Bidirectional Knife Gate Valve

Series 752/752HP

Maximum Isolation. Minimum Maintenance. Unmatched Durability for Severe Service

Series 752 family
Series 752/752hp
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Series 752HP

Series 752/752HP : Engineered for Durability and Precision

Severe Service Valve Engineered for Demanding Industrial Applications

The Bray Series 752/752HP Bidirectional Knife Gate Valve is an engineered solution designed for severe service applications requiring precise and reliable isolation 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. In abrasive applications, the optional polyurethane or chrome iron bore liners offer true body protection by extending thru the entire flow passage.

 

 

With a diverse range of actuator options including Direct Mounted Handwheel, Bevel Gear, Pneumatic, Hydraulic, and Electric, addresses a variety of operational requirements. Primarily utilized in Mining, Power, and Chemical industries, the Series 752/752HP demonstrates excellence in severe service knife gate valve technology, delivering superior performance, durability, and adaptability.

Specifications

Size Range
NPS 2 to 24 | DN 50 to 600
Body Materials
Carbon Steel (WCB) | CF8 Stainless Steel
CF3 Stainless Steel | CF3M Stainless Steel | CE3MN
Duplex Steel (SS 2507) | CD3MN Duplex
Maximum Allowable Operating Pressure
Series 752: 232 psi | 16 bar
Series 752HP: 290 psi | 20 bar
Stem Materials
304 Stainless Steel
Body Style
Two-piece bolted (wafer)
Seat Material Temperature Range
Buna-N: -35°F to 194°F (-37°C to 90°C)
EPDM: -65°F to 248°F (-54°C to 120°C)
Viton®: -15°F to 392°F (-26°C to 200°C)
Gate Materials
304, 316, 317 Stainless Steel
SAF 2507 Duplex
SAF 2205 Duplex
17-4PH Stainless Steel
Hastelloy® C
Monel®
Alloy 20
Design Standard
Series 752: Manufacturer Standard
Series 752HP: MSS SP-135
Packing Maximum Temperature
PTFE impregnated synthetic fiber: 232°C /450°F
PTFE w/EPDM Quad Seal: 90°C/194°F
PTFE w/Viton® Quad Seal: 200°C/392°F
Testing Standard
MSS SP-151
Certifications
Canadian CRN
Face to Face
Series 752: MSS SP-81
Series 752HP: MSS SP-135
Actuator Options
Handwheel, Bevel Gear, Pneumatic, Hydraulic, Electric

Downloads

Sales Data Sheet
Series 752/752HP Bidirectional Knife Gate Valves

Technical Sales Manual
Series 752/752HP Bidirectional Knife Gate Valves

Product Brochure
Bidirectional Knife Gate Valves Series 752

Product Brochure
Knife Gate And Slurry Valves Product Guide

IOM Manual
Series 752/752HP Bidirectional Knife Gate Valves

More Details

Features & Benefits

  • Pressure Ratings of 232 psi (16 bar) and 290 psi (20 bar), accommodating a wide spectrum of industrial applications.

 

  • Series 752HP compliant with MSS SP-135 and ASME B16.34 standards, ensuring seamless compatibility and integration within piping systems.

 

  • Configured in a two-piece bolted wafer design, optimizing space utilization and offering installation flexibility.

 

  • Replaceable steel-reinforced molded seats extend cycle life and reduce total cost of ownership.

 

  • Unrestricted flow path with minimal pressure drop achieved through full port valve design.

 

  • Deflection resistant gate design ensures consistent alignment for industry leading durability.

 

  • Optional polyurethane or chrome iron bore liners extend service life in abrasive services.

 

  • Packing Options: PTFE impregnated synthetic fiber, PTFE w/Buna-N Quad Seal, PTFE w/Viton® Quad Seal. 
752

Series 752

  • A. Topworks

    Designed for easy, quick conversion between manual and pneumatic actuation. Featuring a lubricant injection port for continuous, smooth operation with minimal maintenance.

  • B. Clevis

    Clevis design and horizontal bolting stabilizes gate ensuring proper alignment.

  • C. Packing (standard)

    Standard multi-layer square packing provides exceptional gland sealing.

  • D. Packing (optional)

    Optional energized quad seal packing for enhanced gland sealing.

  • E. Unrestricted Flow Path

    Unrestricted flow path with minimal pressure drop achieved through full port valve design.

  • F. Gate

    Deflection resistant gate design ensures consistent alignment for industry leading durability.

  • G. Seat

    Replaceable steel reinforced elastomer seat ensures bidirectional zero leakage shutoff.

  • H. Body

    Two piece bolted body for easy maintenance and seat replacement.

Series 752hp

Series 752HP

  • A. Reinforced U-Seal Seat

    Precision molded seal and best-in-class elastomer formulations offer proven cycle life with bi-directional zero leakage.

  • B. Beveled Gate Edge

    Cuts through the flow and pushes solids aside, while the flush seat eliminates media build up in a dead pocket. The seat design provides positive isolation without purging.

  • C. Unrestricted Flow Path

    Minimal pressure drop achieved through full port valve design. Optional polyurethane or chrome iron bore liners protect the valve body and extend service life.

  • D. Clevis Design And Horizontal Bolting

    Stabilizes gate ensuring proper alignment.

  • E. Heavy Duty Yoke, Stem, And Bellows

    Standard on 752HP configuration to meet the toughest site conditions.

  • F. Standard Energized Quad Seal Packing

    Multi-layered PTFE provides exceptional gland sealing around gate and reduces the frequency of maintenance compared to PTFE packing alone.

  • G. Guided Deflection-Resistant Gate Design

    Ensures consistent alignment and smooth operation for industry leading durability.

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