A knife gate valve is a specialized type of isolation valve designed to handle challenging media such as slurries, viscous fluids, and solids-laden liquids. Its defining feature is a sharp-edged gate that can cut through thick media, ensuring a tight seal and preventing clogging. This design makes knife gate valves particularly effective in industries like pulp and paper, wastewater treatment, mining, and chemical processing, where reliable shut-off in harsh conditions is essential.

Unlike traditional gate valves, knife gate valves have a thin, compact profile and are typically lighter in weight. They are designed primarily for on-off services and are not suitable for throttling applications, as partial opening can lead to vibration and potential damage.

As demand for efficient flow control solutions grows, numerous knife gate valves suppliers and knife gate valve manufacturers have emerged, offering a range of products tailored to specific industrial needs. These manufacturers provide valves in various materials, sizes, and configurations, including options for manual, pneumatic, or electric actuation, to meet the diverse requirements of modern industries.

Top 8 Knife Gate Valve Manufacturers 2025

CN Lixin Valve Group Co., Ltd.

Company Overview

Established in 2000, CN Lixin Valve Group Co., Ltd. is a leading Chinese manufacturer specializing in the research, development, production, and sales of industrial valves. With over two decades of experience, Lixin has grown into a national-level non-regional group, committed to providing advanced fluid control solutions worldwide. Their state-of-the-art 50,000-square-meter facility houses CNC machining centers, various large and medium-sized equipment, and specialized testing devices, supporting an annual production capacity of 20,000 tons. The company employs over 450 staff, including more than 50 senior and intermediate engineering technicians, ensuring robust technical support and continuous innovation. Lixin’s products have passed multiple international certifications, such as ISO 9001, CE, and API 6D, reflecting their commitment to quality and global standards.

Lixin Knife Gate Valve

Lixin Valve Group offers a comprehensive range of knife gate valves designed to handle viscous, heavy liquids, and abrasive media. Their products are widely used in industries such as wastewater treatment, cement production, mining, and more. Key features of Lixin’s knife gate valves include:

Diverse Product Range: Lixin has developed 10 series encompassing over 200 types of knife gate valves, including wafer, lugged, bonneted, and lined variants.
High Capacity and Customization: They can manufacture valves up to DN3000 (NPS 120) in diameter, with maximum pressure ratings reaching 300LB (PN50), tailored to specific working conditions.
Innovative Design Features:
- Short face-to-face dimensions and lightweight construction save pipeline installation space.
- Self-cleaning discs that scrape off adhered media during operation, enhancing sealing performance.
- Wedge-type blocks provide reliable sealing force.
- Guide pins ensure smooth operation.
- Wear-resistant sleeves made from various materials extend valve service life.
- Multiple drive options available, including electric, gearbox, pneumatic, and hydraulic actuators.

DeZURIK

Company Overview

DeZURIK is a leading manufacturer of industrial valves, renowned for its innovative solutions and commitment to quality. With a history spanning over 90 years, DeZURIK has established itself as a trusted name in the valve industry, serving a wide range of sectors including water and wastewater, pulp and paper, mining, chemical, and power generation. Their extensive product line includes plug valves, butterfly valves, control valves, and notably, knife gate valves.

DeZURIK Knife Gate Valves

DeZURIK offers a comprehensive range of knife gate valves designed to handle challenging media such as slurries, viscous fluids, and solids-laden liquids. These valves are engineered for durability and reliable performance in demanding applications.

Key DeZURIK Knife Gate Valve Models:

KGC Cast Stainless Steel Knife Gate Valves: Premier valves suitable for corrosive and abrasive applications, featuring options like bi-directional sealing and metal cutting capabilities.
KGN Cast Stainless Steel Knife Gate Valves: Economical valves for general service, available with metal or resilient seats.
KSV Severe Service Knife Gate Valves: Designed for high-pressure and abrasive services, meeting MSS SP-135 standards.
KUL Urethane Lined Knife Gate Valves: Ideal for abrasive slurry applications, featuring a bonded urethane liner for enhanced abrasion resistance.
KSL Slurry Knife Gate Valves: Bi-directional valves with resilient sleeves, suitable for high solids content and corrosive media.

Clarkson

Company Overview

Clarkson is a renowned brand under Emerson, specializing in high-performance knife gate valves tailored for demanding slurry and abrasive applications. With over 50 years of experience, Clarkson has set industry standards in elastomeric sleeve technology, delivering reliable and durable solutions for industries such as mining, mineral processing, and wastewater treatment.

Clarkson Knife Gate Valves

Clarkson knife gate valves are engineered to provide exceptional performance in challenging environments. Key features include:

100% Isolation: Achieving bubble-tight shut-off, ensuring zero downstream leakage.
Bi-directional Flow: Double-seated designs allow for flow in both directions, enhancing versatility.
Advanced Sleeve Technology: The Mark III sleeve design offers improved abrasion resistance and longer service life.
Ease of Maintenance: Simplified designs enable rapid sleeve replacement without special tools.

Davis Valve

Company Overview

Davis Valve, headquartered in Memphis, Tennessee, is a prominent manufacturer specializing in a comprehensive range of industrial valves. Established with a commitment to quality and innovation, Davis Valve serves various industries, including water treatment, chemical processing, and manufacturing. Their product lineup encompasses knife gate valves, wafer checks, boiler stop checks, ball valves, strainers, gates, globes, swing checks, plug valves, and butterfly valves, catering to diverse operational requirements.

Davis Knife Gate Valves

Davis knife gate valves are engineered to provide reliable isolation in systems handling slurries, viscous fluids, and solids-laden liquids. These valves are designed for durability and ease of maintenance, making them suitable for various industrial applications.

