NPS 10″ Class 150 WAFER Rising Stem Bidirectional Knife Gate Valve – CF8M
Description
The NPS 10″ Class 150 WAFER Rising Stem (OS&Y) Bidirectional Knife Gate Valve is a heavy-duty industrial isolation valve engineered by XIAMEN GUTE VALVE MANUFACTURING COMPANY. Built from austenitic stainless steel for superior pitting resistance and immunity to chemical corrosion, this valve features a beveled shearing knife edge and a pocketless full-port bore. It is designed to cleanly slice through fibrous pulp, municipal sewage, and abrasive mineral slurries without clogging or solid accumulation.
Engineering Configuration
NPS 10″ | Class 150 | Bidirectional Knife Gate Valve | CF8M | WAFER Ends | Rising Stem (OS&Y)
- Face-to-Face Length (L): 68 mm (EN 558 Series 20 / MSS SP-81)
- Net Weight: 145 kg
- Stem Configuration: Rising Stem (OS&Y)
- Sealing Performance: API 598 Rate A Soft Seat / MSS SP-81 Metal Seat
- Top Flange: ISO 5211 Standard Actuator Mounting Pad
Rigorous Quality Assurance
- 1. Material Spectro Analysis: 100% PMI verification on all pressure-retaining body castings and gate blades.
- 2. MSS SP-81 Shell Hydrostatic Test: Tested at 1.5x rated working pressure with zero allowable body wall leakage.
- 3. API 598 Seat Leakage Test: 1.1x hydrostatic seat testing ensuring zero bubble/drop leakage for soft seats or <= 40 ml/min/inch for metal seats.
- 4. Actuation Cycling Test: 100% factory stroking and limit switch verification under simulated shop air pressure.
Frequently Asked Technical Questions
A: The split-body design is fully lined with heavy-duty replaceable elastomer sleeves that completely isolate the metal body from high-velocity abrasive mineral slurries and tailings.
A: Conventional wedge gate valves feature a bottom cavity that traps grit. Gute Knife Gate Valves utilize a smooth, cavity-free internal bore that eliminates dead pockets and prevents solid sedimentation.
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Additional information
| Material | |
|---|---|
| Pressure | |
| Valve Size | |
| Connection | |
| Design Standard | ASME Standard |
| Size | NPS 10" |
| Pressure Class | Class 150 |
| Body Material | CF8M |
| End Connection | WAFER |
| Operation | Rising Stem Handwheel |
| Design Structure | Rising Stem + Bi/Unidirectional Gate |
| Manufacturer | XIAMEN GUTE VALVE MANUFACTURING COMPANY |
| Trim / Internals | Beveled Knife Blade + Resilient/Metal Seat |
