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.

I am an automotive technician specializing in European performance cars including but not limited to Porsche, Mercedes, BMW, Jaguar, Volvo, etc.. In Houston, Texas the emissions testing for cars now i

I now have a couple of valve manufacturer's brouchers and Cross section drawings which does not have the bottom central trunion, instead there is a step in the side (Just after the seat). The manufact

I have an unusual problem. I am designing a 10 MGD Lift Station and 30

where can i find evidence/proof/article/etc. for the fact that reverse flow (from discharge to suction) can not occure in positive displacement pumps when it is stopped , because of the way it is cons

The question I have is... do all check valves use springs? What other small economical options are there to use a checkvalve design without springs?

I am designing a sewage force main which is about 5 km length and 500mm diameter. The maximum flow is 440 l/s (raw sewage) for an operating pumping head of 60m.

I have three outdoor above ground bulk storage tanks for No. 2 diesel fuel. Each has a pump discharging into a common supply line. A check valve at each pump prevents backflow if one of the pumps fai