WEY Knife Gate Valves

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WEY Knife Gate Valves

Get durable, leak-tight solutions for harsh materials!

Wey Knife Gate Valves have been trusted worldwide for decades for their reliability and performance. They provide bidirectional zero-leakage shutoff and can handle a wide range of fluids with different consistencies. Moreover, the design prevents jamming and allows for easy maintenance and long-lasting performances. With a strong, corrosion- resistant build, these valves are also a cost-effective choice for tough applications.

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How It Works

It uses the “Original Wey Design,” featuring a unique sealing system first patented in 1956 and perfected over decades. This system creates a tight, reliable seal that can handle high-pressure differences and prevent leaks, even with abrasive or corrosive materials.

The sharp edge of the gate cuts through thick or sticky materials, making it easy to stop or allow flow. When the gate is closed, it presses tightly against the seal to prevent any leaks. The design also helps clean off any material stuck on the gate as it moves for smooth and reliable operation.

Specifications

Size: DN 50 to DN 1400 (Larger sizes available upon request)

Seal Materials: NBR, EPDM, FPM, PUR, AFLAS, PTFE, Ceramic

Flange Drilling: EN 1092, ASME B16.5/B16.47 Class 150/300

Materials: Cast Iron EN-JL1040, Ductile Iron EN JS1030/1072, Cast Steel, Stainless Steel 1.4408, Duplex 1.4470, Titanium, Hastelloy, Aluminium, and others

Pressure Rating/Vacuum: 10 bar, 16 bar, 25 bar, 40 bar, 100 bar / down to 10 mbar absolute

Temperature Range: –50°C to 230°C at max. operating pressure; up to 400°C at atmospheric pressure

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