Product Overview
Optimize reject handling with replaceable vortex breaker and metal seat options
Vortex Breaker Valve for Demanding Industrial Processes
The Bray Series 942 vortex breaker knife gate valve is designed to meet on/off isolation service requirements in pulp and paper recycling and reject applications. In high-cycle service where robust shear capability is critical, particularly in environments using cyclones and high-density recycled cleaners, this series excels.
The Bray Series 942 vortex breaker knife gate valve offers an engineered solution with a standard replaceable vortex breaker. This feature disrupts cyclone formation, preventing premature gate and body damage, and ensuring long-term operational efficiency and reliability. The Hi-Chrome vortex breaker (500 HB) is designed to disrupt the cyclone formed by reject waste (staples, wire, nails, sand, etc.), thereby extending service life. The adaptability of the Bray Series 942 vortex breaker knife gate valve spans multiple industry applications, including knotters to rejects, pulpers, HD cleaners, cyclones, and junk collectors.
Technical Specifications
| Item | Parameter |
|---|---|
| Size Range | NPS 4 to 12 / DN 100 to 300 |
| Maximum Allowable Operating Pressure | 150psi (10 bar) |
| Body Type | One-Piece, Lug |
| Seat Material Temperature Range | Up to 482°F (250°C) |
| Gland Packing Max Temperature | Up to 482°F (250°C) |
| Certifications | CE/PED |
| Actuator Options | Pneumatic |
| Body Material | CF8M (316) Stainless Steel |
| Gate Material | 17-4PH H-1025 |
| Design Standard | MSS SP-81 |
| Face-to-Face Dimension | MSS SP-81 |
| Applications | Pulp and Paper Recycling and Reject: Cyclone, De-knotter, Reject, Pulper, Scavenger, and High Density Cyclone Cleaner |
Features and Benefits
A Topworks
Pneumatic actuator sized and designed for high frequency and heavy media penetration capability.
B Clevis
The clevis design and horizontal bolt retention stabilize the gate, ensuring proper alignment and reducing common knife gate valve failure points.
C Packing
High-performance packing system featuring copper wiper and high-performance packing, designed with machined packing cavity and dynamic load packing gland to ensure extended life cycle and minimize actuator thrust.
D Seat
Integral metal seat design for high cycle life.
E Gate
Wear-resistant 17-4PH H-1025 designed for cutting media such as staples, strapping, plastic, and other types of debris, ensuring full closure.
F Body
Lug-style one-piece stainless steel body.
G Vortex Breaker
The vortex breaker is a replaceable wear component designed to disrupt cyclone formation. Cast high-chrome alloy construction for enhanced performance and extended life cycle. Designed to support media shearing during cycling, such as staples, strapping, plastic, and other types of debris, ensuring the gate can penetrate and cycle to full closed position.
H Wash Port
Wash ports in the seat and cavity area provide sufficient flushing capability during cycling.
I Yoke
Rugged cast yoke superstructure designed for heavy-duty actuators.