1. Product Overview
Slab gate valves are mainly used for medium opening, shutoff, and flow-direction control in pup joints and well-control equipment, suitable for drilling well-control systems and various high-pressure manifolds.
The product can be used in kill manifolds, choke manifolds, mud manifolds, standpipe manifolds, high-pressure drilling fluid manifolds, and other systems, serving as an important valve for wellhead and manifold process control.
Common structures include rising-stem and non-rising-stem types. Operation can be manual or hydraulic to meet different field process and control requirements.
2. Design Features
The flow path uses a straight-through structure with a smooth bore, low flow resistance, and lower opening torque under pressure.
End connections include flanged, threaded, and union connections for convenient matching with high-pressure manifold systems.
The slab and seat use wear-resistant treatment to improve sealing performance and service life.
The valve body is an integral forging with high structural strength and stable pressure-bearing performance.
The compact structure and easy operation make it suitable for wellsite high-pressure flow-control systems.
3. Slab Gate ValveMain Technical Parameters
Rising-Stem Slab Gate Valve:
Working Pressure：5,000 psi～15,000 psi
Nominal Bore：2 1/16″～4 1/16″
Temperature Class：-29 ℃～121 ℃ (PU class)
Material Class: DD to EE
Manufacturing Standard：API 6A & NACE MR0175
| Model | Specification | Working Pressure | Overall Dimensions（mm） | Ring Gasket Specification | ||
|---|---|---|---|---|---|---|
| 2 1/16" API 6A Flanged, 5,000 psi, Rising Stem | 2 1/16″-5,000 psi | 5,000 psi | 371 | 340 | 525 | R24 |
| 2 1/16" API 6A Flanged, 10,000 psi, Rising Stem | 2 1/16″-10,000 psi | 10,000 psi | 521 | 340 | 825 | BX152 |
| 2 1/16" API 6A Flanged, 15,000 psi, Rising Stem | 2 1/16″-15,000 psi | 15,000 psi | 483 | 340 | 765 | BX152 |
| 2 9/16" API 6A Flanged, 5,000 psi, Rising Stem | 2 9/16″-5,000 psi | 5,000 psi | 422 | 340 | 764 | R27 |
| 2 9/16" API 6A Flanged, 10,000 psi, Rising Stem | 2 9/16″-10,000 psi | 10,000 psi | 565 | 340 | 830 | BX153 |
| 2 9/16" API 6A Flanged, 15,000 psi, Rising Stem | 2 9/16″-15,000 psi | 15,000 psi | 533 | 365 | 810 | BX153 |
| 3 1/8" API 6A Flanged, 5,000 psi, Rising Stem | 3 1/8″-5,000 psi | 5,000 psi | 473 | 380 | 905 | R35 |
| 3 1/16" API 6A Flanged, 10,000 psi, Rising Stem | 3 1/16″-10,000 psi | 10,000 psi | 620 | 393 | 979 | BX154 |
| 3 1/16" API 6A Flanged, 15,000 psi, Rising Stem | 3 1/16″-15,000 psi | 15,000 psi | 598 | 425 | 1031 | BX154 |
| 4 1/16" API 6A Flanged, 5,000 psi, Rising Stem | 4 1/16″-5,000 psi | 5,000 psi | 550 | 340 | 1050 | R39 |
| 4 1/16" API 6A Flanged, 10,000 psi, Rising Stem | 4 1/16″-10,000 psi | 10,000 psi | 670 | 452 | 1120 | BX155 |
| 4 1/16" API 6A Flanged, 15,000 psi, Rising Stem | 4 1/16″-15,000 psi | 15,000 psi | 730 | 512 | 1222 | BX155 |
Non-Rising-Stem Slab Gate Valve:
Working Pressure：5,000 psi～15,000 psi
Nominal Bore：2 1/16″～4 1/16″
Temperature Class：-29 ℃～121 ℃ (PU class)
Material Class: DD to EE
Manufacturing Standard：API 6A & NACE MR0175
| Model | Specification | Working Pressure | Overall Dimensions（mm） | Ring Gasket Specification | ||
|---|---|---|---|---|---|---|
| 2 1/16" API 6A Flanged, 5,000 psi, Rising Stem | 2 1/16″-5,000 psi | 5,000 psi | 371 | 144 | 459 | R24 |
| 2 1/16" API 6A Flanged, 10,000 psi, Rising Stem | 2 1/16″-10,000 psi | 10,000 psi | 521 | 149 | 584 | BX152 |
| 2 1/16" API 6A Flanged, 15,000 psi, Rising Stem | 2 1/16″-15,000 psi | 15,000 psi | 483 | 149 | 584 | BX152 |
| 2 9/16" API 6A Flanged, 5,000 psi, Rising Stem | 2 9/16″-5,000 psi | 5,000 psi | 422 | 151 | 602 | R27 |
| 2 9/16" API 6A Flanged, 10,000 psi, Rising Stem | 2 9/16″-10,000 psi | 10,000 psi | 565 | 184 | 628 | BX153 |
| 2 9/16" API 6A Flanged, 15,000 psi, Rising Stem | 2 9/16″-15,000 psi | 15,000 psi | 533 | 184 | 628 | BX153 |
| 3 1/8" API 6A Flanged, 5,000 psi, Rising Stem | 3 1/8″-5,000 psi | 5,000 psi | 473 | 183 | 572 | R35 |
| 3 1/16" API 6A Flanged, 10,000 psi, Rising Stem | 3 1/16″-10,000 psi | 10,000 psi | 620 | 190 | 622.4 | BX154 |
| 3 1/16" API 6A Flanged, 15,000 psi, Rising Stem | 3 1/16″-15,000 psi | 15,000 psi | 598 | 190 | 622.4 | BX154 |
| 4 1/16" API 6A Flanged, 5,000 psi, Rising Stem | 4 1/16″-5,000 psi | 5,000 psi | 550 | 293 | 756 | R39 |
| 4 1/16" API 6A Flanged, 10,000 psi, Rising Stem | 4 1/16″-10,000 psi | 10,000 psi | 670 | 295 | 800 | BX155 |
| 4 1/16" API 6A Flanged, 15,000 psi, Rising Stem | 4 1/16″-15,000 psi | 15,000 psi | 737 | 300 | 850 | BX155 |
4. Slab Gate ValveRepair Kit
Rising-Stem Slab Gate Valve Repair Kit:
① Inner seal-ring washer 2
② Seal ring 2
③ Outer seal-ring washer 1
④ Slab 1
⑤ Seat and seal ring 4
⑥ Rectangular seal ring or wave spring 2
Non-Rising-Stem Slab Gate Valve Repair Kit:
① Lip seal ring assembly 1
② Washer 1
③ Slab 1
④ Seat 2
⑤ O-ring 4
⑥ Wave spring 2
