1.0	7	80	1/2"
OBY-15P	3	60	6.9	5	1.0	7	90	1/2"
OBY-15P	3	60	6.9	5	1.0	7	90	1/2"
OBY-15	3	60	6.9	5	1.0	7	90	1/2"

QBK INSTALLATION SIZE CHART

QBY-10Structural drawing
01. Outlet pipe	02. Ball sealer
03. Seal seat	04. Diaphragm vane
05. Intermediate	06. Connecting components
07. Copperroads	08. Pump body
09. Inlet pipe	10. Valve play
12. Admi Ion piece	13. Air distribution valve

1 2 3 4 5 6 7 8 9 10 11 12

H1 C A E H2 NP/RC

FLANGE CONNECTION TYPE

Technical schematic diagram of a mechanical device with numbered components and cross-sectional views

GBY-50~100 Structural drawing
01. Admi Ion piece	02. Air distribution valve
03. Air distribution valve	04.Bail sealar
05. Seal seal	06. Diaphragm vane
07. Connecting components	08. Copper roads
09. Intermediate	10. Inft pipe
11. Air outlet	12. Outlet pipe

Model	A	B	D5	D6	C	H	H1	H2	DHI	DN2	N-D1	N-D2	D3	D4	E	N-d4	Outside diameter or ink	Materials
OBY-10 (ZL104) (ICR18N9TI) (pp)		53	/	190	235	35	220	3/8"Threaded	/	/	/	/	/	12	/	8	(HT200)
OBY-15	135	53	/	190	235	35	220	1/2"Threaded	/	/	/	/	/	12	/	8
OBY-25	255	150	100	380	530	70		1"Threaded	4-Φ11	4-Φ11	75	75	55	4-Φ10	10	10
OBY-40	255	150	130	120	380	530	70		11/2"Threaded	4-Φ13.5	4-Φ13.5	100	90	55	4-Φ10	10
OBY-25	220	160	100	370	460	50	410	1"Threaded	4-Φ11	4-Φ11	75	75	80	4-Φ12	10
OBY-40	220	160	130	120	370	460		410	11/2"Threaded	11/4"Threaded	4-Φ13.5	100	90		4-Φ12	10
OBY-50	340	215	140	140	550	715	95		2"Range	4-Φ13.5	4-Φ13.5	110	110	145	4-Φ17.5	12
OBY-65	340	215	160	140	550	715	95		21⁄2"Range	4-Φ13.5	4-Φ13.5	130	130	145	4-Φ17.5	12
OBY-80	360	260	190	190	580	950	100		3"Range	4-Φ17.5	4-Φ17.5	150	150	130	4-Φ17.5	12
OBY-100	360	260	210	190	580	950	100		4"Range	3"Range	4-Φ17.5	4-Φ17.5	170	170	130	4-Φ17.5	12

STRUCTURE DRAWING AND PARTS LIST

Exploded view diagram of a mechanical pump assembly with numbered parts for identification

No.	Name	Qty	Material
1	Inlet pipe	1	Stainless steel, cast iron, aluminium alloy, plastic, inner lining FEP
2	Outlet pipe	1	Stainless steel, cast iron, aluminium alloy, plastic, inner lining FEP
3	Pump body	2	Stainless steel, cast iron, aluminium alloy, plastic, inner lining FEP
4	Pump chamber	2	Aluminium alloy, cast iron
5	Intermediate	1	Aluminium alloy
6	Diaphragm vane	2	PTFE
7	Diaphragm vane	2	Acrylonitrile butadiene rubber, polychloroprene
8	ntermediate sealgasket	2	Acrylonitrile butadiene rubber
9	Driving shaft housing	2	Plastic
10	Connecting rod shaft housing	2	Plastic
11	Piston bush	2	Plastic
12	Piston	2	Plastic
13	Slipper block	1	Aluminium alloy
14	Slipper block	1	Chromium-plated steel
15	Sealing slip ring	1	Plastic
16	Driving slipper block	1	Plastic
17	Cover plate	1	Aluminium alloy
18	Cover plate gasket	1	Rubber
19	Muffler	1	Plastic
20	Seal seat	4	Rubber
21	Seal seat	4	PTFE
22	Clamping bar	4	Stainless steel, carbon steel
23	Connecting rod	1	Stainless steel
24	Compression spring	1	Copper
25	Driving shaft	1	Stainless steel
26	Seal ring of driving shaft	2	Rubber
27	Y-type O-ring	4	Rubber
28	O-ring	1	Rubber
29	Butterfly-type O-ring	1	Rubber
30	Inlet nozzle	1	Copper
31	Ball sealer	4	Rubber
32	Ball sealer	4	Stainless steel, ceramic, PTFE

