DuraVent PolyPro Flex Viton Replacement Gasket: replacement rubber seals for flex vent parts
The DuraVent PolyPro Flex Viton Replacement Gasket is a rubber seal for PolyPro Flex vent parts. Made from Viton rubber, these replacement gaskets come in packs of 12. Choose the size that matches your flex: 2, 3, 4, or 5 inch. PolyPro is DuraVent’s polypropylene vent pipe for high efficiency condensing gas boilers, furnaces, and water heaters. Each end of the flex needs a gasket, at both the top and bottom. The gasket sits in the first complete groove closest to the cut end. A flex fitting closes around that end with two locking tabs.
Soapy water is the only lubricant to use on the gasket, never petroleum grease. Before PolyPro Flex is used, the appliance manufacturer must approve it for that appliance. The system uses only DuraVent terminations, the parts that end the vent. An existing chimney serving as the passage for the liner must first be inspected and confirmed sound. Need the fitting that takes two gaskets? See the DuraVent PolyPro Flex Coupler Adapter. The DuraVent PolyPro Flex Viton Replacement Gasket ships free from My Cozy Outdoors with No Sales Tax (except WY) and the full manufacturer warranty.
Details
SKU: 2PPS-GAF | 3PPS-GAF | 4PPS-GAF | 5PPS-GAF
Applications
PolyPro is a polypropylene vent pipe for use with ANSI Category II and IV gas-burning appliances, including highefficiency water heaters, condensing boilers and warm air furnaces. Poly Pro is listed by Intertek to the ULC S636 standard in Canada as a Class IIA, IIB and IIC vent system suitable for exhaust temperatures up to 230°F / 110°C, and a maximum positive pressure of 15 in-w.c.
Materials and Construction
Rigid pipe constructed of 2.2mm (minimum) thick polypropylene. Flex is double-wall polypropylene. EPDM or Viton gaskets.
Clearances
General: 0″ clearance to combustibles for exhaust temperatures up to 194°F / 90°C.
Vertical Installations: 0″ clearance for vertical installations up to exhaust temperatures of 230°F / 110°C.
Horizontal Installations: ¼” / 6mm clearance to combustibles for horizontal installations at exhaust temperatures up to 230°F / 110°C.
Concentric vent system components, including Horizontal and Vertical Terminations: 0″ clearance to combustibles for exhaust temperatures up to 230°F / 110°C.
Diameters
2” (60mm) | 3” (80mm) | 4” (100mm) | 5” (130mm)
Listings
Listed with the appliance in the USA, check with appliance manufacturer. Intertek / ETL listed to ULC-S636 Listed as a Class IIA, IIB, and IIC vent system.
Previously the CSA certification trademark was shown in error in conjunction with the PolyPro product – references have been removed.
Videos
Newly Designed PolyPro® Locking Clamps Video
PolyPro® Double-Wall Video
Why Polypropylene? DuraVent’s PolyPro® Venting System Video