2018 Latest Design Star Discharge Valve - PEEK throttle ring – DONGYI Detail:
PROTECTING NON-METALLIC SEALING RINGS
Protection of non-metallic sealing rings from extruding
Allows the use of PTFE as a sealing ring at high pressures
Materials available for all fields of applications
back-up rings are used to prevent non-metallic sealing rings from extruding into the space between the piston rod and packing cup. Back-up rings, which are typically made of cast iron or bronze material, seal only the end face of the packing case cup. The bore hole has a small clearance from the piston rod. They are suitable for all fields of application in the process, natural gas, or food industry.
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By Freda from Latvia - 2017.11.20 15:58
After the signing of the contract, we received satisfactory goods in a short term, this is a commendable manufacturer.
By May from Comoros - 2017.08.18 11:04