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Knife Gate Valve 250mm Class 600 Hydraulic Actuated
Heavy-duty knife gate valve designed for demanding industrial applications. Features hydraulic actuation for precise control, CS GR.460 body construction, and SS304 stainless steel internals for superior corrosion resistance.
Key Specifications
- Size: 250mm (10 inch) NB
- Pressure Class: ASME 600 (Class 600)
- Actuation: Hydraulic
- End Connection: Flanged as per ASME B16.5
Design Standards
- Specification: MD-101-SMEM-EG-PI-SPC-0004
- Flange Standard: ASME B16.5
- Testing: API 598 / BS 6755 Part-I
Salient Features
- Hydraulic actuated for remote and automated operation
- Class 600 rating for high-pressure applications
- SS304 gate disc for excellent corrosion resistance
- Knife-edge design for cutting through slurries and viscous media
- ASME B16.5 flanged connections for easy installation
- Robust carbon steel body (CS GR.460)
- Full bore design for minimal pressure drop
- Bi-directional sealing capability
Materials of Construction (MOC)
| Sr. No. | Component | Material | Specification |
|---|---|---|---|
| 01 | Body | Carbon Steel GR.460 | High strength structural steel |
| 02 | Gate Disc | SS 304 | ASTM A240 Type 304 |
| 03 | Spindle | SS 304 | ASTM A276 Type 304 |
| 04 | Carrier | Carbon Steel GR.460 | High strength structural steel |
| 05 | Bonnet | Carbon Steel GR.460 | High strength structural steel |
| 06 | Connecting Flanges | Forged Steel | ASTM A105 |
| 07 | Packing | Graphite | Braided graphite rings |
| 08 | Bolting | Alloy Steel | ASTM A193 Gr.B7 / A194 Gr.2H |
| 09 | Hydraulic Actuator | Steel/Aluminum | As per manufacturer standard |
Dimensions (Class 600 - ASME B16.5)
| Parameter | Value | Unit |
|---|---|---|
| Nominal Size | 250 | mm (10 inch) |
| Face to Face (Short Pattern) | 292 | mm |
| Flange OD | 444.5 | mm |
| Bolt Circle Diameter (PCD) | 387.4 | mm |
| Number of Bolts | 16 | nos |
| Bolt Hole Diameter | 34.9 | mm |
| Flange Thickness | 63.5 | mm |
| Raised Face Height | 6.4 | mm |
| Bore ID | 247.7 | mm |
Dimensions as per ASME B16.5 Class 600. Tolerance: ±3mm. Custom dimensions available on request.
Technical Specifications
| Parameter | Specification |
|---|---|
| Valve Type | Knife Gate Valve |
| Size | 250mm (10 inch) NB |
| Pressure Rating | ASME Class 600 (PN 100) |
| Design Pressure | 102 bar @ 38°C |
| Temperature Range | -29°C to +425°C |
| End Connection | Flanged (RF) as per ASME B16.5 |
| Operation | Hydraulic Actuator |
| Flow Characteristic | Full Bore, Bi-directional |
| Seat Type | Metal to Metal |
| Leakage Class | Class IV (Metal Seated) |
| Testing Standard | API 598 / BS 6755 Part-I |
| Face to Face | As per ASME B16.10 |
Test Pressure
| Test Type | Pressure (bar) | Pressure (PSI) | Medium |
|---|---|---|---|
| Shell / Body Test (Hydrostatic) | 153 | 2220 | Water |
| Seat Test (Hydrostatic) | 112 | 1628 | Water |
| Seat Test (Pneumatic) | 7 | 100 | Air |
Applications
- Mining & Mineral Processing
- Slurry Handling Systems
- Wastewater Treatment
- Power Generation
- Oil & Gas Industry
- Chemical Processing
- Pulp & Paper Industry
- Cement & Steel Plants
Frequently Asked Questions
What is the pressure rating of this Knife Gate Valve?
This Knife Gate Valve is rated for ASME Class 600, suitable for high-pressure applications up to 1480 PSI (102 bar) at ambient temperature.
What materials are used in this valve?
The body, carrier, and bonnet are made from Carbon Steel GR.460. The gate disc and spindle are SS304 stainless steel for corrosion resistance. Flanges are ASTM A105 forged steel.
What type of actuation does this valve use?
This valve uses hydraulic actuation for precise control and high force output, ideal for remote operation and automated systems.
What media can this valve handle?
The knife-edge design makes it suitable for slurries, viscous fluids, powder, granules, and fibrous materials. The SS304 internals provide corrosion resistance for various chemicals.
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