Our company fabricates sealing rings (seats) for ball valves. We produce PTFE seats for valves with DN 10-300 mm to be operated under pressures of 6 to 20 MPa and seats  made from PTFE compounds (F4К20, F4К15М5, F5С15, F5С15М5) for valves to be operated under pressures of 16 to 40 MPa.

 

 

Characteristics of some compounds:

 

F4С15 - increased strength as compared to F4, including improved pressure deformation characteristics, wear resistance, chemical resistance and plug/ball surface "polishing" properties of the material;

F4К15М5 - improved strength and reduced fragility as compared to F4С15; addition of molybdenum disulfide (MoS₂) leads to formation of an additional protective coating on the mating metal surface which increases wear and corrosion resistance of the sealing seat and plug (ball); also, this compound has a better coefficient of friction which reduces efforts required for valve opening/closing. This compound is the material of choice for valves operated in liquefied gas media.

All parts can be fabricated to Clients' drawings or technical documents.