Manual Slab Gate Valve, 3-1/16 in × 10M Flanged, 15,000 psi, API 6A PSL 3G PR2, HH Inconel 625 Cladded

The Manual Slab Gate Valve, 3-1/16 in × 10M Flanged, 15,000 psi, API 6A PSL 3G PR2, HH Inconel 625 Cladded is rated for 15,000 psi working pressure (15K class) per API 6A PSL 3G, PR2, material class HH. Manually-operated handwheel. Rising-stem indicator confirms position. Lockable in either fully-open or fully-closed state.

Slab-gate design: a single-piece slab gate that translates linearly through the bore — simpler than the more common expanding-gate (split-wedge) variant. Lower part count, easier to refurbish in the field, and proven for high-cycle service. The Inconel 625 hard-faced trim resists erosion in sand-laden flow and stress-corrosion cracking in severe sour service.

Construction

• Type: Gate — Slab — Manual
• Nominal size: 3-1/16 in
• Bore: Full Port
• Body material: Forged AISI 4130 with Inconel 625 internal cladding (HH)
• Trim material: Inconel 625 cladded gate + Inconel 625 overlay seats
• Seal / elastomer: PEEK back-up + FFKM primary seals (high-temp)
• Inlet: 3-1/16 in API 6A 10M Flanged (RTJ)
• Outlet: 3-1/16 in API 6A 10M Flanged (RTJ)

Performance

Working pressure 15,000 psi. Bidirectional flow with metal-to-metal seat seal. Hydrotested at 1.5× working pressure (shell test) and seat-tested per API 6A acceptance criteria. NACE MR0175 / ISO 15156 sour-service compliant — H₂S-rated trim and elastomers.

Applications

• Severe sour-gas wellheads
• HPHT Christmas trees (HH-grade)
• Sour-gas processing inlet headers
• High-cycle production trees (slab design)

Compliance

• API 6A PSL 3G PR2
• Material class HH (API 6A chemistry / sour-service grading)
• NACE MR0175 / ISO 15156 (sour-service)
• Mill test reports per EN 10204 3.1 / 3.2
• API monogram traceability on body and trim

How to order

Confirm (a) line working pressure and pressure class, (b) inlet and outlet end-connection sizes / styles (5M / 10M / 15M flanges, or other), (c) service class (standard vs sour vs HF), (d) actuator mode for hydraulic variants (FC, FLS, or manual override option), (e) any special trim (Inconel 625, Stellite, F22) or temperature class (PR1 / PR2 / PR2F fire-tested) requirements. Indus quotes ex-works with full mill test reports, sour-service certificates where applicable, and pre-shipment hydrostatic / shell test certificates.

Companion products

Pair with matched-pressure check valves, ball valves, and SSV/ESDs of the same flange class to build a complete wellhead service tree or Christmas tree. For hydraulic-actuated trains, integrate with a hydraulic control panel sized to the dome volumes and intervention timings. Indus also supplies API 6A studs, gaskets (R/RX/BX ring-joint), and instrumentation tap-offs to specification.