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产品介绍
Valworx 564031 蝶阀
Air Actuated Butterfly Valve 2" Wafer,NBR,Double Acting
Valworx
Series: 5640 , Air actuated soft seated butterfly valve for on-off control of air, oil and other media compatible with the materials of construction. Wafer style valve sandwich mounts between standard ANSI /ASME B16.5 Class 150 flanges and other international standards. Double acting air actuators use air pilot pressure to open the valve and air pilot pressure to close the valve. Butterfly Valve Standard Features Rugged 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 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) Direct mount solenoid valves Position confirmation switches with visual indicator Pneumatic positioners 3-15 PSI or 4-20mA
Pipe Size 2 inch wafer design Suitable Flanges ANSI /ASME 125/150, EN1092 PN10, PN16, BS10 Table D, Table E, JIS B2239 10K, 16K 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 Actuator Temperature Rating 0 to 180 °F (-18 to +82 °C) Valve Temperature Rating 5 to 185 °F (-15 to +85 °C) Valve Body Ductile iron, 3-layer Epoxy/Epoxy/PUR coating (seat facing acts as flange gasket) Disc 316 stainless steel Disc Seat/Liner NBR (Buna-N) Shaft Seals NBR (Buna-N) 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) Valve Design Complies with API 609, MSS SP-67, BS 5155, EN593, Inspection to API 598, passed AWWA C504-87
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