MATTERS NEED ATTENTION

Malfunction forms	Causes	Troubleshooting
No water comes out from the pump or the flow is insufficient.	1、The air pressure is insufficient.2、The flow channel of the pump cavity is blocked3、The valve is not opened	1、Add the air pressure 2、Open the pump cavity for cleaning 3、Open the valve
The pump stops its operation	1、The air distribution valve is damaged2、The diaphragm is damaged3、The muffler is blocked4、Air leakage occurs in the conn-eciting rod seal	1、Repair or replace the air distribution valve2、Replace the diaphragm3、Clean the muffler.4、Replace the connecting rod seal
The lift is too low	1、The suction valve is damaged2、The flow is too high3、The air pressure is too low	1、Shotten the pipe and reduce elbows2、Turn down the drain valve.3、Add the air pressure
The noise is too low	1、The muffler is broken	1、Add the air pressure.

Made in China

VEVOR®

TOUGH TOOLS, HALF PRICE

www.vevor.com/support

VEVOR®

TOUGH TOOLS, HALF PRICE

We continue to be committed to provide you tools with competitive price. "Save Half", "Half Price" or any other similar expressions used by us only represent of savings you might benefit from buying certain tools with us compared to top brands and does not necessarily mean to cover all categories of tools offered are kindly reminded to verify carefully when you are placing an order with us actually saving half in comparison with the top major brands.

VEVOR®

TOUGH TOOLS, HALF PRICE

Air Operated Double

Diaphragm Pump

MODELO: QBK-40L/QBY4-50L/QBY4-25L/QBY4-25LF46 /

QBY-15PP/QBK-15P/QBK-15

NEED HELP? CONTACT US!

Have product questions? Need technical support? Please feel fr contact us:

Technical Support and E-Warranty Certificate

www.vevor.com/support

This is the original instruction, please read all manual instruction carefully before operating. VEVOR reserves a clear interpretation user manual. The appearance of the product shall be subject to product you received. Please forgive us that we won't inform you there are any technology or software updates on our product.

PRODUCT PRESENTATION

Six schematic diagrams of industrial piping and tanks, each showing different flow patterns (no text or labels)

PERFORMANCE CHARACTERISTICS

Technical diagram of a mechanical device with labeled components A through E and directional arrows indicating flow or movement.

Note: Affected by the stability of gas supply and the environment, the parameters may have certain fluctuations or errors, which is a normal phenomenon.

Model	Cmax(GPM)	Hmax(m)	pressuse(kgf/cm2)	suckedlift(m)	MaxgainDia(kgf/cm2)	Max pressure(pSI)	MWP	Pump
	(6PM)	(perssuse(m)	(kgf/cm2)	(Dia(mm))	(kgf/cm2)
OBR-40L	44	69	6.9	5	4.5	7	115	1.5"
OBR4-50L	75	75	8.0	7	8.0	8	113	2.0"
OBR4-25L	22	73	8.0	7	4.0	8	100	1.0"
OBRY4-25LF46	24	70	8.0	7	4.0	8	100	1.0"
OBRY-15PP	2.5	50	6.0	5	1.0	7	80	1/2"
OBR-15P	3	60	6.9	5	1.0	7	90	1/2"
OBR-15	3	60	6.9	5	1.0	7	90	1/2"

QBK INSTALLATION SIZE CHART

QBY-10Structural drawing
01. Outlet pipe	02. Ball sealer
03. Seal seat	04. Diaphragm vane
05. Intermediate	06. Connecting components
07. Copperroads	08. Pump body
09. Inlet pipe	10. Valve play
12. Admi Ion piece	13. Air distribution valve

1 2 3 4 5 6 7 8 9 10 11 12

C A H1 H2 NP/RC

FLANGE CONNECTION TYPE

Technical schematic diagram of a mechanical device with numbered components and cross-sectional views

GBY-50~100 Structural drawing
01. Admi Ion piece	02. Air distribution valve
03. Air distribution valve	04.Bail sealar
05. Seal seal	06. Diaphragm vane
07. Connecting components	08. Copper roads
09. Intermediate	10. Inft pipe
11. Air outlet	12. Outlet pipe

