Super Purchasing for Food Grade Stainless Steel Ball 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.
Product detail pictures:
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By John biddlestone from Belarus - 2018.05.22 12:13
The goods are very perfect and the company sales manager is warmful, we will come to this company to purchase next time.
By Karen from Benin - 2017.02.14 13:19