Polypropylene Double Threaded Bolted Fittings
Require 2 Gaskets - EPDM or Viton
Bolted polypropylene fittings are equipped with 316 stainless steel bolts and come standard with EPDM gaskets. Viton gaskets are available as an option for the fittings.
Viton is a high tech. elastomer designed for extreme heat, oil and chemical resistance. Viton resists aliphalactic aromatic and halogenated hydrocarbons, concentrated acids, alkalis, animal and vegetable oils.
Stainless Steel Double Threaded Bolted Fittings
Bolts are threaded into the back plate of the fitting so there are no welds or bolt holes that can be potential points of leakage. These fittings come standard without a gasket (with the exception of the 4") and require a single gasket that is installed on the inside of the tank. Available gaskets are cross-linked polyethylene, EPDM and Viton. (4" fitting comes standard with a cross-linked polyethylene gasket.)