how to choose the right centrifugal pump from a stainless steel water pump factoty ?

DONGGUAN WATER PUMP FACTORY SUPPLIES THAT

The selection of centrifugal pumps should be based on specific process requirements and industry standards. The following are the key points:

Standard Specification

Give priority to referring to American national standards such as ANSI/HI 9.6.1, ANSI/HI 9.6.3, and ANSI/HI 9.6.4. These standards provide general guidelines for net positive suction head (NPSH), preferred working area (POR), and allowable vibration values. Industries such as petrochemicals and natural gas need to follow specific design standards (such as API610 or GB/T16907). ‌

Core parameters

1. flow and head ‌ : Determine the pump operation range based on the maximum/minimum flow requirements of the process, in combination with the system curves (liquid level difference and friction loss).

2. Material selection ‌ : Cast iron pump body is highly durable and suitable for long-term operation; The sealing property must ensure the stability of the system. ‌

Operating conditions

The pump should operate for a long time near the ‌ optimal efficiency point (BEP) ‌ to ensure efficiency and reliability. It is necessary to verify that the vibration level complies with the standard (refer to ANSI/HI 9.6.4) to avoid equipment damage caused by fluctuations in working conditions.