Model	A	B	D5	D6	C	H	H1	H2	DHI	DN2	N-D1	N-D2	D3	D4	E	N-d4	Outside diameter or ink	Materials
OBY-10 (ZL104) (ICR18N9TI) (pp)		53	/	190	235	35	220	3/8"Threaded	/	/	/	/	/	12	/	8	(HT200)
OBY-15	135	53	/	190	235	35	220	1/2"Threaded	/	/	/	/	/	12	/	8
OBY-25	255	150	100	380	530	70		1"Threaded	4-Φ11	4-Φ11	75	75	55	4-Φ10	10	10
OBY-40	255	150	130	120	380	530	70		11/2"Threaded	4-Φ13.5	4-Φ13.5	100	90	55	4-Φ10	10
OBY-25	220	160	100	370	460	50	410	1"Threaded	4-Φ11	4-Φ11	75	75	80	4-Φ12	10
OBY-40	220	160	130	120	370	460		410	11/2"Threaded	11/4"Threaded	4-Φ13.5	100	90		4-Φ12	10
OBY-50	340	215	140	140	550	715	95		2"Range	4-Φ13.5	4-Φ13.5	110	110	145	4-Φ17.5	12
OBY-65	340	215	160	140	550	715	95		21⁄2"Range	4-Φ13.5	4-Φ13.5	130	130	145	4-Φ17.5	12
OBY-80	360	260	190	190	580	950	100		3"Range	4-Φ17.5	4-Φ17.5	150	150	130	4-Φ17.5	12
OBY-100	360	260	210	190	580	950	100		4"Range	3"Range	4-Φ17.5	4-Φ17.5	170	170	130	4-Φ17.5	12

STRUCTURE DRAWING AND PARTS LIST

Exploded view diagram of a mechanical pump assembly with numbered parts for identification

No.	Name	Qty	Material
1	Inlet pipe	1	Stainless steel, cast iron, aluminium alloy, plastic, inner lining FEP
2	Outlet pipe	1	Stainless steel, cast iron, aluminium alloy, plastic, inner lining FEP
3	Pump body	2	Stainless steel, cast iron, aluminium alloy, plastic, inner lining FEP
4	Pump chamber	2	Aluminium alloy, cast iron
5	Intermediate	1	Aluminium alloy
6	Diaphragm vane	2	PTFE
7	Diaphragm vane	2	Acrylonitrile butadiene rubber, polychloroprene
8	ntermediate sealgasket	2	Acrylonitrile butadiene rubber
9	Driving shaft housing	2	Plastic
10	Connecting rod shaft housing	2	Plastic
11	Piston bush	2	Plastic
12	Piston	2	Plastic
13	Slipper block	1	Aluminium alloy
14	Slipper block	1	Chromium-plated steel
15	Sealing slip ring	1	Plastic
16	Driving slipper block	1	Plastic
17	Cover plate	1	Aluminium alloy
18	Cover plate gasket	1	Rubber
19	Muffler	1	Plastic
20	Seal seat	4	Rubber
21	Seal seat	4	PTFE
22	Clamping bar	4	Stainless steel, carbon steel
23	Connecting rod	1	Stainless steel
24	Compression spring	1	Copper
25	Driving shaft	1	Stainless steel
26	Seal ring of driving shaft	2	Rubber
27	Y-type O-ring	4	Rubber
28	O-ring	1	Rubber
29	Butterfly-type O-ring	1	Rubber
30	Inlet nozzle	1	Copper
31	Ball sealer	4	Rubber
32	Ball sealer	4	Stainless steel, ceramic, PTFE

MATTERS NEED ATTENTION

Malfunction forms	Causes	Troubleshooting
No water comes out from the pump or the flow is insufficient.	1、The air pressure is insufficient.2、The flow channel of the pump cavity is blocked3、The valve is not opened	1、Add the air pressure 2、Open the pump cavity for cleaning 3、Open the valve
The pump stops its operation	1、The air distribution valve is damaged2、The diaphragm is damaged3、The muffler is blocked4、Air leakage occurs in the conn-eciting rod seal	1、Repair or replace the air distribution valve2、Replace the diaphragm3、Clean the muffler.4、Replace the connecting rod seal
The lift is too low	1、The suction valve is damaged2、The flow is too high3、The air pressure is too low	1、Shotten the pipe and reduce elbows2、Turn down the drain valve.3、Add the air pressure
The noise is too low	1、The muffler is broken	1、Add the air pressure.

Hecho en china

VEVOR®

TOUGH TOOLS, HALF PRICE

www.vevor.com/support

VEVOR®

TOUGH TOOLS, HALF PRICE

We continue to be committed to provide you tools with competitive price. "Save Half", "Half Price" or any other similar expressions used by us only represent estimate of savings you might benefit from buying certain tools with us compared top brands and does not necessarily mean to cover all categories of tools offered are kindly reminded to verify carefully when you are placing an order with us actually saving half in comparison with the top major brands.

