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Butterfly Valves • Resilient Seated |
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Spec Sheet for Figure 731 |
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Installation/Operation Manual |
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Drawings for Figure 731 — Wafer Butterfly Valve - BUNA-N Seat |
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*Autodesk's Revit or comparable software required to open RFA files
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Drawings for Figure 731 — Wafer Butterfly Valve - BUNA-N Seat, Gear Operator |
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*Autodesk's Revit or comparable software required to open RFA files
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Drawings for Figure 731 — Wafer Butterfly Valve - EPDM Seat |
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*Autodesk's Revit or comparable software required to open RFA files
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Drawings for Figure 731 — Wafer Butterfly Valve - EPDM Seat, Gear Operator |
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*Autodesk's Revit or comparable software required to open RFA files
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Drawings for Figure 731 — Wafer Butterfly Valve - Standard Configuration, 14" - 24" |
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Drawings for Figure 731 — Wafer Butterfly Valve - Standard Configuration, 2" - 12" |
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Drawings for Figure 731 — Wafer Butterfly Valve - Viton® Seat |
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*Autodesk's Revit or comparable software required to open RFA files
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Drawings for Figure 731 — Wafer Butterfly Valve - Viton® Seat, Gear Operator |
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*Autodesk's Revit or comparable software required to open RFA files
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Always verify that you have the most recent product specifications
or other documentation prior to the installation of these products. |
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| FNW cartridge style resilient seated butterfly valves are designed to meet the rigorous requirements of industrial applications such as pulp and paper, water purification, power and utilities, chemical/ petrochemical, food and beverage, OEM and HVAC. Each valve is manufactured in accordance with independent standards specifications and is 100% tested in both directions of operation to assure bubble-tight service for many years. | | Standard Features: |
- Designed for 125/150 lbs flanges
- Standard 316SS disc and stem offers superior strength and chemical resistance
- Mounting pad with square shaft permits direct mount actuation that reduces hysteresis and cost (2" to 12")
- Ribbed one-piece body for high strength and minimum weight
- Secured stem retainer plate for blowout-proof protection and also allows operator removal with valve in line
- High strength two-piece stem eliminates taper pins and disc screws from flow path
- Rated to 255 PSI (2"-12"), 188 PSI (14"-24")
- Cartridge style seat permits easy change without special tools
- Molded o-ring eliminates the need for flange gasket
- Shell tested to 150% and seat tested to 110% of maximum working pressure
- Wafer bodies cast iron to 12", ductile iron to 24", and Ductile iron lug bodies to 24"
- Dual PTFE shaft bearings for reduced torque and improved stem alignment
- Vacuum rated to 29.9196"Hg (0.01 Torr)+
- Epoxy coated body
- Low maintenance design
+ Vacuum measurements are often made in inches of mercury below atmospheric pressure. The values calculated here assume standard atmospheric pressure of 29.92 inches of mercury. |
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Figure X440
Figure 220AM
Figure 310AM/
311AM
Figure 600C/
601C
Figure 732 (Lug)
/731 (Wafer)
Figure HPA