Question: Our hot-water heater safety-pressure valve runs all the time and drains all the water out of the tank. Why? Answer: All water heaters have a valve to control temperature and pressure that is ...

As control valves play a key role in process quality and reliability, “extreme care” must be taken to avoid costly premature failures, possibly resulting in substantial loss and even plant shut-down, ...

Identify components to test: casing head, tubing head, tree body, master/swab/wing valves, chokes, flanged connections, annulus outlets, VR plug threads. Define barriers: primary (tree + tubing hanger ...

The new handheld control valve tester simplifies testing with dedicated tests that perform a quick health check to provide good/marginal/bad results Control valve testing has meant using complicated ...