Valworx 579706A high performance stainless steel butterfly valve for control of air, oil and other media in corrosive environments. Wafer style valve sandwich mounts between customer supplied ANSI /ASME Class 150 and other international standard flanges and gaskets. 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.
The valve is direct mounted to the actuator using the international standard ISO5211 mounting pad.
High Performance Butterfly Valve Standard Features
High quality, passivated 316 stainless steel (CF8M) body for excellent corrosion resistanceDouble offset design greatly reduces seal wear17-4PH stainless steel, single piece shaftRPTFE valve seats and stem sealsHeavy duty, single piece cast and machined disc with integral mounting sleeveBi-directional seal design ensures increased sealing force in either flow directionIntegral ISO 5211 mounting pad eliminates additional mounting brackets
Pneumatic Actuator Standard Features316 Stainless steel body, pistons and pinionIP66 enclosure rating suitable for washdown applications Extended cycle life (1 million cycles)Quarter turn rack & pinion designHighly visible valve position indicatorDry or lubricated pilot airFactory lubricated for normal lifeNamur & ISO mounting
Options (see Accessories tab)
| Type | All Stainless Air Actuated High Performance Butterfly Valve- Spring Return |
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| Pipe Size | 6 inch (DN150) |
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| Disc Size | 5.70 inches |
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| Suitable Flanges | ANSI /ASME B16.5 Class150, MSSSP44 Class 150, API605 Class 150, JIS B2212 10K, JIS B2212 16K |
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| Flow Factor | Cv 1350 (Cv = number of GPM of 60 °F water at 1 psi pressure drop) |
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| Pressure Rating | 285 PSI (19.7 Bar), 29 inHg vacuum |
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| Valve Temperature Range | -40 to 450 °F (-40 to 230 °C) |
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| Actuator Temperature Range | -4 to 176 °F (-20 to 80 °C) |
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| Valve Body | 316 Stainless steel |
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| Disc | Single piece, machined 316 stainless steel |
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| Disc Seat/Liner | RPTFE |
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| Stem Packing | RPTFE |
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| Actuator Body/Pistons/Pinion | 316 Stainless Steel |
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| Enclosure Rating | Type 4X (IP66) weatherproof |
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| Cycle Time | Approx. 4 seconds open/1 second close per 90° rotation |
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| Air Pilot Pressure | 80- 120 PSI |
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| Air Connections | 1/4" NPT (plus NAMUR pad for solenoid valve) |
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| Actuator Seals | NBR |
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Digital Smart Positioner
