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 FeaturesRugged 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 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)
| Type | Air Actuated Lugged Butterfly Valve- Spring Return |
|---|---|
| Pipe Size | 2 inch Lug design |
| Suitable Flanges | ANSI /ASME B16.5 Class150, B16.1 Class 125 |
| Flow Capacity | Cv 124 (Cv = number of GPM of 60 °F water at 1 psi pressure drop) |
| Pressure Rating | 29 inHg vacuum to 230 PSI |
| Valve Temperature Range | 0 to 248 °F (-18 to +120 °C) |
| Actuator Temperature Range | 0 to 180 °F (-18 to +82 °C) |
| Valve Body | Ductile iron, epoxy coated (seat facing acts as flange gasket) |
| Disc | 316 stainless steel |
| Disc Seat/Liner | EPDM |
| Shaft Seals | EPDM V-ring |
| Upper/Lower Stem | SS420 |
| Cycle Time | Approx. 1 second per 90° rotation |
| Air Pilot Pressure | 80-120 PSI |
| Air Connections | 1/4" NPT (plus NAMUR pad for solenoid valve) |
| Actuator Seals | NBR |
| Enclosure Protection | IP67 Weatherproof |
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