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Knife Gate Valve Manufacturer in Europe – Valvesonly Europe (Italy)
Valvesonly Europe is a leading Knife Gate Valve Manufacturer in Europe, based in Italy. Our knife gate valves are designed for reliable isolation in abrasive, corrosive, and slurry applications, built in accordance with EN, ASME, and API standards. We supply valves for pulp & paper, wastewater treatment, mining, steel, power, and chemical industries where durability and tight shutoff are critical.
Function & Working
Knife gate valves use a sharp-edged gate to cut through solids, sludge, and viscous fluids. This ensures tight sealing and prevents clogging in pipelines. Available in rising and non-rising stem designs, our valves offer dependable service with manual, pneumatic, hydraulic, or electric actuation options.
Advantages
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Self-cleaning gate preventing media buildup
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Compact, lightweight construction for easy installation
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Bi-directional sealing available for fluctuating flows
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Soft or metal seated options for zero leakage performance
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Wide choice of actuation: handwheel, pneumatic, hydraulic, or electric
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Designed for long service life under severe conditions
Types Offered
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Standard Knife Gate Valve
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High-Pressure Knife Gate Valve (PN25–PN40)
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Bi-directional Knife Gate Valve
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Through-Gate Knife Gate Valve
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Square / Rectangular Knife Gate Valve
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Bellow Seal Knife Gate Valve
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Pressure Seal Knife Gate Valve
Industries Served
Pulp & Paper • Wastewater • Mining • Steel • Cement • Power • Petrochemical
Materials (Body, Gate & Seat)
Category | Material | Standards / Grades | Typical Use |
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Cast Iron | Grey Iron | EN-GJL-250 / ASTM A126 | Low-pressure water, wastewater |
Ductile Iron | SG Iron | EN-GJS-400-15 / ASTM A536 | Water, sewage, HVAC |
Carbon / Low Temp | WCB, WCC, LCB, LCC | ASTM A216 / A352 | Hydrocarbons, process fluids |
Stainless Steel | CF8, CF8M, CF3, CF3M | ASTM A351 | Corrosive / chemical service |
Duplex / Super Duplex | CD4MCu, UNS S32750, S32760 | ASTM A890 | Seawater, desalination, brine |
Alloy Steel / High Alloys | Alloy 20, Hastelloy, Inconel, Monel | ASTM A494 / ASTM B366 | Specialty chemical applications |
Seats (Soft) | EPDM, NBR, PTFE, RPTFE, PEEK | — | Wastewater, general service |
Seats (Metal) | Stellite, Hardfaced Chrome Carbide | — | Abrasive / high-temperature |
Technical Specifications
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Design Standards: MSS-SP-81, API 609, EN 593
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Size Range: DN50 – DN2000
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Pressure Ratings: PN6 – PN40 / Class 150 – 300
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End Connections: Wafer, Lug, Flanged, Butt Weld
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Operation: Manual handwheel, Pneumatic cylinder, Hydraulic actuator, Electric actuator
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Special Features: Hardened gates, Bi-directional shutoff, Low-maintenance design
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