Bidirectional Knife Gate Valve
Series 768
Heavy-Duty Solution for High-Pressure Slurry Handling Applications
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Replaceable Sleeves Ensure Quick Maintenance and Durability
Engineered for Long Service Life in Demanding Conditions
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.The Knife Gate Valve Series 768 provide a guarantee in design and performance, providing effectiveness in heavy-duty slurry handling applications is such as mining, HPAL/POX, Chemical among other industries.
Specifications
Size Range
NPS 2 to 24 / DN 50 to 600
Body Materials
Ductile Iron, Carbon Steel and Stainless Steel
Maximum Allowable Operating Pressure
NPS 2 to 16: 150psi / DN 50 to 400: 10bar
NPS 18 to 24: 90psi / DN 450 to 600: 6.2bar
(Higher pressures available with select materials)
NPS 18 to 24: 90psi / DN 450 to 600: 6.2bar
(Higher pressures available with select materials)
Stem Materials
304 Stainless Steel
Body Style
Two Piece Bolted: Wafer
Gate Materials
304, 316, 317 Stainless Steel, SAF 2507, SAF 2205, 17-4PH, Hastelloy® C, Monel®,
Seat Material Temperature Range
Natural Rubber: -60° to 165°F (-51° to 74°C)
EPDM: -65° to 248°F (-54° to 120°C)
EPDM: -65° to 248°F (-54° to 120°C)
Design Standard
Manufacturer Standard
Wiper Materials
EPDM
Testing Standard
Manufacturer Standard
Certifications
ATEX, CRN, PED, PE(S)R, TR CU, UA TR
Face to Face
Manufacturer Standard
Actuator Options
Handwheel, Bevel Gear, Pneumatic, Hydraulic, Electric
applications
Slurry
Downloads
Sales Data Sheet
Slurryshield® Bidirectional Heavy Duty Slurry Valves 768
Download
English
Product Brochure
Series 768 Bray Slurryshield Bidirectional Knife Gate Valve
Download
English
Product Brochure
Knife Gate And Slurry Valves Product Guide
Download
English
IOM Manual
Series 768 Bray Slurryshield Bidirectional Knife Gate Valve
Download
English
Recommended Specs
Bidirectional Knife Gate Series 768 Wafer Slurry Valve
Download
English
More Details
Features & Benefits
- Protective stem cover is standard increasing cycle life in hazardous environments.
- Fully encapsulated J-ring providing sleeve reinforcement and memory assist, guaranteeing bidirectional zero leakage performance.
- In the open position, the energized sleeves shield all metal components from direct contact with the flowing process media.
- Robust gate designed for slurry applications and available in a wide range of corrosion resistant alloys.
- Full port design provides unobstructed flow path, extending sleeve life and minimizing pressure drop across the valve.
- Two-piece bolted body allows for easy maintenance and is drilled and tapped to a variety of flange standards.
- Optional bottom flush plate with tapped ports allows for safe discharge of media and easy flush water connection.
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