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W68 / W88 / W98 Series - Throttling/Regulating Single Seat Valves

Throttling or regulating valves are designed for flow and pressure control applications. Fluid flows against the tapered curve of the valve seat allowing a calculated amount of flow through as it opens and closes. The throttling valve is typically equipped with a positioner. Throttling valves are used for flow control, pressure control, filler level control, and modulated filling. Delivering Single Seat Valves Faster Than Ever Don't let a valve shortage halt your progress. Our new Quick Ship Delivery Program in the US allows you to receive new or replacement WCB Single Seat W60 valves including W61 shut-off, W62 divert and W68 throttling valves, in five working days or less*.*.

*Conditions apply click here to learn more and find out how we can help you keep your production running smoothly.

Quick Ship Available

Most common W61/W62/W68 single-seat valve configurations ship from order date in 5 days or less.

Quick Ship Program
WHERE TO BUY

Our Quick Ship Program ensures rapid access to industry-leading pumps, valves, and mixer components—many shipping in as little as 5 to 10 working days.

Quick Ship Program

Whether you’re responding to an urgent need or planning for maintenance, the Quick Ship Program helps keep your operations running efficiently—with reduced downtime and increased reliability. Explore product-specific details below to learn how quickly we can deliver the equipment you rely on.

W60 Single-Seat Valves (W61, W62, W68) Quick Ship Program

Lead Time: 5 working days or less*

  • Sizes: 1” to 4”
  • Body configurations: Shut-off, divert, and throttling
  • Options for S-line and buttweld ports
  • CU4 24VDC control options, Viton and EPDM elastomers
  • No special tools required, easy to maintain, low cost of ownership

*Program limited to U.S. orders. Up to 10 units/day. Full order lead time applies when bundled with other items.

Sizes: 1" - 6" Tube O.D. (25 mm - 152 mm) Materials Product Wetted: ASTM 316L (UNS-S31603); (DIN-1.4404) Non-Product: ASTM 304 (UNS-S30400); (DIN-1.4301) Seat Material:

  • Metal
  • Tri-Ring

Elastomers:

  • FKM (Standard)
  • EPDM (Option)

Finish: < 32Ra (<0.8 µm) Other finishes available upon request

Model Types

  • W68 Series – Throttling
  • W88 Series – Aseptic Stem Flush Throttling
  • W682 or W882 Series – Divert Throttling
  • W685 or W885 Series – Non-Slamming Divert Throttling

Configurations Pneumatic Moore positioners - Uses 3-15 psi (.20-1.03 bar) pneumatic control signal and plant air supply to drive the seat plug into a certain position.

  • Direct acting (as input increases, supply air increase)
  • Reverse acting (as input increases, supply air decreases)
  • Cost effective way to control the valve

Electropneumatic Bürkert positioners - Uses a 4-20mA 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.

  • Positioner attaches right to the valve
  • Includes all of the controlling functions within the unit
  • Long service life
  • Also available with bus communication (DeviceNet, Profibus) and additional control options

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