VEVOR®

TOUGH TOOLS, HALF PRICE

Air Operated Double Diaphragm Pump

MODEL: QBK-40L/QBY4-50L/QBY4-25L/QBY4-25LF46 / QBY-15PP/QBK-15P/QBK-15

NEED HELP? CONTACT US!

Have product questions? Need technical support? Please feel fr contact us:

Technical Support and E-Warranty Certificate www.vevor.com/support

This is the original instruction, please read all manual instruction carefully before operating. VEVOR reserves a clear interpretation user manual. The appearance of the product shall be subject to product you received. Please forgive us that we won't inform you there are any technology or software updates on our product.

PRODUCT PRESENTATION

Six schematic diagrams of industrial piping and tanks, no text or labels present

PERFORMANCE CHARACTERISTICS

Technical diagram of a mechanical device with labeled components A through E and directional arrows indicating flow or movement.

Note: Affected by the stability of gas supply and the environment, the parameters may have certain fluctuations or errors, which is a normal phenomenon.

Model	Cmax(GPM)	Hmax(m)	pressuse(kgf/cm2)	suckedlift(m)	MaxgainDia(kgf/cm2)	Max pressure(pSI)	MWP	Pump
	(6PM)	(perssuse(m)	(kgf/cm2)	(Dia(mm))	(kgf/cm2)
OBR-40L	44	69	6.9	5	4.5	7	115	1.5"
OBR4-50L	75	75	8.0	7	8.0	8	113	2.0"
OBR4-25L	22	73	8.0	7	4.0	8	100	1.0"
OBRY4-25LF46	24	70	8.0	7	4.0	8	100	1.0"
OBRY-15PP	2.5	50	6.0	5	1.0	7	80	1/2"
OBR-15P	3	60	6.9	5	1.0	7	90	1/2"
OBR-15	3	60	6.9	5	1.0	7	90	1/2"

QBK INSTALLATION SIZE CHART

QBY-10Structural drawing
01. Outlet pipe	02. Ball sealer
03. Seal seat	04. Diaphragm vane
05. Intermediate	06. Connecting components
07. Copperroads	08. Pump body
09. Inlet pipe	10. Valve play
12. Admi Ion piece	13. Air distribution valve

1 2 3 4 5 6 7 8 9 10 11 12

H1 C A E H2 NP/RC

FLANGE CONNECTION TYPE

Technical schematic diagram of a mechanical device with numbered components and cross-sectional views

GBY-50~100 Structural drawing
01. Admi Ion piece	02. Air distribution valve
03. Air distribution valve	04.Bail sealar
05. Seal seal	06. Diaphragm vane
07. Connecting components	08. Copper roads
09. Intermediate	10. Inft pipe
11. Air outlet	12. Outlet pipe

Model	A	B	D5	D6	C	H	H1	H2	DHI	DN2	N-D1	N-D2	D3	D4	E	N-d4	Outside diameter or ink	Materials
OBY-10 (ZL104) (ICR18N9TI) (pp)		53	/	190	235	35	220	3/8"Threaded	/	/	/	/	/	12	/	8	(HT200)
OBY-15	135	53	/	190	235	35	220	1/2"Threaded	/	/	/	/	/	12	/	8
OBY-25	255	150	100	380	530	70		1"Threaded	4-Φ11	4-Φ11	75	75	55	4-Φ10	10	10
OBY-40	255	150	130	120	380	530	70		11/2"Threaded	4-Φ13.5	4-Φ13.5	100	90	55	4-Φ10	10
OBY-25	220	160	100	370	460	50	410	1"Threaded	4-Φ11	4-Φ11	75	75	80	4-Φ12	10
OBY-40	220	160	130	120	370	460		410	11/2"Threaded	11/4"Threaded	4-Φ13.5	100	90		4-Φ12	10
OBY-50	340	215	140	140	550	715	95		2"Range	4-Φ13.5	4-Φ13.5	110	110	145	4-Φ17.5	12
OBY-65	340	215	160	140	550	715	95		21⁄2"Range	4-Φ13.5	4-Φ13.5	130	130	145	4-Φ17.5	12
OBY-80	360	260	190	190	580	950	100		3"Range	4-Φ17.5	4-Φ17.5	150	150	130	4-Φ17.5	12
OBY-100	360	260	210	190	580	950	100		4"Range	3"Range	4-Φ17.5	4-Φ17.5	170	170	130	4-Φ17.5	12

STRUCTURE DRAWING AND PARTS LIST

Exploded view diagram of a mechanical pump assembly with numbered parts for identification

