Tubing Head, API 6BX 10K, Sour Service

The Tubing Head, API 6BX 10K, Sour Service is an tubing head for upstream oil and gas wellhead service, 10K class (10,000 psi working pressure), sour (nace mr0175) rated. NACE MR0175 / ISO 15156 sour-service compliant — body, trim, ring grooves, and bolting selected to the H₂S-rated material class.

Construction

• Component: Tubing Head
• Nominal size: 11 in × 2-9/16 in / 3-1/16 in tubing
• Vertical through-bore: 2-9/16 in / 3-1/16 in
• Top connection: API 6BX 10K studded flange — sour-service ring groove (BX-158, NACE)
• Bottom connection: API 6BX 10K studded flange — NACE-compliant studs and nuts
• Body material: Forged alloy steel (AISI 4130) — NACE MR0175 hardness controlled
• Material class: EE (API 6A)
• Temperature class: P (API 6A)

Performance

Working pressure 10,000 psi (10K class). Manufactured to API 6A, PSL 3 (Product Specification Level), PR1 (Performance Requirement). Hydrostatic body and ring-groove tests at 1.5× shell pressure on every unit.

Applications

• Sour-well production wellheads
• H₂S high-pressure tubing landing
• NACE-compliant production trees

OEM equivalents and compatibility

This component is supplied as a recognised dimensional and metallurgical interchange for the following OEM wellhead product lines (no implied authorised-distributor relationship — supplied by Indus Hydraulics):

• Cameron Sour 10K
• FMC SDX-10 NACE
• Stream-Flo Sour

Compliance

• API 6A design and manufacture
• API 6A material class: EE
• API 6A temperature class: P
• PSL 3 / PR1
• NACE MR0175 / ISO 15156 (sour-service / H₂S)
• EN 10204 3.1 / 3.2 mill test reports
• Ring-groove dimension certificates and hardness reports

How to order

Confirm on your RFQ: (a) wellhead bowl size and tubing / casing bore, (b) working pressure and pressure class, (c) top and bottom connection geometry (studded vs flanged, ring-groove series), (d) service class — sour (NACE MR0175) or standard, (e) temperature class, (f) PSL and PR requirements, (g) any custom porting (kill / circulation / instrumentation outlets), and (h) certification requirements. Indus quotes ex-Dubai with full API 6A traceability and OEM-source documentation on request.

Companion products

Pair with matched-class wellhead gate valves (manual or hydraulic), API 6BX flanges, ring-joint gaskets, BSL bolting, casing / tubing hangers, and tree caps in the same pressure class. For frac applications, stack into a frac tree with master valves, swab valves, wing valves, and pressure-release manifolds.