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 Butterfly Valves |
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Butterfly Valves
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FEATURES
Body
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One piece ribbed wafer and lugged body is Polyester coated as standard for a superior appearance and excellent resistance to external corrosion.
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Heavy duty ISO5211 Top plate is slotted for use of actuation and engineered to accept direct mounting of operators.
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Standard extended neck provides full clearance for 2" of insulation.
Disc
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Streamlined design offers higher CV and lower pressure drop.
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Machined Double D drive ensures close tolerances thereby elimating the imprecision commonly found in the cast-in drives offered by our competitors.
Shaft
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Triple shaft seals support the primary seal on machined radius of the disc. Our triple shaft seals ensure a dry stem design.
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Two secondary shaft seals are located inside the seat shaft holes and an environmental shaft seal eliminates contaminates from entering the shaft bore.
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Two self lubricated bronze bearings offer consistent torque value and eliminate side loading.
Disc/Shaft Connection
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A high strength machined Double D drive ensures a positive shaft to disc connection.
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Disc floats inside the seat for positive sealing and extended seat life.
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No pins or bolts are exposed to flow.
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Offset shaft retainers mechanically retain the shaft in the body ensuring a blow out proof design.
Manual Controls
Handle Kit
The Handle Kit is designed for manual on/off and throttling service for quarter turn, resilient seated butterfly valves ranging from 2" - 12". The Polyester coated ductile iron handle kit includes the handle assembly with a locking lever and bolt on plate notched at 10 degree increments. The notched plate also includes on/off stops to prevent over travel of the handle and can be used with a padlock as standard. Other available options include an Infinite Throttling Handle Kit, Memory Stop and a 2" Square Nut.
Handwheel Gear Kit
The Handwheel Gear Operator is designed for manual on/off and throttling service for quarter turn butterfly valves ranging from 2"?-12".The Handwheel gear operator's constructed with a heavy duty, Polyester coated cast iron housing, is Completely self lubricated and weatherproof. Along with the gear operator, it also includes a valve position indicator, ductile iron Handwheel and mechanical travel stops for field adjustment. Other available options include a Chainwheel Kit, Padlock Kit and a 2" Square Nut.
SPECIFICATIONS
Materials of Construction 2" - 12"
Body
Disc
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Electroless Nickel Plated Ductile Iron ASTM A536 (65-45-12)
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Aluminum Bronze ASTM B148 (954)
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Nylon 11 Coated Ductile Iron ASTM A536 Grade (65-45-12)
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316 Stainless Steel ASTM A351 (CF8M)
Shaft
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