No.	Name	Qty	Material
1	Inlet pipe	1	Stainless steel, cast iron, aluminium alloy, plastic, inner lining FEP
2	Outlet pipe	1	Stainless steel, cast iron, aluminium alloy, plastic, inner lining FEP
3	Pump body	2	Stainless steel, cast iron, aluminium alloy, plastic, inner lining FEP
4	Pump chamber	2	Aluminium alloy, cast iron
5	Intermediate	1	Aluminium alloy
6	Diaphragm vane	2	PTFE
7	Diaphragm vane	2	Acrylonitrile butadiene rubber, polychloroprene
8	ntermediate sealgasket	2	Acrylonitrile butadiene rubber
9	Driving shaft housing	2	Plastic
10	Connecting rod shaft housing	2	Plastic
11	Piston bush	2	Plastic
12	Piston	2	Plastic
13	Slipper block	1	Aluminium alloy
14	Slipper block	1	Chromium-plated steel
15	Sealing slip ring	1	Plastic
16	Driving slipper block	1	Plastic
17	Cover plate	1	Aluminium alloy
18	Cover plate gasket	1	Rubber
19	Muffler	1	Plastic
20	Seal seat	4	Rubber
21	Seal seat	4	PTFE
22	Clamping bar	4	Stainless steel, carbon steel
23	Connecting rod	1	Stainless steel
24	Compression spring	1	Copper
25	Driving shaft	1	Stainless steel
26	Seal ring of driving shaft	2	Rubber
27	Y-type O-ring	4	Rubber
28	O-ring	1	Rubber
29	Butterfly-type O-ring	1	Rubber
30	Inlet nozzle	1	Copper
31	Ball sealer	4	Rubber
32	Ball sealer	4	Stainless steel, ceramic, PTFE

MATTERS NEED ATTENTION

Malfunction forms	Causes	Troubleshooting
No water comes out from the pump or the flow is insufficient.	1、The air pressure is insufficient.2、The flow channel of the pump cavity is blocked3、The valve is not opened	1、Add the air pressure 2、Open the pump cavity for cleaning 3、Open the valve
The pump stops its operation	1、The air distribution valve is damaged2、The diaphragm is damaged3、The muffler is blocked4、Air leakage occurs in the conn-eciting rod seal	1、Repair or replace the air distribution valve2、Replace the diaphragm3、Clean the muffler.4、Replace the connecting rod seal
The lift is too low	1、The suction valve is damaged2、The flow is too high3、The air pressure is too low	1、Shotten the pipe and reduce elbows2、Turn down the drain valve.3、Add the air pressure
The noise is too low	1、The muffler is broken	1、Add the air pressure.

www.vevor.com/support

VEVOR®

TOUGH TOOLS, HALF PRICE

Technisch Ondersteuning en e-garantiecertificaat www.vevor.com/support

We continue to be committed to provide you tools with competitive price. "Save Half", "Half Price" or any other similar expressions used by us only represent of savings you might benefit from buying certain tools with us compared to top brands and does not necessarily mean to cover all categories of tools offered are kindly reminded to verify carefully when you are placing an order with us actually saving half in comparison with the top major brands.

VEVOR®

TOUGH TOOLS, HALF PRICE

Air Operated Double Diaphragm Pump

MODEL: QBK-40L/QBY4-50L/QBY4-25L/QBY4-25LF46 / QBY-15PP/QBK-15P/QBK-15

NEED HELP? CONTACT US!

Have product questions? Need technical support? Please feel fr contact us:

Technical Support and E-Warranty Certificate www.vevor.com/support

This is the original instruction, please read all manual instruction carefully before operating. VEVOR reserves a clear interpretation user manual. The appearance of the product shall be subject to product you received. Please forgive us that we won't inform you there are any technology or software updates on our product.

PRODUCT PRESENTATION

Six schematic diagrams of industrial piping and tanks, no text or labels present

PERFORMANCE CHARACTERISTICS

Technical diagram of a mechanical device with labeled components A through E and directional arrows indicating flow or movement.

Note: Affected by the stability of gas supply and the environment, the parameters may have certain fluctuations or errors, which is a normal phenomenon.

