The Series 950 unidirectional knife gate valves feature a single piece, cast body design offers rugged performance in applications ranging from general purpose to severe media handling in an economical semi-lug body. Available with integral metal or replaceable soft seat, the Bray Series 950 gate valve is easily automated for on/off applications.
Unidirectional Knife Gate Valve
Series 950
Size Range
NPS 2 to 24 / DN 50 to 600
Maximum Allowable Operating Pressure
NPS 2 to 12: 150psi / DN 50 to 300: 10bar
NPS 14 to 24: 75psi / DN 350 to 600: 5bar
NPS 14 to 24: 75psi / DN 350 to 600: 5bar
Body Style
Single Piece, Wafer, Semi-Lug
Specifications
Unidirectional Knife Gate Valve - Series 950
Size Range
NPS 2 to 24 / DN 50 to 600
Body Materials
Carbon Steel (WCB), CF8 Stainless Steel, CF8M Stainless Steel, CF3M Stainless Steel, SAF 2205, SAF 2507
Maximum Allowable Operating Pressure
NPS 2 to 12: 150psi / DN 50 to 300: 10bar
NPS 14 to 24: 75psi / DN 350 to 600: 5bar
NPS 14 to 24: 75psi / DN 350 to 600: 5bar
Stem Materials
304 Stainless Steel
Body Style
Single Piece, Wafer, Semi-Lug
Gate Materials
304, 316, 317 Stainless Steel, SAF 2507, SAF 2205, 17-4PH, Hastelloy® C, Monel®
Seat Material Temperature Range
Buna-N: -34 to 194°F (-36 to 90°C), EPDM: -65 to 248°F (-54 to 120°C) Viton®: -15 to 392°F (-26 to 200°C), PTFE/Viton Back-up Ring: -235 to 392°F (-148 to 200°C)
Design Standard
MSS SP81
Packing Maximum Temperature
PTFE: 500°F (260°C), Impregnated PTFE: 450°F (232°C), PTFE/Buna-N: 194°F (90°C), PTFE/Viton®: 392°F (200°C), PTFE/EPDM: 248°F (120°C)
Testing Standard
MSS SP151
Certifications
ATEX, AWWA C520 (2019), CRN, PED, PE(S)R, TR CU, UA TR
Face to Face
MSS SP81
Actuator Options
Handwheel, Bevel Gear, Pneumatic, Hydraulic, Electric
Applications
Wastewater, Power, General Industrial, Chemical, Mining, Food & Beverage, Pulp & Paper
Features & Benefits
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A. Topworks
Topworks designed for easy, quick conversion between manual and pneumatic actuation. Manual valves include a lubricant injection port for continuous, smooth operation with minimal maintenance.
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B. Clevis
Clevis design and horizontal bolting stabilizes gate ensuring proper alignment.
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C. Packing (standard)
Standard multi-layer square packing provides exceptional gland sealing.
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D. Packing (optional)
Optional energized quad seal packing for enhanced gland sealing.
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E. Seat
Standard integral metal seat and optional replaceable zero leakage resilient seats.
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F. Gate
Gate design ensures consistent alignment throughout the length of the stroke.
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G. Body
Unique body design with no dead pockets enables self-draining of valve.