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BRAY Isolation and control valves
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  Bidirectional Knife Gate Valve - Series 740

Bidirectional Knife Gate Valve SERIES 740

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Size Range
DN50-900
Temperature Range
EPDM: -54 to 120°C; Viton®: -26 to 200°C
-26 to 200°C
Maximum Pressure
DN 50 to 600: 10bar; DN 750 to 900: 7bar
7 - 10 bar
Body Materials
Carbon Steel (WCB), CF8 Stainless Steel
SS CF8M, Carbon WCB
Stem Materials
304 Stainless Steel
Seat Materials
Buna-N, EPDM, Viton®
EPDM, Viton®
Gate Materials
17-4PH, Hastelloy® C, Monel®
317 SSl, Hastelloy®
Packing
PTFE
PTFE
Body Style
Single Piece, Lug
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 The Bray Series 740 Bidirectional Knife Gate Valve showcases advanced industrial valve technology, featuring a robust one-piece, cast body design for optimal performance across diverse applications. Its replaceable soft seat ensures resilience durability and adaptability for automated processes, facilitating precise on/off operations. The one-piece cast body seamlessly integrates with a flexible wire-reinforced elastomer seat, delivering bidirectional zero leakage shutoff in various industrial settings.

 The mechanically and geometrically retained steel-reinforced elastomer seat guarantees bidirectional zero leakage shutoff, enhancing operational efficiency across industries such as Pulp & Paper, Power, Wastewater, Chemical, and Ethanol. The Bray Series 740 Knife Gate valve is known for its reliability, versatility, and superior performance, making it the preferred solution for demanding industrial applications worldwide.

  Bidirectional High Performance Slurry Valve - Series 752

Bidirectional Knife Gate Valve SERIES 752

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Size Range
DN50-600
Temperature Range
EPDM: -36 to 90°C; Viton®: -26 to 200°C
-36 to 200°C
Maximum Pressure
16 bar
16 bar
Body Materials
Carbon Steel (WCB), CF8 Stainless Steel
SS CF8M, Carbon WCB
Stem Materials
304 Stainless Steel
Seat Materials
Buna-N, EPDM, Viton®
EPDM, Viton®
Gate Materials
17-4PH, Hastelloy® C, Monel®
317 SSl, Hastelloy®
Packing
PTFE
PTFE
Body Style
Two-piece bolted
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 The Bray Series 752 Bidirectional Knife Gate Valve is an engineered solution designed for precise and reliable handling of slurries. Its innovative design, featuring a two-piece bolted body and a steel-reinforced molded perimeter seat, ensures bidirectional zero leakage shutoff even under demanding operational conditions. With a diverse range of actuator options including Direct Mounted Handwheel Standard (2"-10"), Bevel Gear Standard (12"-24"), Pneumatic, Hydraulic, and Electric, it addresses various operational requirements.

 Primarily utilized in Chemical, Mining, and Power industries, the Series 752 demonstrates excellence in valve technology, delivering superior performance, durability, and adaptability

 Configured in a two-piece bolted wafer design, optimizing space utilization and offering installation flexibility. Packing Options: PTFE impregnated synthetic fiber, PTFE w/Buna-N Quad Seal, PTFE w/Viton® Quad Seal.

  Bidirectional High Performance Slurry Valve - Series 762

Bidirectional Knife Gate Valve SERIES 762

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Size Range
DN 80-1200
Temperature Range
Natural Rubber: -51° to 74°C EPDM: -54° to 150°C
-51 to 120°C
Maximum Pressure
DN 80 to 600: 7 bar / DN 650 to 1200: 3 bar
3 - 7 bar
Body Materials
Ductile Iron, Carbon Steel, Stainless Steel
Ductile Iron, Carbon SS
Stem Materials
304 Stainless Steel
Seat Materials
Natural Rubber, Buna-N, EPDM
EPDM, Natural Rubber
Gate Materials
304, 316, 317 SS,17-4PH, Hastelloy® C, Monel®, Titanium
317 SSl, Hastelloy®
Packing
Encapsulated J-ring
Encapsulated J-ring
Body Style
Two-piece bolted
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 The Bray Series 762 Heavy-duty Slurry Valve, equipped with advanced Bray SlurryShield Technology, ensures exceptional performance and reliability. It effectively prevents media buildup that often prevents other knife gates from reliable isolation and provides bidirectional isolation, showcasing excellence in valve technology and making it the preferred choice for demanding industrial applications.

