Needle Valve Series

Product drawing»

Structural drawing»

You are here: News > News Detail

Pump Warm Up Procedures And Hot Alignment

2010-11-29

My question is three-fold regarding warm up:

How quickly do you allow pumps to be warmed up?  I've heard that most OEMs suggest about 100F per hour to allow even thermal expansion. 

How do you warm pumps?  I've heard about warm-up lines that bypass discharge check valves, holes drilled in check valves, and operators cracking the suction with a line to process sewer off the discharge.  How do you recommend regulating the speed at which the pump is warmed up? 

How far along in the warm-up procedure do you suggest performing a "hot alignment"?  

The heat-up rate should be specified by the manufacturer.  But, every one I ever looked up was 100

Shanghai MeiYan Yi Pump & Valve Co., Ltd.
MeiYan Yi needle valve Contact MeiYan Yi
Shanghai Enine Pump & Valve Co., Ltd.
Enine needle valve Contact Enine
Shanghai Saitai Pump & Valve CO., Lid.
Saitai needle valve Contact Saitai
Shanghai Fengqi Industrial Development Co., Ltd.
FengQi needle valve Contact FengQi