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Sure Flow Butterfly Valves

  • Extended neck design for ample application of insulation.
  • One-piece / uni-body construction of ductile cast iron designed to accommodate ANSI 125/150 flanges.
  • Integral ISO 5211 mounting flange will accept all styles of hand lever, multi-turn manual gear and power operators/actuators. Stem Double D.
  • Teflon impregnated bronze stem bushings to assure long life even during extended periods of inactivity. Lowers operating torque to ease operation manually or when power assisted.
  • One-piece resilient seat with molded-in (integral) o-ring seal eliminates the need for additional flange gaskets. Valve body designed to limit seat compression to optimum dimensions.
  • One-piece resilient phenolic back seat has molded-in (integral) o-ring seal for upper and lower valve shafts. Works with disc edge hub seals to provide a double stem seal.
  • Valves DN 50 to 500 (2" to 20") meet the intent of and have passed AWWA C504-87 Section 5 proof of design tests.
  • Phenolic backed seat premium features:
    • Dimensionally stable seat sealing surface
    • Minimal seat wear, extending seat life
    • Blow-out proof seat
    • Easily field replaceable
    • Non-distorting shaft hole with molded-in (integral)o-ring seal
  • Suitable for open left or open right operation.
  • One-piece shaft design
  • Butterfly standard with a hard back seat. No movement of the seat which results in a constant torque.
  • Butterfly valves available up to 48 inches.
Types BFV 125/150 Lug

Type BFV 125/150 Wafer


Butterfly Valves are manufactured in accordance with the specifications from ISO 5272, International Standards Organization and MSS SP-67, Manufacturers Standardization Society and API-609, American Petroleum Institute. Latest revisions. Both Lug and Wafer series valves are designed for ANSI 125/150 lb. class flanges. Valve sizes from 2" to 12" are rated at 200 psig WOG service and valve sizes from 14" to 30" are rated at 150 psig WOG service. All valves are full rated on dead-end service.

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