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.
CHARACTERISTICS W0-W1-W2-W3
Nominal sizes
Material
Pressure rating
Flange drilling
Face to face dimension
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The robust universal bonnet can be used for a wide variety of actuator types. Many different add-on parts can be easily fitted.
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A unique transverse seal, consisting of a transverse seal profile and packing compound, makes the body bubble-tight towards the atmosphere.
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The transverse seal can be repacked at any time and under full pressure using the lateral packing screws.
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A mechanically retained round cord seal creates a bubble-tight shut off on the gate edge.
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The gate is mechanically guided over the full stroke.
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In the closed end position, the gate is also mechanically supported.
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With its optimized gate geometry, accumulated media is pushed out of the gate guide and flushed out into the bore by the increased flow.
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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 | |||
| Body | Ni-Resist | Ductile Ni-Resist | Carbon Steel |
| Gate | 17.4 PH | 17.4 PH | 17.4 PH |
| Seal | GFLT | Aflas | GFLT |
| Topwork | Carbon Steel | Carbon Steel | Carbon Steel |
| Stem / Piston rod | 430 Chrome Steel | 17.4 PH Steel | 430 Chrome Steel |
Other materials upon request
CORROSION PROTECTION
| Body | Ecoat | |
| Topwork | Epoxy Powder Coat, Stainless steel | |
| Screws | B4, Stainless, B7 | |
ACTUATORS
Handwheel
Bevel gear
Pneumatic cylinder
Hydraulic cylinder
Electric actuator
General documents
Data sheets
- W0 with handwheel
PDF - W0 with bevel gear
PDF - W0 with pneumatic cylinder
PDF - W0 with hydraulic cylinder
PDF - W1 with handwheel
PDF - W1 with bevel gear
PDF - W1 with pneumatic cylinder
PDF - W1 with hydraulic cylinder
PDF - W2 with bevel gear
PDF - W2 with pneumatic cylinder
PDF - W2 with hydraulic cylinder
PDF - W3 with bevel gear
PDF - W3 with pneumatic cylinder
PDF - W3 with hydraulic cylinder
PDF
CAD files
News & Stories
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Ready for the first use
The first shipment of our upgraded W series is imminent. Several knife gate valves W3 30" are leaving our factory in Shannon, MS next week for Alberta, Canada, where they will be used in oil sands. In addition to various improvements of its robustness and tightness in high pressure areas, the new valve design comes with a universal bonnet which is suitable for all actuators.
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Into the wilderness
These 3” and 4” knife gate valves W0 are headed to the Australian Outback. They will be introduced into a mining operation transporting a slurry of abrasive minerals and water. Their fully enclosed bonnets and hardened wear rings will ensure the operation never ceases. Additionally, the valves include rotary lockouts to ensure safe operations.
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Operation under extreme conditions
Abrasive mine slurry, sulfuric acid, temperatures of 220°C and high pressures: These W0 DN300 knife gate valves are working under extreme conditions. They were installed several years ago in a mine in Turkey. Body and gate are made of Super Duplex steel for higher resistance of the valves. The pneumatic cylinders have a fail-safe function: if power or compressed air should ever fail during operation, the valves close automatically to prevent damage.
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Upgrade of our W series
After decades of experience in heavy duty applications, the optimized design is now even more robust.
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Buried Service
With this robust W0 knife gate valve, we are literally immersing ourselves in Canadian mining. The enclosed bonnet is designed for buried service.
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Large scale assembly for oil sands mines
28 of these heavy-duty W3 DN 30" knife gate valves were assembled and tested by our team in the USA and shipped to Canada. There, the valves are used under the toughest conditions in oil sands mining.
