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Rotating in reverse direction 2010-12-08
Assuming that the pump is OFF, and the check valve is leaking and the water is comming baack to the pump causing a rever
Water motor gongs 2010-12-08
I have noticed a trend over the past few years. Many new sprinkler systems are installed with no water motor gong and no
What does pump run back refer to? 2010-12-07
I'm new to to pump selection and engineering (as well as the forum). I have heard and read the term "pump run back" and
Test procedure for butt weld end valve 2010-12-07
I would like to know the shop procedure for hydrostatic test butt weld end valve as per API 598. This procedure should b
Closed loop pneumatically actuated valve operation 2010-12-07
During normal operation, the actuator to the main valve is held closed by an 80 psi instrument air line. Upon loss of a
Discharge pressure on submersible pump 2010-12-06
I am troubleshooting pump performance on a 58hp submersible Flygt pump. I want to install a pressure gage on the dischar
VSD output damage 2010-12-06
We have the output damaged on a VSD driving a 1200kW cyclone pump on a mine. After three weeks of operation the drive di
Need help to design an ammonia absorber 2010-12-06
We have a 5000 US gal tank for aqua ammonia storage. We fill this tank from tanker truck by air compressor. Filling is f
