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Gate Valve 2 Inch Class 600 Flanged
High-pressure wedge gate valve designed to API 600 standards. Features cast steel WCB body with SS316 gate and seat with weld overlay cladding for superior sealing and extended service life. Handwheel operated for reliable manual control.
Key Specifications
- Size: 2 inch (50mm) NB
- Pressure Class: ASME 600 (Class 600)
- Operation: Manual - Handwheel
- End Connection: Flanged as per ASME B16.5
Design Standards
- Design Code: API 600
- Flange Standard: ASME B16.5
- Testing: API 598
- Face to Face: ASME B16.10
Salient Features
- API 600 design for petroleum & gas service
- Class 600 rating for high-pressure applications
- SS316 gate for excellent corrosion resistance
- Weld overlay cladding on seat for durability
- Flexible wedge design for tight sealing
- Rising stem with position indicator
- ASME B16.5 flanged connections
- Cast steel WCB body construction
- Full bore design for minimal pressure drop
- Bi-directional flow capability
Materials of Construction (MOC)
| Sr. No. | Component | Material | Specification |
|---|---|---|---|
| 01 | Body | Cast Steel | ASTM A216 Grade WCB |
| 02 | Bonnet | Cast Steel | ASTM A216 Grade WCB |
| 03 | Gate (Wedge) | Stainless Steel | SS 316 |
| 04 | Seat Ring | Stainless Steel | SS 316 with Weld Overlay Cladding |
| 05 | Stem | Stainless Steel | SS 316 / ASTM A182 F316 |
| 06 | Backseat | Stainless Steel | SS 316 |
| 07 | Stem Packing | Graphite | Braided graphite rings |
| 08 | Body-Bonnet Gasket | Graphite | Spiral Wound Gasket SS316/Graphite |
| 09 | Bolting | Alloy Steel | ASTM A193 Gr.B7 / A194 Gr.2H |
| 10 | Handwheel | Cast Iron / Ductile Iron | Painted finish |
| 11 | Yoke Nut | Bronze / Ductile Iron | – |
Dimensions (Class 600 - ASME B16.10)
| Parameter | Value | Unit |
|---|---|---|
| Nominal Size | 50 | mm (2 inch) |
| Face to Face (Flanged) | 292 | mm |
| Flange OD | 165.1 | mm |
| Bolt Circle Diameter (PCD) | 127.0 | mm |
| Number of Bolts | 8 | nos |
| Bolt Hole Diameter | 19.1 | mm |
| Flange Thickness | 31.8 | mm |
| Raised Face Height | 6.4 | mm |
| Bore ID | 49.3 | mm |
| Overall Height (Open) | ~450 | mm (approx) |
Dimensions as per ASME B16.10 Class 600. Tolerance: ±3mm.
Technical Specifications
| Parameter | Specification |
|---|---|
| Valve Type | Gate Valve (Flexible Wedge) |
| Size | 2 inch (50mm) 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 | Manual - Handwheel |
| Stem Type | Rising Stem, Outside Screw & Yoke (OS&Y) |
| Bonnet Type | Bolted |
| Port Type | Full Bore |
| Flow Direction | Bi-directional |
| Seat Type | Metal to Metal (SS316 with Weld Overlay) |
| Leakage Class | Class IV (Metal Seated) |
| Design Code | API 600 |
| Testing Standard | API 598 |
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 |
| Backseat Test | 112 | 1628 | Water |
Applications
- Oil & Gas Pipelines
- Petrochemical Plants
- Power Generation
- Chemical Processing
- Water Treatment
- Marine Applications
- Process Industries
- HVAC Systems
Frequently Asked Questions
What is API 600 design standard?
API 600 is an American Petroleum Institute standard that covers steel gate valves with flanged or butt-welding ends for petroleum and natural gas industries. It specifies design, materials, dimensions, and testing requirements.
What is the advantage of weld overlay cladding on the seat?
Weld overlay cladding provides a hard, wear-resistant surface on the seat that improves sealing performance and extends valve life, especially in services with erosive or corrosive media.
Is this valve suitable for high-pressure service?
Yes, this Class 600 gate valve is rated for high-pressure service up to 102 bar (1480 PSI) at ambient temperature, making it suitable for demanding industrial applications.
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