Durable Unidirectional Valves for Heavy-Duty Industrial Needs
The Knife Gate Valve Series 950 unidirectional are designed with a single-piece, cast body design housed within a cost-effective semi-lug body.With integral metal or replaceable soft seats, configuration can be tailored to specific application requirements. This customizable feature ensures that the valve seamlessly adapts to different operating conditions, from wastewater treatment plants to mining operations, pulp & paper facilities, and the food & beverage industry.Adhering to the highest quality standards, each Series 950 Knife Gate Valve undergoes rigorous testing, including shell and seat tests per MSS SP-151, as well as factory cycle tests. Pressure ratings for our products include Uni-Directional specifications, with 2" – 12" at 150 psi (DI body), 14" – 24" at 75 psi (DI body), and 2" – 24" at 150 psi (steel body).Our approvals and certifications encompass CRN, PED – Category I Module A, and AWWA C520 compliance. Explore optional features like Gate Guards, Deflection Cone, Open/Closed Lockouts, Limit Switches, Solenoid Valves, and Fail-Safe Systems for enhanced functionality.
Specification / Detail
| 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 |
| 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 |

