Qingdao Wivo Valves Co., Ltd.
Qingdao Wivo Valves Co., Ltd.
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Bidirectional Knife Gate Valves
  • Bidirectional Knife Gate ValvesBidirectional Knife Gate Valves

Bidirectional Knife Gate Valves

The Bray Series 740 Bidirectional Knife Gate Valves represent cutting-edge valve technology, designed with a durable one-piece, cast body to provide excellent performance across a wide range of industrial applications. Its replaceable soft seat ensures long-lasting durability and adaptability, ideal for automated systems requiring precise on/off control.


The one-piece body integrates effortlessly with a wire-reinforced elastomer seat, providing bidirectional, zero-leakage shutoff, making it suitable for diverse operational environments. Certified with CRN, compliant with PED Category I Module A, and AWWA C520 standards, the Series 740 surpasses industry expectations. It undergoes extensive testing, including shell and seat testing per MSS SP-151, and is validated through factory cycle tests, further supported by a Certificate of Design Conformance.

The steel-reinforced elastomer seat, mechanically and geometrically retained, ensures a reliable bidirectional, zero-leakage shutoff, optimizing efficiency in industries like Pulp & Paper, Power, Wastewater, Chemical, and Ethanol.

Bray’s Series 740 Knife Gate Valve is renowned for its reliability, versatility, and exceptional performance, making it the preferred choice for demanding industrial applications around the globe.

Bidirectional Knife Gate Valves are designed to provide reliable, tight shutoff in demanding applications across various industries. These valves are specifically engineered to handle the toughest conditions, including slurries, powders, and liquids with solid particulates. With their robust construction and precision design, they ensure reliable operation in both directions, making them ideal for systems where flow direction may change or where tight sealing is essential.


Product Features:

Engineered for seamless and quick transition between manual and pneumatic operation, this valve features an innovative lubricant injection port that guarantees smooth performance with minimal maintenance requirements.

The clevis design, along with horizontal bolting, ensures the gate remains stable and properly aligned throughout operation.

The valve is equipped with standard multi-layer square packing, providing superior gland sealing. For enhanced sealing capabilities, an optional energized quad seal packing is also available.

A wiper/anti-extrusion ring reduces the gap between the gate and the valve body, contributing to more efficient operation.

With a full-port design, the valve offers an unrestricted flow path, resulting in minimal pressure drop and optimal flow characteristics.

The deflection-resistant gate design ensures consistent alignment, offering exceptional durability in demanding industrial environments.

Additionally, the replaceable, flexible wire-reinforced elastomer seat ensures reliable, bidirectional zero-leakage shutoff, making it ideal for critical applications.

Product Parameter (Specification)

Parameter

Description

Valve Type

Bidirectional Knife Gate Valve

Material

Carbon Steel, Stainless Steel, Alloy Steel

Size Range

2” to 36” (or custom sizes available)

Pressure Rating

Up to 150 psi (varies by size and material)

Temperature Range

-20°F to 350°F (-29°C to 177°C)

Flow Path

Full Port, Unrestricted Flow

Seal Type

Replaceable Elastomer Seat, Optional Quad Seal

Actuation

Manual, Pneumatic, Hydraulic

Gland Sealing

Multi-Layer Square Packing, Optional Quad Seal

Body Design

One-Piece Cast Body

Gate Design

Deflection-Resistant, Robust Construction

Leakage

Zero Leakage, Bidirectional Shutoff

Packing Design

Standard Square Packing, Optional Energized Quad Seal

Lubrication

Lubricant Injection Port

Flow Direction

Bidirectional

Applications

Pulp & Paper, Wastewater, Chemical, Mining, Food Processing

Certifications

CRN, PED, AWWA, ISO

Here’s a simplified version ofCustomer Concerns for theBidirectional Knife Gate Valve:

1. Leakage Prevention
Concern: Ensuring zero leakage, especially in high-pressure or abrasive environments.
Solution: The flexible wire-reinforced elastomer seat guarantees bidirectional zero leakage shutoff.

2. Actuation Compatibility
Concern: Easy conversion between manual and automated systems.
Solution: Quick and simple switch between manual and pneumatic actuation.

3. Durability in Harsh Conditions
Concern: Performance and lifespan in demanding applications.
Solution: Deflection-resistant gate design and sturdy one-piece body ensure reliable, long-term use.

4. Maintenance and Downtime
Concern: Minimizing maintenance needs and operational downtime.
Solution: Lubricant injection port for smooth operation and replaceable elastomer seat for reduced maintenance.

5. Effective Sealing
Concern: Ensuring effective sealing, especially for tough materials.
Solution: Multi-layer square packing and optional energized quad seal for enhanced gland sealing.

Certifications and Global Reach

Single Ball Check Valve

Certifications:

CRN: Compliance with Canadian safety standards.

PED Category I: EU pressure equipment safety standards.

AWWA C520: Meets water system valve standards.

ISO 9001: Quality management system certification.

ATEX (optional): For explosive atmospheres.


Global Reach:

North America: U.S. and Canadian markets, including water treatment and power industries.

Europe: Meets PED and AWWA standards for use across EU.

Asia & Pacific: Trusted in mining, wastewater, and chemical industries.

Middle East & Africa: Reliable for oil & gas, water, and chemical sectors.

Contact Us

Whatsapp:+86-15963008926

Email:peter@wovalves.com

To learn more about WIVO VALVES' Bidirectional Knife Gate Valves or for product inquiries and purchases, please feel free to contact us. We look forward to providing you with the best product solutions and an excellent service experience!

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