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Introducing the Two-Piece Reinforced Nylon Check Valve

By Stacy Combest | June 12, 2013

Improved oil flow control in marine and industrial engines was accomplished by Minnesota Rubber and Plastics with a new check valve design that simplified manufacture while reducing part weight and cost.

Using glass reinforced Nylon, Minnesota Rubber and Plastics designed, molded and assembled a unique two-piece oil filter check valve that allows switching between two oil filters during routine engine operation.

The two molded components incorporate special rubber seals that are chemically and mechanically bonded to each end of the valve. These seals prevent oil flow to one filter during operation while allowing oil to flow to the second filter.

Glass reinforced Nylon was selected for this application because of its excellent stability at elevated oil temperatures. Another advantage was the valve’s hollow design structure, which provides relief from thermal expansion under operating conditions. This two-piece design also simplified the rubber molding process.

Minnesota-Rubber-and-Plastics

Also considered was a similar machined aluminum version of the check valve employing rubber seals bonded to both ends of the part. However, required undercuts made it impossible to die cast the part to required specifications, resulting in selection of the better alternative two-piece glass filled Nylon valve design.

Extensive testing proved the glass filled Nylon design to be far superior at regulating oil flow in addition to being lighter, easier to assemble and costing less.

Minnesota Rubber and Plastics
www.mnrubber.com

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Filed Under: Valves, Materials • advanced
Tagged With: minnesotarubberandplastic
 

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