Model	Cmax(GPM)	Hmax(m)	pressuse(kgf/cm2)	suckedlift(m)	MaxgainDia(kgf/cm2)	Max pressure(pSI)	MWP	Pump
	(6PM)	(perssuse(m)	(kgf/cm2)	(Dia(mm))	(kgf/cm2)
OBR-40L	44	69	6.9	5	4.5	7	115	1.5"
OBR4-50L	75	75	8.0	7	8.0	8	113	2.0"
OBR4-25L	22	73	8.0	7	4.0	8	100	1.0"
OBRY4-25LF46	24	70	8.0	7	4.0	8	100	1.0"
OBRY-15PP	2.5	50	6.0	5	1.0	7	80	1/2"
OBR-15P	3	60	6.9	5	1.0	7	90	1/2"
OBR-15	3	60	6.9	5	1.0	7	90	1/2"

QBK INSTALLATION SIZE CHART

QBY-10Structural drawing
01. Outlet pipe	02. Ball sealer
03. Seal seat	04. Diaphragm vane
05. Intermediate	06. Connecting components
07. Copperroads	08. Pump body
09. Inlet pipe	10. Valve play
12. Admi Ion piece	13. Air distribution valve

1 2 3 4 5 6 7 8 9 10 11 12

C A H1 H2 NP/RC

FLANGE CONNECTION TYPE

Technical schematic diagram of a mechanical device with numbered components and cross-sectional views

GBY-50~100 Structural drawing
01. Admi Ion piece	02. Air distribution valve
03. Air distribution valve	04.Bail sealar
05. Seal seal	06. Diaphragm vane
07. Connecting components	08. Copper roads
09. Intermediate	10. Inft pipe
11. Air outlet	12. Outlet pipe

Model	A	B	D5	D6	C	H	H1	H2	DHI	DN2	N-D1	N-D2	D3	D4	E	N-d4	Outside diameter or ink	Materials
OBY-10 (ZL104) (ICR18N9TI) (pp)		53	/	190	235	35	220	3/8"Threaded	/	/	/	/	/	12	/	8	(HT200)
OBY-15	135	53	/	190	235	35	220	1/2"Threaded	/	/	/	/	/	12	/	8
OBY-25	255	150	100	380	530	70		1"Threaded	4-Φ11	4-Φ11	75	75	55	4-Φ10	10	10
OBY-40	255	150	130	120	380	530	70		11/2"Threaded	4-Φ13.5	4-Φ13.5	100	90	55	4-Φ10	10
OBY-25	220	160	100	370	460	50	410	1"Threaded	4-Φ11	4-Φ11	75	75	80	4-Φ12	10
OBY-40	220	160	130	120	370	460		410	11/2"Threaded	11/4"Threaded	4-Φ13.5	100	90		4-Φ12	10
OBY-50	340	215	140	140	550	715	95		2"Range	4-Φ13.5	4-Φ13.5	110	110	145	4-Φ17.5	12
OBY-65	340	215	160	140	550	715	95		21⁄2"Range	4-Φ13.5	4-Φ13.5	130	130	145	4-Φ17.5	12
OBY-80	360	260	190	190	580	950	100		3"Range	4-Φ17.5	4-Φ17.5	150	150	130	4-Φ17.5	12
OBY-100	360	260	210	190	580	950	100		4"Range	3"Range	4-Φ17.5	4-Φ17.5	170	170	130	4-Φ17.5	12

STRUCTURE DRAWING AND PARTS LIST

Exploded view diagram of a mechanical pump assembly with numbered parts for identification

No.	Name	Qty	Material
1	Inlet pipe	1	Stainless steel, cast iron, aluminium alloy, plastic, inner lining FEP
2	Outlet pipe	1	Stainless steel, cast iron, aluminium alloy, plastic, inner lining FEP
3	Pump body	2	Stainless steel, cast iron, aluminium alloy, plastic, inner lining FEP
4	Pump chamber	2	Aluminium alloy, cast iron
5	Intermediate	1	Aluminium alloy
6	Diaphragm vane	2	PTFE
7	Diaphragm vane	2	Acrylonitrile butadiene rubber, polychloroprene
8	ntermediate sealgasket	2	Acrylonitrile butadiene rubber
9	Driving shaft housing	2	Plastic
10	Connecting rod shaft housing	2	Plastic
11	Piston bush	2	Plastic
12	Piston	2	Plastic
13	Slipper block	1	Aluminium alloy
14	Slipper block	1	Chromium-plated steel
15	Sealing slip ring	1	Plastic
16	Driving slipper block	1	Plastic
17	Cover plate	1	Aluminium alloy
18	Cover plate gasket	1	Rubber
19	Muffler	1	Plastic
20	Seal seat	4	Rubber
21	Seal seat	4	PTFE
22	Clamping bar	4	Stainless steel, carbon steel
23	Connecting rod	1	Stainless steel
24	Compression spring	1	Copper
25	Driving shaft	1	Stainless steel
26	Seal ring of driving shaft	2	Rubber
27	Y-type O-ring	4	Rubber
28	O-ring	1	Rubber
29	Butterfly-type O-ring	1	Rubber
30	Inlet nozzle	1	Copper
31	Ball sealer	4	Rubber
32	Ball sealer	4	Stainless steel, ceramic, PTFE

