Reliability Performance Report for Furon® HGVM Valves
March 21st, 2018
Furon HGVM valves were tested for reliability in an accelerated life cycle test that featured 300,000 cycles in 49 wt% hydrofluoric acid (HF) by an independent test lab using the protocol of a major US OEM manufacturer.
Accelerated Life Test Method
Eight Furon HGVM 2" valves were assembled in a manifold allowing two parallel flow paths through each set of 4 valves. Each set was cycled 3.5 seconds open and 3.5 seconds closed at room temperature with an actuator pressure of 80 psig. One set was opened as the other set was closed to maintain a constant flow of acid through the system at 74-80 psig. Flow was provided by a double diaphragm pump. Valves were inspected every workday for leaks. An accelerated life test was performed on the eight valves in 49% HF. Cleanroom grade HF was used. The acid was replaced halfway through the test to ensure that full chemical strength was maintained.