2018 China New Design Rubber Flap Check 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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Good quality comes to start with; service is foremost; organization is cooperation" is our enterprise philosophy which is regularly observed and pursued by our firm for 2018 China New Design Rubber Flap Check Valve - PEEK throttle ring – DONGYI, The product will supply to all over the world, such as: United States , Bahamas , Gabon , Relying on superior quality and excellent post-sales, our products sell well in America, Europe, the Middle East and South Africa. We are also the appointed OEM factory for several worlds' famous products brands. Welcome to contact us for further negotiation and cooperation.

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