The Proco Pen-Seal is designed to provide a gas and water-tight seal. All sizes have been tested to withstand a hydrostatic seal up to 20 psig or 40 feet of head pressure, in addition to withstanding temperatures up to 250 °F.
The Pen-Seal’s standard elastomer material is EPDM, but a Nitrile material is available if the seal may come in contact with hydrocarbons, oil, gas, jet fuel, or miscellaneous solvents.
The Pen-Seal utilizes glass-reinforced plastic, and all hardware is manufactured from steel zinc dichromate. For corrosion resistance, 316 stainless steel hardware is available.
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