May 6, 2026

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W Series

Whether an application is referred to as “severe service”, “high performance”, or “heavy duty”, we have overcome the corresponding challenges with our Wey design. We pushed it to the limit, and the result is the W series. It offers the greatest flexibility, including for the range of nominal sizes, materials, and pressures. It opens up an incredible scope of application. With the W series, we guarantee that we will outperform the competition, no matter what the situation.

50 – 1400 mm

Nominal sizes

Stainless steel, Carbon steel, Cast tin-bronze Cast aluminum-bronze

Material

0 – 50 bar

Pressure rating

ANSI Class 150ANSI Class 300

Flange drilling

MSS-SP135 Class 150 short, MSS-SP135 Class 150 long, MSS-SP135 Class 300 short, MSS-SP135 Class 300 long

Face to face dimension

The robust universal bonnet can be used for a wide variety of actuator types. Many different add-on parts can be easily fitted.

A unique transverse seal, consisting of a transverse seal profile and packing compound, makes the body bubble-tight towards the atmosphere.

The transverse seal can be repacked at any time and under full pressure using the lateral packing screws.

A mechanically retained round cord seal creates a bubble-tight shut off on the gate edge.

The gate is mechanically guided over the full stroke.

In the closed end position, the gate is also mechanically supported.

With its optimized gate geometry, accumulated media is pushed out of the gate guide and flushed out into the bore by the increased flow.

The flange threads make assembly considerably easier, while also allowing for dead-end installation.

Application areas

Mining
e.g. Mining slurry, Sinter water, Tailings, Process minerals, 

MATERIAL OF CONSTRUCTION

Part Stainless steel
Body 316 Stainless steel
Gate 316 Stainless steel
Seal Aflas
Topwork Carbon steel
Stem / Piston rod 430F

 

Other materials upon request

CORROSION PROTECTION

Topwork Two-layer wet coating
Screws Stainless steel

 

Wey W3

Wey W3 with hydraulic cylinder in an oil sands mine in Canada.

Handwheel

Bevel gear

Pneumatic cylinder

Hydraulic cylinder

Electric actuator