Knife Gate Valves

VN series by WEY Sistag

The WEY VN Series: Unmatched Value and Reliability. Available through LINDER, the official dealer for Swiss manufacturer WEY, the VN Series knife gate valve delivers core performance at an optimal cost. This semi-lug design guarantees 100% bidirectional bubble-tight shutoff and exceptional operational safety, offering the perfect balance of low investment and minimal maintenance for your […]

Nominal sizes

DN 50 – 1400 mm

Pressure rating

PN 0 – 10 bar

Material

Stainless steel, Cast iron, Special material

Flange drilling

PN10, BS10-D, BS10-E, AS2129-D, AS2129-E

Face to face dimension

EN 558 series 20

VS series by WEY Sistag

Engineered to Endure. Sealed to Perfection. LINDER, as an official dealer of the Swiss manufacturer WEY, presents the VS Series knife gate valve. Its defining feature is the innovative semi-lug design, which achieves an exceptional balance of lightweight construction and robust performance. Crafted in stainless steel, it guarantees zero leakage and, like all WEY valves, […]

Nominal sizes

DN 50 – 900 mm

Pressure rating

PN 0 – 10 bar

Material

Stainless steel, Special material

Flange drilling

ANSI Class 150

Face to face dimension

MSS-SP81

VG series by WEY Sistag

Wey VG Valve – The Answer to Biogas Pipeline Challenges. Swiss precision meets agricultural demand. Through dealer LINDER, discover the WEY VG knife gate valve – a purpose-built solution for biogas. Its special flange makes it the direct replacement where conventional DIN gate valves fall short. Crafted in durable cast iron for nominal sizes DN […]

Nominal sizes

DN 150 – 200 mm

Pressure rating

PN 0 – 4 bar

Material

Cast iron

Flange drilling

Special flange

Face to face dimension

EN 558 series 20

VL series by WEY Sistag

VL Series: The Seal of Confidence. LINDER offers the WEY VL Series valve, where innovation meets reliability. The advanced lug design delivers both economy and top-tier performance. Built from stainless steel to withstand corrosion, its core advantage is a 100% bidirectional bubble-tight seal, ensuring ultimate safety and customer trust. Application areas Chemical and petrochemical industries, […]

Nominal sizes

DN 50 – 900 mm

Pressure rating

PN 0 – 10 bar

Material

Stainless steel, Special material

Flange drilling

ANSI Class 150

Face to face dimension

MSS-SP81

VM series by WEY Sistag

VM Series: Peak Performance, Zero Leakage Guaranteed. LINDER offers the advanced VM knife gate valve from Swiss manufacturer WEY. Designed to outperform conventional valves, its integrated design guarantees optimal flow and absolute sealing, eliminating downtime and maximizing your operational efficiency. Application areas Biogas plants, Mining, Chemical and petrochemical industries, Infrastructure, Coal fired power stations, Pulp […]

Nominal sizes

DN 50 – 600 mm

Pressure rating

PN 0 – 10 bar

Material

Ductile iron

Flange drilling

ANSI Class 150

Face to face dimension

MSS-SP81

MF series by WEY Sistag

The Direct Choice for Assertive Flow Control. Go beyond satisfaction with the MF Series knife gate valve from WEY. Its central flange and robust modular design deliver uncompromising performance. As the authorized dealer for Swiss precision manufacturer WEY, LINDER provides you with this versatile all-rounder, complete with its integrated sealing system and a full spectrum […]

Nominal sizes

DN 50 – 2000 mm

Pressure rating

PN 0 – 10 bar

Material

Cast iron, Ductile iron

Flange drilling

PN6, PN10, PN16, ANSI Class 150, BS10-D, BS10-E, AS2129-D, AS2129-E

Face to face dimension

EN 558 series 20

MG series by WEY Sistag

Defy the Pressure Limit with the MG Series. While standard knife gate valves cap at 10 bar, the MG Series is engineered for up to 16 bar, maintaining the same EN 558-20 face-to-face dimension. It combines this superior pressure rating with the proven design features that define a genuine WEY valve. Offered by LINDER, your […]

Nominal sizes

DN 50 – 800 mm

Pressure rating

PN 0 – 16 bar

Material

Stainless steel, Ductile iron, Special material

Flange drilling

PN10, PN16, ANSI Class 150, BS10-D, BS10-E, AS2129-D, AS2129-E

Face to face dimension

EN 558 series 20

MH series by WEY Sistag

WEY MH Series: Engineered for Extreme Pressure. As an official dealer of Swiss manufacturer WEY, we offer the MH Series — a valve built for the most demanding applications. Featuring the original bubble-tight Swiss design, it guarantees absolute sealing integrity, regardless of pressure, medium, or cycle frequency. Application areas Mining, Chemical and petrochemical industries, Infrastructure, […]

Nominal sizes

DN 100 – 400 mm

Pressure rating

PN 0 – 25 bar

Material

Stainless steel, Ductile iron, Special material

Flange drilling

PN25, ANSI Class 150, ANSI Class 300

Face to face dimension

EN 558 series 16

FB series by WEY Sistag

Conquer Tough Deposits with the WEY FB Series Full Bore Knife Gate Valve LINDER, as an official dealer of the Swiss manufacturer WEY, offers the proven FB Series. This valve combines WEY’s robust middle flange design with a completely free bore, making it the definitive solution for pigging and severe applications. Its integrated scraper cleans […]