MATTERS NEED ATTENTION

Malfunction forms	Causes	Troubleshooting
No water comes out from the pump or the flow is insufficient.	1、The air pressure is insufficient.2、The flow channel of the pump cavity is blocked3、The valve is not opened	1、Add the air pressure 2、Open the pump cavity for cleaning 3、Open the valve
The pump stops its operation	1、The air distribution valve is damaged2、The diaphragm is damaged3、The muffler is blocked4、Air leakage occurs in the conn-eciting rod seal	1、Repair or replace the air distribution valve2、Replace the diaphragm3、Clean the muffler.4、Replace the connecting rod seal
The lift is too low	1、The suction valve is damaged2、The flow is too high3、The air pressure is too low	1、Shotten the pipe and reduce elbows2、Turn down the drain valve.3、Add the air pressure
The noise is too low	1、The muffler is broken	1、Add the air pressure.

Gemaakt in China

VEVOR®

TOUGH TOOLS, HALF PRICE

www.vevor.com/support

VEVOR®

TOUGH TOOLS, HALF PRICE

We continue to be committed to provide you tools with competitive price. "Save Half", "Half Price" or any other similar expressions used by us only represent of savings you might benefit from buying certain tools with us compared top brands and does not necessarily mean to cover all categories of tools offered are kindly reminded to verify carefully when you are placing an order with us actually saving half in comparison with the top major brands.

VEVOR®

TOUGH TOOLS, HALF PRICE

Air Operated Double Diaphragm Pump

MODELL: QBK-40L/QBY4-50L/QBY4-25L/QBY4-25LF46 / QBY-15PP/QBK-15P/QBK-15

NEED HELP? CONTACT US!

Have product questions? Need technical support? Please feel fr contact us:

Technical Support and E-Warranty Certificate www.vevor.com/support

This is the original instruction, please read all manual instruction carefully before operating. VEVOR reserves a clear interpretation user manual. The appearance of the product shall be subject to product you received. Please forgive us that we won't inform you there are any technology or software updates on our product.

PRODUCT PRESENTATION

Six schematic diagrams of industrial piping and tanks, no text or labels present

PERFORMANCE CHARACTERISTICS

Technical diagram of a mechanical device with labeled components A through E and directional arrows indicating flow or movement.

Note: Affected by the stability of gas supply and the environment, the parameters may have certain fluctuations or errors, which is a normal phenomenon.

Model	Cmax(GPM)	Hmax(m)	pressuse(kgf/cm2)	suckedlift(m)	MaxgainDia(kgf/cm2)	Max pressure(pSI)	MWP	Pump
	(6PM)	(m)	(kgf/cm2)	(m)	(mm)
AIR Inlet outlet size							1.5"
OBK-40L	44	69	6.9	5	4.5	7	115	1.5"
OBY4-50L	75	75	8.0	7	8.0	8	113	2.0"
OBY4-25L	22	73	8.0	7	4.0	8	100	1.0"
OBY4-25L	24	70	8.0	7	4.0	8	100	1.0"
OBY-15PP	2.5	50	6.0	5	1.0	7	80	1/2"
OBY-15PP	2.5	50	6.0	5	1.0	7	80	1/2"
OBY-15P	2.5	50	6.0	5	1.0	7	80	1/2"
OBY-15P	3	60	6.9	5	1.0	7	90	1/2"
OBY-15P	3	60	6.9	5	1.0	7	90	1/2"
OBY-15	3	60	6.9	5	1.0	7	90	1/2"

QBK INSTALLATION SIZE CHART

QBY-10Structural drawing
01. Outlet pipe	02. Ball sealer
03. Seal seat	04. Diaphragm vane
05. Intermediate	06. Connecting components
07. Copperroads	08. Pump body
09. Inlet pipe	10. Valve play
12. Admi Ion piece	13. Air distribution valve

1 2 3 4 5 6 7 8 9 10 11 12

H1 C A E H2 NP/RC

FLANGE CONNECTION TYPE

Technical schematic diagram of a mechanical device with numbered components and cross-sectional views

GBY-50~100 Structural drawing
01. Admi Ion piece	02. Air distribution valve
03. Air distribution valve	04.Bail sealar
05. Seal seal	06. Diaphragm vane
07. Connecting components	08. Copper roads
09. Intermediate	10. Inft pipe
11. Air outlet	12. Outlet pipe