 Constructed from durable ductile iron, this valve ensures durability and longevity in harsh conditions. The two-piece bolted flange style body adds strength to the design, while also provide quick and easy maintenance. The two elastomers sleeves provide a replaceable component of the assembly and enable the valve body, gate and topworks to have a long life cycle. The full bore design, when fully open, minimizes resistance to line media, optimizing flow efficiency.

  Bidirectional slurry valve - Series 765

Bidirectional slurry valve SERIES 765

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Size Range
DN 50-300
Temperature Range
Natural Rubber: -51° to 74°C EPDM: -54° to 120°C
-51 to 120°C
Maximum Pressure
6.2 bar
6.2 bar
Body Materials
Ductile Iron, CF8, CF8M, CF3M, WCB
Ductile Iron, WCB
Stem Materials
304 Stainless Steel
Seat Materials
Natural Rubber, Buna-N, EPDM
EPDM, Natural Rubber
Gate Materials
17-4PH, Hastelloy® C, Monel®
317 SSl, Hastelloy®
Packing
Self-adjusting secondary seal
Self-adjusting seal
Body Style
Two-piece bolted
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 The Bray Series 765 is a bidirectional slurry valve, designed for demanding slurry applications. Twin elastomer seats and push-through gate design facilitate self-cleaning and prevent media build up.

 The durable ductile iron body is offered in a compact wafer style. When fully open, the valve bore offers no resistance to line media.

 Designed for easy, quick conversion between manual and pneumatic actuation. Featuring a lubricant injection port for continuous, smooth operation with minimal maintenance.. Secondary wiper seal extends gate life and prevents discharge from top of valve. Metal-reinforced, elastomer sleeves provide energized, zero leakage shutoff in both directions. In the open position, the energized sleeves shield all metal components from direct contact with the flowing process media.. Robust gate available in a wide range of corrosion resistant alloys to suit the application..

  BIDIRECTIONAL HIGH PRESSURE KNIFE GATE VALVES - Series 767

Bidirectional high pressure slurry valve SERIES 767

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Size Range
DN80-900
Temperature Range
Natural Rubber: -51° to 74°C EPDM: -54° to 120°C
-51 to 120°C
Maximum Pressure
20 - 51bar
20 - 51bar
Body Materials
Carbon Steel WCB
Carbon WCB
Stem Materials
304 Stainless Steel
Seat Materials
Natural Rubber, Buna-N, EPDM
EPDM, Natural Rubber
Gate Materials
17-4PH, Hastelloy® C, Monel®
317 SSl, Hastelloy®
Packing
Encapsulated J-ring
Encapsulated J-ring
Body Style
Two-piece bolted
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 The Bray Series 767 Knife Gate Valve is engineered specifically for high-pressure slurry applications. Equipped with advanced Bray SlurryShield Technology, this valve excels in abrasive & corrosive industrial environments, ensuring optimal performance. Constructed from durable cast WCB, the valve body showcases durability and extended lifespan. Its two-piece bolted wafer style design facilitates easy installation and maintenance while upholding high-performance standards.

 Featuring a push-through gate design, the Series 767 ensures bidirectional zero leakage shutoff, making it ideal for use across diverse industries including Mining, Pulp & Paper, General Industry, Power, and Cement. The two eslastomer sleeves are replaceable components of the assembly and enable the valve body, gate and topworks to have a long life cycle. Maintenance can be preformed onsite and customer does not have to send the asset away for extended periods of down time.

