Overview
Throttling or regulating valves are used to control flow, pressure, or level in high purity processing applications. Waukesha's W68 series of valves use a tapered stem seat to allow a calculated amount of flow through the valve as it opens or closes. W68 or W88 valves are typically equipped with a positioner.
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Features
With multiple bodies, actuators, stem types and a wide range of control tops, these valves can be configured to precisely fit any application.
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Bodies machined from solid bar 316L with laser welded ports
- Stems available with low and high flow Cv Values
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Standard "S" clamps used to connect adapters and bodies
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High pressure capability
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Seal options Tef-Flow, Tef-Flow P, Tri-Ring (FKM or EPDM), Metal Plug
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Open yoke 3-A design
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Specifications
Sizes:
Available in 1” to 6” (25mm – 152mm) OD sizes.
Materials:
Product Wetted: ASTM 316L (UNS-S31603); (DIN-1.4404)
Non-Product: ASTM 304 (UNS-S30400); (DIN-1.4301)
Seat Material:
Elastomers:
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FKM (Standard)
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EPDM (Option)
Finish: < 32Ra (<0.8 µm) Other finishes available upon request
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Models & Functions
W68 Series- Throttling
W88 Series- Aseptic Stem Flush Throttling
W682 or W88- Divert Throttling
W685 or W885- Non-Slamming Divert Throttling
Positioner Configurations
Pneumatic Moore positioners use 3-15 psi pneumatic control signal and air supply to drive seat plug into a certain position
Burkert Electropneuamitc positioners use a 4-20 mA electronic feedback signal between the valve stem sensor and a solenoid in the control top which adds or vents air into the actuator to move the plug seat up or down depending on the desired position.
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Videos
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Datasheets
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Flyers
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Manuals
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