Flange protectors

Closed-cell flange protectors are much less expensive than stainl bands. However, if not installed properly they can actually accelerate c msion if a path is created through the material to allow moisture to en... 

It has happened more than once that when called on site to check so-called defective brand new valves, the valves to be installed were waiting under the sand or at least in very dirty circumstances, with flange protectors removed. It is very important that due precaution is taken to keep the valves clean inside at all times and that the inlet and outlet flanges are protected at all times. Dirt, whether in a valve or in associated piping, can be very damaging and can cause an SRV to become inoperative even before it has to perform its duty. 

Valves which are not installed immediately after receipt from the manufacturer should be dosed off properly at both inlet and outlet flanges particular care should be taken to keep the valve inlet absolutely clean. Flange protectors, covering the whole inlet and outlet flange, should only be removed just before installation. 

---