Nominal sizes

DN 50 – 2000 mm

Pressure rating

PN 0 – 10 bar

Material

Stainless steel, Ductile iron

Flange drilling

PN6, PN10, PN16, ANSI Class 150, BS10-D, BS10-E, AS2129-D, AS2129-E

Face to face dimension

EN 558 series 20

W series by WEY Sistag

W Series: The Benchmark for Severe Service. When standard solutions fail, the W Series from Swiss manufacturer WEY prevails. Designed to exceed limits, it sets a new standard for flexibility and performance. LINDER is proud to offer this model, guaranteeing you a definitive advantage over any competition. Application areas Mining

Nominal sizes

DN 50 – 1400 mm

Pressure rating

PN 0 – 50 bar

Material

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

Flange drilling

ANSI Class 150, ANSI Class 300

Face to face dimension

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

DB series by WEY Sistag

The DB Series: Zero Leakage. Twice the Security. One Valve. For hazardous media, complexity is a risk. The DB Series “double block and bleed” knife gate valve from WEY eliminates it. This single valve replaces multi-valve systems by providing two independent seal areas, blocking pressure from both sides and allowing for cavity bleeding. The result […]

Nominal sizes

DN 80 – 750 mm

Pressure rating

PN 0 – 10 bar

Material

Stainless steel, Special material

Flange drilling

ANSI Class 150

Face to face dimension

Special length

DP series by WEY Sistag

WEY DP Series: The Ultimate Solution for Solids Handling. Tackle your most challenging applications with the WEY DP Series, available through LINDER, your trusted dealer for Swiss precision engineering. This valve is specifically engineered to excel where others fail. Its unique O-Port gate design effortlessly shears through solid columns within the medium, ensuring uninterrupted operation. […]

Nominal sizes

DN 50 – 400 mm

Pressure rating

PN 0 – 25 bar

Material

Stainless steel, Cast iron, Ductile iron, Cast steel, Special material

Flange drilling

PN10, PN16, PN25, ANSI Class 150

Face to face dimension

EN 558 series 20, Special length

HD series by WEY Sistag

The WEY HD Series: Engineered for Extreme Pressure. As the official dealer of Swiss manufacturer WEY, LINDER presents the HD Series—a knife gate valve redefined for pressures up to 100 bar. Its ingenious design uses medium pressure to create a self-actuating seal, while the special bonnet allows for easy cleaning of solid media without compromising […]

Nominal sizes

DN 80 – 400 mm

Pressure rating

PN 0 – 100 bar

Material

Stainless steel, Cast steel

Flange drilling

PN40, PN63, PN100, ANSI Class 600

Face to face dimension

Special length

TI3 series by WEY Sistag

Engineered for Isolation. Nothing Else. Stop using compromises. Through LINDER, the Swiss company WEY presents the TI3 Series: the only isolating valve purpose-built for transmitter isolation. Its unique design, featuring a standard 1/2″ socket drive, delivers unmatched reliability where adapted standard valves fall short. Application areas Pulp and paper industry.

Nominal sizes

DN 80 mm

Pressure rating

PN 0 – 10 bar

Material

Stainless steel

Flange drilling

ANSI Class 150

Face to face dimension

MSS-SP81

VK series by WEY Sistag

Break the Round Valve Limitation. Demand the Square Advantage. LINDER delivers the WEY VK Series Knife Gate Valve. Engineered with a decisive square shape, it conquers applications where round valves cannot. This is the definitive solution for achieving absolute zero-leakage shut-off on rectangular and square flange connections. Stop adapting; start dominating with Swiss WEY engineering, available now […]

Nominal sizes

DN 200 – 1000 mm

Pressure rating

0 – 2.5 bar

Material

Stainless steel, Cast iron, Special material

Flange drilling

Special flange

Face to face dimension

Special length

SG series by WEY Sistag

Conquer Solids with the WEY SG Series. LINDER brings you Swiss engineering from WEY. The SG Series valve, with its unique O-Port design, is built to dominate your most challenging solid-laden applications. It shears through media columns with unparalleled force, while its integrated transverse seal guarantees maximum tightness and performance, leaving conventional O-Port valves behind. […]

Nominal sizes

DN 50 – 650 mm

Pressure rating

PN 0 – 10 bar

Material

Cast steel, Special material

Flange drilling

ANSI Class 150

Face to face dimension

MSS-SP81

HSI series by WEY Sistag

The HSI Series: Instant Isolation for Explosive Environments. Exclusively from LINDER in partnership with WEY. As an official dealer of the Swiss manufacturer WEY, LINDER offers the HSI Series knife gate valve – a specialized safety solution engineered to prevent the propagation of dust explosions in pipelines. With an ultra-fast closing time of just 23 […]

Nominal sizes

DN 65 – 400 mm

Pressure rating

PN 0 – 16 bar

Material

Stainless steel

Flange drilling

PN16, ANSI Class 150, DIN 11864-2

Face to face dimension

Special length