Bray – Bidirectional Knife Gate Valve – Series 768
Knife Gate Valves
Bray - Bidirectional Knife Gate Valve - Series 768

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.

Size Range
NPS 2 to 24 / DN 50 to 600
Body MaterialsDuctile Iron, Carbon Steel and Stainless Steel
Maximum Allowable Operating PressureNPS 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)
Stem Materials304 Stainless Steel
Body StyleTwo Piece Bolted: Wafer
Gate Materials304, 316, 317 Stainless Steel, SAF 2507, SAF 2205, 17-4PH, Hastelloy® C, Monel®,
Seat Material Temperature RangeNatural Rubber: -60° to 165°F (-51° to 74°C)
EPDM: -65° to 248°F (-54° to 120°C)
Design StandardManufacturer Standard
Wiper MaterialsEPDM
Testing StandardManufacturer Standard
CertificationsATEX, CRN, PED, PE(S)R, TR CU, UA TR
Face to FaceManufacturer Standard
Actuator OptionsHandwheel, Bevel Gear, Pneumatic, Hydraulic, Electric
ApplicationsSlurry