High Performance Butterfly Valves

  • Flow Way Direction, Slot on top stem indicates positive disc position
  • Blow-out Proof Shaft, 17-4Ph stainless steel stem provides excellent strength, alignment and rigid support to disc.
  • Easy-Access Parking Gland, Provides means for packing adjustment even when “Direct-mount” actuation and insulation are utilized.
  • Top Stem Bearings, Top RPTFE/SS self-lubricating bearings provide excellent stem support and shaft alignment.
  • O-Ring, Extra Protection for leakage through body and seat retainer
  • Soft Seat, One-piece solid RPTFE static and dynamic seat design seals at both high and low pressures.
  • Wedge Pins, Provide positive mechanical attachment of disc to shaft.
  • Bottom Stem Bearings, Bottom RPTFE/SS self-lubricating bearings provide excellent stem support and shaft alignment.
  • Bottom Packing, The lower shaft utilizes seal in the body to prevent external leakage and simplify valve maintenance.
  • Shaft Retainer, Provides positive stem retention.
  • Mounting Top Flange, Meets ISO5211 pattern providing low cost “Near Direct Mount” actuation capability.
  • Extra Long Neck, Provides path for heat dissipation and allows space for insulation.
  • Stem Seal, Self-lubricating PTFE V-rings prevent leakage to atmosphere.
  • O-Ring, Serves as first line of defense for stem leakage
  • Retainer Cover, Maintains seat integrity prior to installation. Interchangeable with any seat option. Standard surface finish is 125 to 200 AARH. Compatible with both standard and spiralwound gasket designs.
  • Retainer Fasteners, SS set screws provide ease of seat replacement.
  • Over Travel Stop, Integrally cased into body, prevents disc from rotating in wrong quadrant and damaging seat
  • Anti-Static Grounding, provided by stem ball at the very end of the stem shaft.
  • Bottom Flange Cover, Equalizes pressure under shaft, eliminating “piston” effect at higher pressure

Application Data Sheet – Fill Out and Return for Accurate Quote


  • Type: ANSI 150 and 300 High Performance Butterfly Valve – Lug and Wafer Style
  • Model:  BL630 ANSI 150 Stainless Steel and Carbon Steel Lug (BW Wafer Style), BL730 ANSI 300 Stainless Steel and Carbon Steel (BW Wafer Style).
  • Size Range: 2”-120”
  • Body Material:  Stainless Steel and Carbon Steel
  • Disc and Stem: 416SS
  • Seat Material: RPTFE and Metal Seated
  • End Connections:  ANSI 150/300 Flanged or ANSI 150/300  Wafered
  • Pressure Class/Range: ANSI 150, 300, 600 and 900
  • Special Features: ISO 5211 Mounting Pad
                                    All Valves Individually Tagged
                                    All Valves Hydro Tested Prior To Shipping
                                    Actuators, Gear Operators and Lever Handles Available

High Performance Butterfly Valves Downloads