Grundfos

KPG.1400.250.14.T.50.21.E.40 - Water pump Grundfos - Free user manual and instructions

Find the device manual for free KPG.1400.250.14.T.50.21.E.40 Grundfos in PDF.

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Product Type Water Pump (Centrifugal)
Model KPG.1400.250.14.T.50.21.E.40
Brand Grundfos
Application Water supply, irrigation, pressure boosting
Flow Rate (Nominal) 250 m³/h
Head (Nominal) 14 m
Power Supply 3-phase, 400V, 50Hz
Motor Power 21 kW
Speed 1450 rpm (4-pole)
Material Cast iron casing, stainless steel impeller
Connection Size DN 200 (8") suction and discharge
Operating Temperature -20°C to +40°C
Max Operating Pressure 10 bar
Dimensions (L x W x H) 1400 mm x 500 mm x 550 mm (approx.)
Weight Approximately 350 kg
Protection Class IP55
Insulation Class F
Features High efficiency, quiet operation, mechanical seal
Maintenance Regular check of seal, bearings, and motor ventilation
Safety Overload protection, thermal switch, IP55 enclosure
Spare Parts Seal kit, bearings, impeller, complete motor available

Frequently Asked Questions - KPG.1400.250.14.T.50.21.E.40 Grundfos

What is the recommended installation position for this pump?
The pump should be installed horizontally on a solid foundation, with the motor end facing up. Ensure adequate clearance for ventilation and maintenance.
Can this pump handle hot water?
Yes, the pump can handle liquids up to 40°C. For higher temperatures, consult the manual or contact Grundfos support.
How do I prime the pump before first use?
Fill the suction line and pump casing with liquid to ensure no air pockets. Open the vent plug on the pump to release trapped air. Start the pump with the discharge valve slightly open.
What type of electrical connection is required?
The pump requires a 3-phase 400V 50Hz supply. Use a suitable motor starter with overload protection. Ensure proper grounding.
How often should I check the mechanical seal?
Inspect the mechanical seal for leakage every 6 months. Replace if any dripping is observed. The seal life is typically 2-3 years under normal conditions.
What is the maximum suction lift?
The maximum suction lift is 3 meters at sea level. For higher altitudes, reduce lift accordingly to avoid cavitation.
Can the pump run dry?
No, running dry will damage the mechanical seal and bearings. Always ensure the pump is fully primed and never run without liquid.
How do I adjust the flow rate?
Use the discharge valve to throttle flow. Avoid operating below the minimum flow rate specified in the manual to prevent overheating.
What should I do if the pump vibrates excessively?
Check for cavitation (reduce suction lift or increase inlet pressure), inspect impeller for debris, and verify alignment. Ensure foundation bolts are tight.
Where can I find spare parts for this model?
Contact Grundfos authorized dealers or visit Grundfos.com. Use the model number KPG.1400.250.14.T.50.21.E.40 to identify the correct parts.

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USER MANUAL KPG.1400.250.14.T.50.21.E.40 Grundfos

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Product information

Brand : Grundfos

Model : KPG.1400.250.14.T.50.21.E.40

Category : Water pump