Key Features of Davis Knife Gate Valves

Wide Size Range: Available in sizes ranging from 2″ to 36″, accommodating diverse system requirements.
Material Options: Constructed from materials such as CF8 (304 SS), CF8M (316 SS), CG8M (317 SS), WCB steel, and ductile iron, ensuring compatibility with different media and environmental conditions.
Design and Construction: Featuring a solid one-piece cast body with integrally cast gate jams and guides, these valves offer robust performance and reliability.
Actuation Options: Equipped with hand wheels, gears, chain wheels, or air cylinders, providing flexibility in operation and control.
Blowout-Proof Design: Incorporates blow-out proof packing glands and nylock locking nuts, enhancing safety and operational integrity.

Bray International

Company Overview

Bray International is a global leader in the design and manufacturing of industrial valves, actuators, and control systems. With a strong presence in over 40 countries, Bray offers innovative solutions across various industries, including chemical processing, water and wastewater treatment, mining, oil and gas, and power generation.

Bray Knife Gate Valves

Bray knife gate valves are engineered for reliable on-off isolation in demanding applications. These valves are particularly suitable for handling slurries, viscous fluids, and solids-laden liquids. Bray offers a range of knife gate valves designed to meet the specific needs of various industries.

Key Models of Bray Knife Gate Valves

Series 740: A bidirectional slurry valve designed for easy conversion between manual and pneumatic actuation. It features a lubricant injection port for continuous, smooth operation with minimal maintenance.
Series 941: A unidirectional knife gate valve offering both metal and soft seating options to provide various sealing requirements. It is engineered for general-purpose on/off service and isolation.
Series 942: A unidirectional knife gate valve featuring a replaceable vortex breaker and metal seat options, designed for demanding industrial processes in pulp and paper applications.
Series 746: A bidirectional slurry valve with a one-piece urethane liner molded throughout the body and chest, providing Class VI shutoff in abrasive applications.

DSS Valves

Company Overview

DSS Valves, based in Niles, Michigan, is a leading manufacturer specializing in severe service knife gate valves. With decades of engineering and manufacturing expertise, DSS Valves caters to industries such as oil & gas, mining, steel, pulp & paper, power, and wastewater treatment. Their valves are designed to withstand harsh environments, handling differential pressure scenarios, corrosive materials, extreme temperatures, and detrimental solids. All products are made in North America, ensuring high-quality standards and performance.

DSS Knife Gate Valves

DSS knife gate valves are engineered for reliable isolation in demanding applications, offering zero-leakage performance and robust construction. Key features include:

Guided Shear Gate Design: Ensures smooth operation and effective cutting through media.
Dual Transverse Seals: Provide bi-directional sealing, enhancing reliability.
Full Round Port: Minimizes pressure drop and protects pipeline installations from harmful turbulence.
Non-Rising Stem: Made from stainless steel and Xylan coated, eliminating corrosion issues while reducing actuation torque.
Fully Welded Steel Top Structure: Provides strength and rigidity needed for demanding applications.

Fabri Valve

Company Overview

Fabri-Valve, a brand under ITT Engineered Valves, is renowned for its expertise in designing and manufacturing high-performance industrial valves. With a legacy of over 50 years, Fabri-Valve specializes in producing robust valve solutions tailored for demanding applications across various industries, including mining, wastewater treatment, chemical processing, and power generation. Their commitment to quality and innovation has established them as a trusted name in the valve manufacturing industry.

Fabri Knife Gate Valves

Fabri knife gate valves are engineered for reliable isolation in systems handling slurries, viscous fluids, and solids-laden liquids. These valves are designed to provide tight shutoff and durability in challenging environments.

Key Models of Fabri Knife Gate Valves

Fabri-Valve CF37 Heavy Duty Knife Gate Valve: Designed for heavy-duty applications, the CF37 features a rugged one-piece cast body and is available in sizes up to 96 inches. It offers a wide range of seat options, including integral metal, replaceable hardfaced metal, rubber “D” ring, replaceable rubber, polyurethane, UHMW-P, and PTFE.
Fabri-Valve C67 Bi-Directional Knife Gate Valve: This valve provides bubble-tight, bi-directional shutoff with its patented perimeter seal. It’s available in sizes from 2 to 36 inches and is suitable for abrasive slurry and wastewater applications.
Fabri-Valve XS150 High Performance Knife Gate Valve: Featuring a robust perimeter seal, the XS150 offers bi-directional bubble-tight shutoff. It’s ideal for demanding applications requiring high performance and reliability.
Fabri-Valve OM150 Urethane Lined Knife Gate Valve: Providing an economical solution for abrasive and corrosive applications, the OM150 features a urethane lining that enhances durability and performance.

Technequip

Company Overview

Technequip Knife Gate Valves, a product line under FLSmidth Krebs, are engineered for reliable isolation in demanding applications, particularly in handling abrasive slurries. These valves are designed to provide tight shutoff and durability in challenging environments.

Technequip Knife Gate Valves

Technequip knife gate valves are designed for reliable isolation in systems handling slurries, viscous fluids, and solids-laden liquids. These valves are designed to provide tight shutoff and durability in challenging environments.

Key Models of Technequip Knife Gate Valves

TG Series: A true bi-directional slurry knife gate valve with an open-body design and full port flow. Replaceable rubber sleeves are designed to seal and withstand the harsh, abrasive conditions inherent in mining and milling applications.
TGH Series: A heavy-duty, wide-body, slurry knife gate valve designed specifically for highly abrasive applications. Available in bevel gear, hydraulic, air cylinder, handwheel, and electric actuators with a high-pressure rating up to 300 PSI.
TGHP Series: An extra high-pressure version of the TGH series, designed for the most demanding applications. Available with a high-pressure rating up to 740 PSI.

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