Bidirectional Knife Gate Slurry Valve Series 768 https://www.bray.com/images/default-source/products/knifegate/knifegate-768/vaas768library_thubmnail_03.webp?sfvrsn=ab62801d_1

Bidirectional Knife Gate Valve

Series 768

Size Range
NPS 2 to 24 / DN 50 to 600
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)
Body Style
Two Piece Bolted: Wafer

Specifications

Bidirectional Knife Gate Valve - Series 768

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)
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)
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

Features & Benefits

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.

 

Features

  • 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 allow for safe discharge of media and easy flush water connection.

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