Series 941 Unidirectional Knife Gate Valve Product Image
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Unidirectional Knife Gate Valve Series 941

Bray Series 941 unidirectional knife gate valve offers metal and soft seat options, radiused gate edge extends packing life, suitable for on-off and isolation applications for high-temperature and viscous media

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Product Overview

Metal and soft seat options for unidirectional sealing requirements

Reliable Isolation for High-Temperature and Viscous Applications

The Bray Series 941 knife gate valve offers both metal and soft seat options to meet various unidirectional sealing requirements. Whether handling clean, dirty, corrosive, abrasive, viscous, or high-temperature media, the radiused gate edge extends packing life and improves valve durability. The Series 941 knife gate valve is designed for general on-off and isolation applications, providing reliable operation in stock storage, liquor, hot gas, mining, petroleum products, process fluids, and chemicals. Explore optional enhancements including gate protection, open/close locking, limit switches, solenoid valves, and fail-safe systems.

Technical Specifications

ItemParameter
Size RangeNPS 2 to 24 / DN 50 to 600
Body MaterialCarbon Steel (WCB), CF8 Stainless Steel, CF8M Stainless Steel, CF3M Stainless Steel, SAF 2205 Duplex, SAF 2507 Duplex
Maximum Allowable Operating Pressure150psi (10 bar)
Body TypeOne-Piece, Lug
Gate Material304 - 316 - 317 Stainless Steel, SAF 2507 Duplex, 17-4PH, Hastelloy® C, Monel®, Titanium
Design StandardMSS SP81
Test StandardMSS SP151
CertificationsATEX, CRN, PED, PE(S)R, TR CU, UA TR
Face-to-Face DimensionMSS SP81
Actuator OptionsHandwheel, Bevel Gear, Pneumatic, Hydraulic, Lever, Electric

Features and Benefits

A Topworks

The actuator design supports simple and quick conversion between manual and pneumatic operation. Manual valves include a lubricant injection port for continuous, smooth operation with minimal maintenance.

B Clevis

The clevis design and horizontal bolt retention stabilize the gate, ensuring proper alignment.

C Packing

Standard energized star-seal packing enhances gland sealing.

D Seat

Standard integral metal seat and optional replaceable zero-leakage resilient seat.

E Gate (Design)

Gate design ensures consistent alignment throughout the full stroke length.

F Gate (Durability)

Radiused gate edge design extends packing service life and improves valve durability.

G Body

Unique body design with no dead legs allows the valve to drain automatically.

H Installation

Lug body is suitable for all installation orientations, including dead-end service.

I Yoke

Cast yoke superstructure ensures rugged valve design, compatible with different operators and orientations.

FAQ

What media and operating conditions is the Bray Series 941 unidirectional knife gate valve suitable for?

The Series 941 is designed for general on-off and isolation applications, handling clean, dirty, corrosive, abrasive, viscous, and high-temperature media. Typical applications include stock storage, liquor, hot gas, mining, petroleum products, process fluids, and chemicals. Specific seat, body, and gate materials should be confirmed based on media characteristics and application conditions.

How does the Series 941 meet isolation requirements for high-temperature or viscous media?

This series offers a one-piece metal seat and an optional replaceable zero-leakage resilient seat for different unidirectional sealing requirements. The radiused gate edge helps extend packing life, and the energized star seal packing enhances gland sealing and valve durability.

What pressure ratings, size ranges, and actuation options are available for the Bray Series 941?

Size range is NPS 2 to 24, DN 50 to 600. Maximum allowable working pressure is 150 psi (10 bar). Actuation options include handwheel, bevel gear, pneumatic, hydraulic, lever, and electric. Specific configuration should be confirmed based on actual model and application conditions.

What are the installation orientation and line-end application features of the Series 941 knife gate valve?

The Series 941 uses a lug-type body design suitable for all installation orientations, including line-end applications. The body structure has no dead pipe sections, facilitating automatic valve drainage. The clevis and horizontal bolt retention structure stabilize the gate and maintain proper alignment.

What areas should be focused on during routine maintenance of the Bray Series 941?

Key focus areas include packing seal, gate alignment, and actuator operation status. Manual valves include a lubrication injection port to support continuous, smooth operation and reduce maintenance requirements. For pneumatic, electric, or other actuation methods, check optional components such as limit switches, solenoid valves, and fail-safe systems based on actual configuration.

Documents

Product Brochure - Unidirectional Knife Gate Valve Series 941Product information · EnglishProduct Brochure - Knife Gate Valve and Slurry Valve Product GuideProduct information · EnglishProduct Guide - Válvulas de Cuchilla - Guía de ProductosProduct information · EnglishIOM Manual - Unidirectional Knife Gate Valve Series 941Manual · EnglishSales Data Sheet - Válvulas de Cuchilla Unidireccionales Conos DeflectoresProduct information · EnglishSales Data Sheet - Unidirectional Knife Gate Valve Centrifugal DischargeProduct information · EnglishRecommended Specification - Series 941 Unidirectional Knife Gate ValveProduct information · English

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