4" Air Actuated Butterfly Valve, Lug, EPDM, Spring Return

Stock #: 564105
Brand: Valworx
Series: 5641
List Price: $936.00
Price: $748.80
Buy 3 or more for $673.92 each
Usually Ships: Same Day
Free Shipping on orders over $99
Air actuated soft seated butterfly valve for on-off control of water and other media compatible with the materials of construction. Lug style valve sandwich mounts between standard ANSI /ASME B16.5 Class 125 / 150 flanges. Spring return actuators use an air pressure signal (80-120 PSI) to open and springs to close the valve. The valve will fail closed upon loss of air signal.

Butterfly Valve Standard Features
  • Rugged epoxy coated ductile iron body with stainless steel disc for maximum corrosion resistance
  • Extended life span of valve and seals with unique wave line seat and special disc shape
  • Reduced torque from wave seal and disc design reduces size of actuator, lowering the cost
  • Increased flow capacity with unique profile disc and two piece shaft design
  • Valves direct mount to actuator using standard ISO5211 international standards

    • Pneumatic Actuator Standard Features
  • Extended cycle life (1 million cycles)
  • Rack & pinion design
  • Highly visible valve position indicator
  • Dry or lubricated pilot air
  • Factory lubricated for normal life
  • Anodized aluminum body with epoxy-polyester covers
  • Namur & ISO mounting

    • Options (see Accessories tab)
    Type Air Actuated Lugged Butterfly Valve- Spring Return
    Pipe Size4 inch Lug design
    Suitable FlangesANSI /ASME B16.5 Class150, B16.1 Class 125
    Flow CapacityCv 929 (Cv = number of GPM of 60 °F water at 1 psi pressure drop)
    Pressure Rating29 inHg vacuum to 230 PSI
    Valve Temperature Range0 to 248 °F (-18 to +120 °C)
    Actuator Temperature Range0 to 180 °F (-18 to +82 °C)
    Valve BodyDuctile iron, epoxy coated (seat facing acts as flange gasket)
    Disc316 stainless steel
    Disc Seat/Liner EPDM
    Shaft SealsEPDM V-ring
    Upper/Lower StemSS420
    Cycle TimeApprox. 1 to 1.5 second per 90° rotation
    Air Pilot Pressure80-120 PSI
    Air Connections1/4" NPT (plus NAMUR pad for solenoid valve)
    Actuator SealsNBR
    Enclosure ProtectionIP67 Weatherproof
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