Heavy-Duty Pipeline Isolation
Gate Valves
Rising-stem and slab-gate designs engineered for full-bore isolation across severe pipeline service — from forged 800# instrumentation to 2500# pressure-seal construction.
API 602API 600API 6DASME B16.34MSS-SP-81
Key features
Design highlights
- OS&Y design (Wedge & Slab)
- Rising stem construction
- Stellite #6 hardfacing
- Flexible wedge technology
Operational advantages
Field performance
- Low pressure drop, minimal turbulence at full-open
- Excellent for high-pressure isolation
- Reliable in severe service, cost-effective
Technical specifications
Manufacturing range
| Type / Rating | MOC (Body/Seat/Trim) | Mfd Std | Size Range | End Conn. | Hydro Body | Hydro Seat | Air Test |
|---|---|---|---|---|---|---|---|
| Forged Gate — 800# | A105, F316L, F11 | API 602 | 1/2" — 2" | SW / NPT / BW | 3000 psig | 2200 psig | 7 kg/cm² |
| Forged Gate — 1500# | A105, F316L, F22 | API 602 | 1/2" — 2" | SW / BW | 5400 psig | 3960 psig | 7 kg/cm² |
| Flexible Wedge — 150# | WCB, CF8, CF8M | API 600 | 2" — 36" | RF / BW | 425 psig | 315 psig | 7 kg/cm² |
| Solid Wedge — 300# | WCB, CF8, CF8M | API 600 | 2" — 36" | RF / BW | 1125 psig | 825 psig | 7 kg/cm² |
| Solid Wedge — 600# | WCB, CF8, CF8M | API 600 | 2" — 24" | RF / RTJ / BW | 2225 psig | 1630 psig | 7 kg/cm² |
| Slab Gate — 900# | WCB, LCB, CF8M | API 6D | 2" — 24" | RTJ / BW | 3350 psig | 2450 psig | 7 kg/cm² |
| Pressure Seal — 2500# | C12A, F91, WC9 | API 600 | 2" — 12" | RTJ / BW | 9275 psig | 6790 psig | 7 kg/cm² |
| Knife Gate Valve | CI, WCB, SS316 | MSS-SP-81 | 2" — 24" | Wafer / Lug | 150 psig | 110 psig | 7 kg/cm² |
Inspection & test: 100% in-house hydrostatic and pneumatic testing for body and seat per API 598. All valves undergo rigorous dimensional verification and material traceability protocols.
Bespoke engineering: non-standard sizes, grades and pressure classes are available on request. Custom material and body/end configurations produced on project basis.