Model	A	B	D5	D6	C	H	H1	H2	DHI	DN2	N-D1	N-D2	D3	D4	E	N-d4	Outside diameter or ink	Materials
OBY-10 (ZL104) (ICR18N9TI) (pp)		53	/	190	235	35	220	3/8"Threaded	/	/	/	/	/	12	/	8	(HT200)
OBY-15	135	53	/	190	235	35	220	1/2"Threaded	/	/	/	/	/	12	/	8
OBY-25	255	150	100	380	530	70		1"Threaded	4-Φ11	4-Φ11	75	75	55	4-Φ10	10	10
OBY-40	255	150	130	120	380	530	70		11/2"Threaded	4-Φ13.5	4-Φ13.5	100	90	55	4-Φ10	10
OBY-25	220	160	100	370	460	50	410	1"Threaded	4-Φ11	4-Φ11	75	75	80	4-Φ12	10
OBY-40	220	160	130	120	370	460		410	11/2"Threaded	11/4"Threaded	4-Φ13.5	100	90		4-Φ12	10
OBY-50	340	215	140	140	550	715	95		2"Range	4-Φ13.5	4-Φ13.5	110	110	145	4-Φ17.5	12
OBY-65	340	215	160	140	550	715	95		21⁄2"Range	4-Φ13.5	4-Φ13.5	130	130	145	4-Φ17.5	12
OBY-80	360	260	190	190	580	950	100		3"Range	4-Φ17.5	4-Φ17.5	150	150	130	4-Φ17.5	12
OBY-100	360	260	210	190	580	950	100		4"Range	3"Range	4-Φ17.5	4-Φ17.5	170	170	130	4-Φ17.5	12

STRUCTURE DRAWING AND PARTS LIST

Exploded view diagram of a mechanical pump assembly with numbered parts for identification

No.	Name	Qty	Material
1	Inlet pipe	1	Stainless steel, cast iron, aluminium alloy, plastic, inner lining FEP
2	Outlet pipe	1	Stainless steel, cast iron, aluminium alloy, plastic, inner lining FEP
3	Pump body	2	Stainless steel, cast iron, aluminium alloy, plastic, inner lining FEP
4	Pump chamber	2	Aluminium alloy, cast iron
5	Intermediate	1	Aluminium alloy
6	Diaphragm vane	2	PTFE
7	Diaphragm vane	2	Acrylonitrile butadiene rubber, polychloroprene
8	ntermediate sealgasket	2	Acrylonitrile butadiene rubber
9	Driving shaft housing	2	Plastic
10	Connecting rod shaft housing	2	Plastic
11	Piston bush	2	Plastic
12	Piston	2	Plastic
13	Slipper block	1	Aluminium alloy
14	Slipper block	1	Chromium-plated steel
15	Sealing slip ring	1	Plastic
16	Driving slipper block	1	Plastic
17	Cover plate	1	Aluminium alloy
18	Cover plate gasket	1	Rubber
19	Muffler	1	Plastic
20	Seal seat	4	Rubber
21	Seal seat	4	PTFE
22	Clamping bar	4	Stainless steel, carbon steel
23	Connecting rod	1	Stainless steel
24	Compression spring	1	Copper
25	Driving shaft	1	Stainless steel
26	Seal ring of driving shaft	2	Rubber
27	Y-type O-ring	4	Rubber
28	O-ring	1	Rubber
29	Butterfly-type O-ring	1	Rubber
30	Inlet nozzle	1	Copper
31	Ball sealer	4	Rubber
32	Ball sealer	4	Stainless steel, ceramic, PTFE

MATTERS NEED ATTENTION

Malfunction forms	Causes	Troubleshooting
No water comes out from the pump or the flow is insufficient.	1、The air pressure is insufficient.2、The flow channel of the pump cavity is blocked3、The valve is not opened	1、Add the air pressure 2、Open the pump cavity for cleaning 3、Open the valve
The pump stops its operation	1、The air distribution valve is damaged2、The diaphragm is damaged3、The muffler is blocked4、Air leakage occurs in the conn-eciting rod seal	1、Repair or replace the air distribution valve2、Replace the diaphragm3、Clean the muffler.4、Replace the connecting rod seal
The lift is too low	1、The suction valve is damaged2、The flow is too high3、The air pressure is too low	1、Shotten the pipe and reduce elbows2、Turn down the drain valve.3、Add the air pressure
The noise is too low	1、The muffler is broken	1、Add the air pressure.

Tillverkad i Kina

VEVOR®

TOUGH TOOLS, HALF PRICE

www.vevor.com/support