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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It really is a good way to further improve our goods and service. Our mission would be to acquire inventive items to buyers with a very good encounter for 2018 China New Design Rubber Flap Check Valve - PEEK throttle ring – DONGYI, The product will supply to all over the world, such as: Turin , Naples , Barcelona , Our company insists on the principle of "Quality First, Sustainable Development", and takes "Honest Business, Mutual Benefits" as our developable goal. All members sincerely thank all old and new customers' support. We will keep working hard and offering you the highest-quality products and service.

Speaking of this cooperation with the Chinese manufacturer, I just want to say"well dodne", we are very satisfied.