  Bidirectional slurry Knife Gate valve - Series 768

Bidirectional slurry Knife Gate valve SERIES 768

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Size Range
DN50-600
Temperature Range
Natural Rubber: -51° to 74°C EPDM: -54° to 120°C
-51 to 120°C
Maximum Pressure
DN 50 to 400: 10bar / DN 450 to 600: 6.2bar
10 bar
Body Materials
CF3M Stainless Steel, Ductile Iron
SS CF8M, Ductile Iron
Stem Materials
304 Stainless Steel
Seat Materials
Natural Rubber, Buna-N, EPDM
EPDM, Natural Rubber
Gate Materials
17-4PH, Hastelloy® C, Monel®, Titanium
317 SSl, Titanium
Packing
Encapsulated J-ring
Encapsulated J-ring
Body Style
Two-piece bolted
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 The Knife Gate Valve Series 768 an engineered solution for heavy-duty slurry handling applications. With a compact wafer face-to-face dimension, this valve provides an efficient and space-saving solution for diverse slurry handling needs, equipped with Bray SlurryShield Technology and can be a direct replacement for conventional knife gate valves.

 The valve features a design incorporating twin elastomer sleeves and a self-cleaning gate. The gate is designed to withstand 1.1 times the pressure rating of the valve, ensuring durability in high-pressure applications. Higher pressure ratings can be achieved by utilizing higher yield gate materials such as Duplex 2205 or 17-4PH stainless steel. Sleeves can be replaced onsite enabling the valve to return to service quickly for a long service life. Certifications include the CRN and PED Category I Module A for Group 2 liquids, ensuring compliance with industry standards and regulations.

  Unidirectional Knife Gate Valve - Series 940

Unidirectional Knife Gate Valve SERIES 940

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Size Range
DN50-600
Temperature Range
EPDM: -36 to 90°C; Viton®: -26 to 200°C
-36 to 200°C
Maximum Pressure
10 bar
10 bar
Body Materials
Carbon Steel (WCB), CF8 Stainless Steel
SS CF8M, Carbon WCB
Stem Materials
304 Stainless Steel
Seat Materials
Buna-N, EPDM, Viton®
EPDM, Viton®
Gate Materials
17-4PH, Hastelloy® C, Monel®
317 SSl, Hastelloy®
Packing
Standard multi-layer square packing
Standard multi-layer
Body Style
Single Piece, Lug
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 The Bray Series 940 Unidirectional Knife Gate Valve, it is designed with a single-piece cast body design. It is available with integral metal or replaceable soft seats, allowing for customization based on specific application requirements. The valve is easily automated for on/off applications, enhancing operational efficiency. Whether you are dealing with abrasive materials or corrosive substances, this valve delivers optimal performance. From wastewater treatment plants to mining operations.

 With integration into automated systems, this valve streamlines operations and reduces the need for manual intervention, minimizing downtime and optimizing productivity. Each valve undergoes testing procedures including shell and seat tests as per MSS SP-151, along with factory cycle tests.

  Unidirectional Knife Gate Valve - Series 941

Unidirectional Knife Gate Valve SERIES 941

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Size Range
DN50-600
Temperature Range
Buna-N to 90°C; Graphite: to 650°C
90-650°C
Maximum Pressure
10 bar
10 bar
Body Materials
Carbon Steel (WCB), CF8, CF3M, SAF 2507 Duplex
SS CF8M, Carbon WCB
Stem Materials
304 Stainless Steel
Seat Materials
Buna-N, EPDM, Viton®
EPDM, Viton®
Gate Materials
17-4PH, Hastelloy® C, Monel®, Titanium
317 SSl, Hastelloy®
Packing
Energized quad seal packing
Quad seal packing
Body Style
Single piece, Lug
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 The Bray Series 941 Knife Gate Valve offer both metal and soft seating options to provide various unidirectional sealing requirements. Rounded gate edges enable longer packing life and increases valve durability, whether dealing with clean, dirty, corrosive, abrasive, viscous, or high-temperature media.

