Reliability Performance Report for Furon® HPVM Valves
April 25th, 2018
Furon HPVM valves, Normally Closed (NO), were tested for reliability 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 HPVM valves were assembled in a manifold (valve set A in Figure to the left) allowing two parallel flow paths through each set of 8 valves. Each set was cycled 3 seconds open and 3 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 76-80 psig. Flow was provided by a double diaphragm pump. Valves were inspected every workday for leaks.
The accelerated life test was performed on a set of 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. Furon HPVM high purity valves are ideal for use in the semiconductor industry or other applications requiring high purity and/or superior chemical resistance.