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AWWA C517 ECCENTRIC PLUG VALVE

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TECHNICAL SPECIFICATIONS

DESIGN STANDARD AWWA C517 / MSS SP 108
SIZE RANGE 2" - 28"
PRESSURE RATING 175 / 250 psi
WORKING TEMPERATURE -10˚C ~ +80˚C
END CONNECTION ANSI B16.1 Class 125/250 - Flange ANSI B16.5 Class 150 AWWA C111 - Mechanical Joints Ends
TEST & INSPECTION AWWA C517 / MSS SP 108
MATERIALS
Body Ductile Iron
Plug Ductile Iron + NBR / EPDM

DESIGN DETAILS

      • VAHN-TECH AWWA C517 Eccentric Plug valves are available with rectangular or round port.
      • The plug is made of ductile iron and fully encapsulated with EPDM or NBR rubber, providing leakage tight sealing, making it suitable for vacuum working conditions. Thanks to the encapsulation, the plug is also fully protected against corrosion. Compression between the rubber and the PTFE thrust gasket prevent abrasive particles from entering the bearing area.
      • An overlay with a minimum of 90% pure nickel is welded over the seat area for long term corrosion resistance and improved tightness over the plug valve life.
      • The stem seal design is self-adjusting. It is isolated from the plug stem and external torque device and is unaffected by pressure variations.
      • The rubber encapsulated plug sealing surface matches the nickel alloy seat and the plug stem located in body and bonnet, making the relative position of the upper and lower stem towards the sealing surface unchanged. It ensures that low torque operation is continous.
      • The port design with improved internal contours gives high-capacity straight-through flow in the full-open position. It reduces the turbulence and pressure drop and increases the capacity for immersed solids in the medium.
      • VAHN-TECH Rectangular Port Eccentric Plug Valves offer a 100% port area to provide high-capacity flow.
      • High-strength ductile iron body reduces the weight and improves the valve’s long-term durability.
      • All iron parts are coated inside & outside with fusion-bonded epoxy for corrosion resistance per AWWA C550.
      • Bearings are permanently lubricated, oil impregnated sintered SS316.
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