Air actuated soft seated butterfly valve for on-off control of hydrocarbons, oil and other media compatible with the materials of construction. Lug style valve sandwich mounts between standard ANSI /ASME B16.5 Class 125 / 150 flanges. Double acting actuators use an air pressure signal (80-120 PSI) to open and close the valve.
Butterfly Valve Standard FeaturesRugged epoxy coated (3-layer) 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 FeaturesExtended 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)
Butterfly Valve Standard Features
Pneumatic Actuator Standard Features
Options (see Accessories tab)
Pipe Size
2-1/2 inch Lug design
Suitable Flanges
ANSI /ASME B16.5 Class150, B16.1 Class 125
Flow Capacity
Cv 247 (Cv = number of GPM of 60 °F water at 1 psi pressure drop)
Pressure Rating
29 inHg vacuum to 230 PSI
Actuator Temperature Rating
0 to 180 °F (-18 to +82 °C)
Valve Temperature Rating
5 to 338 °F (-15 to +170 °C)
Valve Body
Ductile iron, 3-layer Epoxy/Epoxy/PUR coating (seat facing acts as flange gasket)
Disc
316 stainless steel
Disc Seat/Liner
FPM (Viton)
Shaft Seals
FPM (Viton) V-ring
Upper/Lower Stem
SS420
Cycle Time
Approx. 1 to 1.5 seconds per 90° rotation
Air Pilot Pressure
80-120 PSI
Air Connections
1/4" NPT (plus NAMUR pad for solenoid valve)
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Price: $67.20
Buy 10 or more for $60.48 each
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Price: $67.20
Buy 10 or more for $60.48 each
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Limit Switch
Price: $113.60
Buy 6 or more for $102.24 each
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Valve Positioner
Price: $444.80
Buy 3 or more for $400.32 each
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Price: $374.40
Buy 3 or more for $336.96 each
We provide 3D CAD models in Solidworks or STEP file formats for most of our Valworx products.Please email sales@valworx.com to request the specific files you need. Include the stock number of the valve and any accessories with your request.
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