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Mosites A20N Butterfly Valve

The Mosites A20N Butterfly Valve was developed in response to market demand for a high cycle butterfly valve. Reduced torque and low profile disc increases the A20N cycle capabilities and economizes your actuation cost. Uniquely suited for applications involving continuous cycling, the Mosites A20N Butterfly Valve provides reliable service in flow control applications. Incorporating the same features as the A20, the A20N meets API 609 and MSS-SP 67 laying length (face-to-face) dimensions for quick replacement of standard butterfly valves.

A20 Butterfly Valve

  • STEM – 17-4 PH STAINLESS STEEL ASTM A 564 (ALLOY 625, HASTALLOY C, MONEL ALSO AVAILABLE.)One piece full length stem with integral “DD” disc position indicator.
  • STEM RETAINER – ALLOY 625 ASTM B 446Insures positive retention of stem.
  • BODY – CAST CARBON STEEL ASTM A 216 GRADE WCB WAFER OR LUGStronger than cast or ductile iron. Not subject to thermal shock. Also available in stainless steel and aluminum.
  • DISC – INVESTMENT CAST – 316 SS ASTM A744 CF3M (AL/BRZ, ALLOY 20, HASTALLOY C, MONEL ALSO
    AVAILABLE.)
    Has superior corrosion resistance. Polished edge reduces torque requirements.
  • EXTERIOR FINISHHigh gloss epoxy. Maximum protection from environmental corrosion.
  • GASKET SURFACEBonded to valve body. Will not “fold” on insertion between flanges.
  • BUSHING – DELRINReinforced top stabilizer bushing prevents side loading.
  • SECONDARY STEM SEALPressure activated Viton seal ring.
  • PRIMARY STEM SEALIntegrally molded O-Ring seal.
  • BODY LINERMolded and bonded to body; prevents seat blowout.
  • PRIMARY STEM SEALIntegrally molded O-Ring seal.
  • BUSHING/RETAINER CUP – DELRINReinforced bottom stabilizer bushing prevents side loading and leak path to casting. Provides protection to stem from premature wear caused by metal-to-metal contact.
  • DISC TO STEM CONNECTIONFlat drive mechanism.

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