WC-Co by HVOF on Monel Ball valve
Hi all,
I need your suggestions and solution to the problem we are facing.
We have WC-Co by HVOF on Monel Ball valve to work in "Ammonium Bifluoride with excess Hydrogen Fluoride" media. The customer has complained that the coating is wearing faster. A brief description is given below
Service Temp - 285F
Pressure - 3 to 5 psig.
Media - Ammonium Bifluoride with excess Hydrogen Fluoride
Min/max on temperatures - Ambient to 285F
Flow rate - <1/2 GPM
Required shut off - Class VI
Cycles per day - 24
Ball Valve, Size 25mm Class 800, Full bore, Seat they are using right now is Glass filled PTFE.
Can you suggest what could be the problem And also any alternate material to be sprayed on this.
regards
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