Info You Can Use from Cat Pumps: Regulator vs. Unloader Valves > Here is a question we hear from our customers quite often: what is the difference between a pressure regulator and a pressure-regulating unloader? > When using a pressure regulator, the pump and downstream components operate at the set system pressure. A pressure-regulating unloader performs the same function as a regulator but also contains a check valve on the discharge side. > When a downstream shut-off device is closed, the check valve seats against the body of the unloader, trapping downstream pressure. At the same time, pressure is relieved between the unloader valve and the pump. > Unloading the pump reduces wear on the drive components while protecting the pump against rapid heat rise. If the bypass is being redirected to the pump inlet, a thermal valve is recommended as a safeguard against excessive heat build-up. > Want to learn more? Check out this video prepared by the Cat Pumps Creative Services and Marketing folks. Get the best—get Cat Pumps! https://youtube/watch?v=PJO8U7fq7_s
Posted on: Mon, 10 Nov 2014 16:27:58 +0000
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