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Knife Gate Valve

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Knife Gate Valve Manufacturers in USA

A knife gate valve is a critical isolation valve used in industrial piping systems handling slurry, viscous fluids, and solids-laden media. Designed with a sharp-edged gate, these valves provide reliable shut-off with minimal clogging, making them ideal for harsh and abrasive service conditions.

SVR Global is a leading Knife Gate Valve Manufacturers and Supplier in USA, delivering engineered knife gate valve solutions for mining, pulp & paper, wastewater treatment, power plants, and chemical processing facilities. Our knife gate valves are designed for dependable isolation, smooth operation, and long service life in both standard and severe-service applications.

With extensive experience supporting EPC contractors and plant operators, SVR Global supplies knife gate valves that meet stringent project specifications and international isolation valve standards.

What Is a Knife Gate Valve?

A knife gate valve is a linear motion isolation valve designed to cut through thick fluids, slurries, and solids. The sharpened gate moves vertically to open or close the flow path, allowing effective shut-off in applications where conventional gate valves may clog due to media buildup.

Knife Gate Valve Applications in Industrial Systems

SVR Global knife gate valves are widely used in demanding industrial applications, including:

  • Slurry handling and mineral processing systems
  • Wastewater and sewage treatment pipelines
  • Pulp and paper stock and fiber processing lines
  • Power plant ash handling systems
  • Chemical and industrial process pipelines

These applications require valves capable of handling abrasive media, solids accumulation, and frequent operation with reliable sealing.

Types of Knife Gate Valves

SVR Global manufactures and supplies a comprehensive range of knife gate valve designs to suit diverse service conditions.

Uni-Directional Knife Gate Valves

Designed for low-pressure applications with flow in a single direction, offering cost-effective isolation.

Bi-Directional Knife Gate Valves

Provide tight shut-off in both flow directions, suitable for higher pressure and demanding slurry services.

Slurry Knife Gate Valves

Specifically engineered for abrasive, solids-laden, and fibrous media in mining and wastewater applications.

Pneumatic Knife Gate Valves

Used for automated and frequent operation in process, utility, and material handling systems.

Industries Served

SVR Global knife gate valves are supplied to industrial projects across the United States, including:

  • Mining and mineral processing plants
  • Pulp and paper manufacturing facilities
  • Wastewater and sewage treatment plants
  • Power generation and ash handling systems
  • Chemical and industrial processing units

Knife Gate Valve Materials & Standards

Knife gate valves are manufactured using materials selected based on pressure, temperature, and media characteristics:

  • Stainless steel knife gate valves for corrosive and chemical services
  • Carbon steel knife gate valves for industrial and moderate-pressure applications
  • Ductile iron knife gate valves for water and wastewater systems
  • Alloy steel knife gate valves for severe-service and abrasive environments

All SVR Global knife gate valves comply with MSS SP-81, ASME B16.34, ANSI, and DIN standards, ensuring compatibility with industrial piping systems and EPC project requirements.

Technical Specifications

  • Design Standards: MSS SP-81, ASME B16.34
  • End Connections: Wafer, Lug, Flanged
  • Size Range: DN50–DN1800
  • Pressure Rating: PN10–PN16 / ANSI Class 150
  • Temperature Range: Up to +200 °C
  • Operation: Manual, Pneumatic, Electric, Hydraulic
  • Service: On/off isolation

Inspection, Testing & Certification

All SVR Global knife gate valves undergo rigorous inspection and testing to ensure reliable isolation performance:

  • Hydrostatic shell and seat testing
  • Functional operation testing
  • Visual and dimensional inspection
  • Material traceability verification
  • EN 10204 Type 3.1 material certification

Special Design Features

  • Sharp-edged gate for effective slurry cut-off
  • Low pressure drop with unobstructed flow path
  • Compact face-to-face dimensions
  • Suitable for solids, fibrous, and viscous media
  • Low maintenance with robust construction

Why Choose SVR Global as Your Knife Gate Valve Manufacturer in USA?

  • Engineered isolation solutions for slurry and abrasive services
  • Proven support for mining, wastewater, and power projects
  • Compliance with US and international valve standards
  • Complete technical documentation and inspection records
  • Reliable long-term performance in harsh operating conditions

 

 

Unidirectional Knife Gate Valve

Unidirectional Knife Gate Valve

Unidirectional Knife Gate Valve Body: Carbon Steel, Ductile Iron, SS316 Knife: SS304, SS316 Disc: SS304, SS316L Wedge: SS304, SS316, SS316L Packing: PTFE Seal Ring: Polyurethane, EPDM, NBR, VITON Yoke: SS304, SS316 Packing Gland: CF8, WCB Nominal Size: DN50 to DN450 Nominal Pressure: Class150 to Class30, PN10 End Type: Wafer Type, Lug Type Operation: Handwheel, Electric Actuated, Pneumatic Actuated Design and Manufacture Standard: MSS SP-81 Face to Face Dimension: MSS SP-81

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Bidirectional Knife Gate Valve

Bidirectional Knife Gate Valve

Bi Directional Knife Gate Valve Body: Carbon Steel, Ductile Iron, SS316 Knife: SS304, SS316 Disc: SS304, SS316L Wedge: SS304, SS316, SS316L Packing: PTFE Seal Ring: Polyurethane, EPDM, NBR, VITON Yoke: SS304, SS316 Packing Gland: CF8, WCB Nominal Size: DN50 to DN400 Nominal Pressure: Class150 to Class30, PN10 End Type: Wafer Type, Lug Type Operation: Handwheel, Electric Actuated, Pneumatic Actuated Design and Manufacture Standard: MSS SP-81 Face to Face Dimension: MSS SP-81

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Slurry Knife Gate Valve

Slurry Knife Gate Valve

Slurry Knife Gate Valve Body: Ductile Iron, Carbon Steel Stem: F304, F316 Gate: F304, F316 Stem Packing: PTFE, Graphite Nominal Diameter: DN50 to DN600 Nominal Pressure: Class150, PN6, PN10, PN16 End Connection: Wafer, Lug Standard Compliance MSS SP-81, T 8691 Face to Face Dimension: MSS SP-81 Pre-temperature Rating: ANSI B16.34 Flanged Dimension: ANSI B16.5, DIN2533, HG20592 Inspection and Test: API 598, T 9092 Dimensions Unit: m

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Through Conduit Knife Gate Valve

Through Conduit Knife Gate Valve

Through Conduit Knife Gate Valve Body: Ductile Iron, WCB, CF8, CF8M Gate: SS304, SS316, SS2205, Stem: SS420, F304, F316 Seat: EPDM, Metal, Viton, PTFE, NBR Nominal Diameter: DN50 to DN500 Nominal Pressure: Class150, PN10, PN16 Operation: Manual, Electric Actuated, Pneumatic Actuated Dimensions DN NPS F-F 50 2” 48 65</

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Flanged Knife Gate Valve

Flanged Knife Gate Valve

Flanged Knife Gate Valve Body: Carbon Steel, Ductile Iron, SS316 Knife: SS304, SS316 Disc: SS304, SS316L Wedge: SS304, SS316, SS316L Packing: PTFE Seal Ring: Polyurethane, EPDM, NBR, VITON Yoke: SS304, SS316 Packing Gland: CF8, WCB Nominal Size: DN50 to DN450 Nominal Pressure: Class150 to Class30, PN10 End Type: Flanged Operation: Handwheel, Electric Actuated, Pneumatic Actuated Design and Manufacture Standard: MSS SP-81 Face to Face Dimension: MSS SP-81 Flanged End Dime

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