 Engineered for general-purpose on/off service and isolation, the Series Knife Gate 941 valve offering reliable operation in applications such as paper stock, liquor services, hot gases, mining, petroleum products, process fluids, and chemicals.

 Explore optional enhancements including Gate Guards, Open/Closed Lockouts, Limit Switches, Solenoid Valves, and Fail-Safe Systems.

  Unidirectional Knife Gate Valve - Series 942

Unidirectional Knife Gate Valve SERIES 942

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Size Range
DN100-300
Temperature Range
до 250°C
до 250°C
Maximum Pressure
10 bar
10 bar
Body Materials
CF8M (316) Stainless Steel
CF8M 316 Stainless Steel
Stem Materials
304 Stainless Steel
Seat Materials
Buna-N, EPDM, Viton®
EPDM, Viton®
Gate Materials
17-4PH H-1025
17-4PH H-1025
Packing
HD packing system
HD packing system
Body Style
Single piece, Lug
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 Bray's Series 942 Vortex Breaker Knife Gate Valve is designed to meet the demands of on/off isolation service within pulp and paper recycling and rejection applications. It excels in high-cycle services, where robust shearing capabilities are paramount, particularly in environments with cyclone separators and recycle high-density cleaners.

 The Bray Series 942 Vortex Breaker Knife Gate Valve presents an engineered solution featuring a standard replaceable Vortex Breaker. This feature serves to disrupt cyclonic flow formation, preventing premature gate and body damage and ensuring prolonged operational efficiency and reliability. The Hi-Chrome vortex breaker (500 HB) designed to disrupt cyclonic flow formation of reject materials (staples, wire, nails, sand, etc.) provides extended service life.

 The adaptability of the Bray Series 942 Vortex Breaker Knife Gate Valve spans multiple industry applications. From Knotter to Rejects, Pulpers, HD Cleaners, Cyclone Separators, and Junk Traps.

  Unidirectional Knife Gate Valve - Series 950

Unidirectional Knife Gate Valve SERIES 950

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Size Range
DN 50 to 600
Temperature Range
EPDM: -54 +120°C; Viton®: -26 +200°C
-54°C / +200°C
Maximum Pressure
DN 50 - 300: 10bar; DN 350 - 600: 5bar
5 -10 bar
Body Materials
Carbon Steel (WCB), CF8 Stainless Steel
SS CF8M, Carbon WCB
Stem Materials
304 Stainless Steel
Seat Materials
Buna-N, EPDM, Viton®
EPDM, Viton®
Gate Materials
17-4PH, Hastelloy® C, Monel®
317 SSl, Hastelloy®
Packing
PTFE Impregnated, Synthetic Fiber
PTFE, Synthetic Fiber
Body Style
Single piece, Semi-Lug
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 The Knife Gate Valve Series 950 unidirectional are designed with a single-piece, cast body design housed within a cost-effective semi-lug body. With integral metal or replaceable soft seats, configuration can be tailored to specific application requirements. This customizable feature ensures that the valve seamlessly adapts to different operating conditions, from wastewater treatment plants to mining operations, pulp & paper facilities, and the food & beverage industry.

 Adhering to the highest quality standards, each Series 950 Knife Gate Valve undergoes rigorous testing, including shell and seat tests per MSS SP-151, as well as factory cycle tests. Pressure ratings for our products include Uni-Directional specifications, with 2" – 12" at 150 psi (DI body), 14" – 24" at 75 psi (DI body), and 2" – 24" at 150 psi (steel body). Our approvals and certifications encompass CRN, PED – Category I Module A, and AWWA C520 compliance.