API 6D · Pipeline Ball Valves · Trunnion Mounted · Floating Ball · Saudi Arabia · SAEP-347

API 6D Pipeline Ball Valves — Trunnion Mounted and Floating Ball — SAEP-347 Compatible

Class 150 – 1500 · NPS ½″ – 48″ · Full Bore & Reduced Bore · Fire-Safe API 607 · EN 10204 3.1 MTCs · ISO 9001:2015

Gulf Union Ozone is a Jeddah-based stockist of API 6D pipeline ball valves for Saudi Aramco and major oil, gas, and pipeline projects in the Kingdom. Our warehouse holds a full range of trunnion mounted (TM) and floating ball valves in carbon steel (ASTM A216 WCB) and stainless steel (ASTM A351 CF8M) body materials — full bore (FB) and reduced bore (RB) configurations, Class 150 to 1500, with API 607 fire-safe certificates and EN 10204 Type 3.1 Mill Test Certificates for SAEP-347 documentation compliance.

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API 6D ball valves Saudi Arabia SAEP-347 pipeline trunnion mounted floating — Gulf Union Ozone
StandardAPI 6D (ISO 14313)
DesignTrunnion (TM) · Floating (FB)
BoreFull Bore (FB) · Reduced Bore (RB)
Class150 · 300 · 600 · 900 · 1500
Fire-SafeAPI 607 · API 6FA
SAEP-347Compatible — Annex 4
Specification Overview

What Is API 6D? — The Pipeline Valve Standard for Saudi Aramco Projects

API 6D (identical to ISO 14313) is the American Petroleum Institute standard for pipeline valves — specifically covering ball valves, check valves, and plug valves used in trunk pipeline and gathering system applications. It differs from ASME B16.34 (which covers plant process valves) and API 600/602 (gate valves) in its specific pipeline design requirements: longer face-to-face dimensions, bidirectional shutoff capability, trunnion-mounted designs for larger bores, and mandatory fire-safe testing.

For Saudi Aramco SAEP-347 procurement, API 6D ball valves are stocked under specific Annex 4 material numbers covering pipeline isolation service. The fire-safe requirement (API 607 for soft-seated, API 6FA for pipeline valves) is mandatory for all ball valves in hydrocarbon service. Gulf Union Ozone maintains both API 607 fire test certificates and original EN 10204 3.1 MTCs for all API 6D ball valves in stock.

API 6D vs API 600 vs ASME B16.34 — When to Use Each
StandardValve TypeApplication
API 6DBall, check, plug valvesPipeline, gathering systems, pigging operations
API 600/602Gate valves (bolted/pressure-seal bonnet)Plant process piping isolation
ASME B16.34All valve types (general)Plant piping — pressure-temperature rating basis
API 6D Ball Valve Design Types
Trunnion Mounted (TM)
Ball fixed by upper and lower trunnions. Seat seals under spring/line pressure. Low operating torque. Standard for NPS 4″ and above, Class 300+.
Floating Ball
Ball floats between seats; line pressure pushes ball against downstream seat. Simple design. Standard for NPS ½″ to 4″, Class 150–600.
Full Bore (FB)
Bore diameter equals nominal pipe bore. Enables pigging. No restriction in pipeline. Required for pipeline scraper service.
Reduced Bore (RB)
Bore one or two sizes smaller than nominal pipe. More compact and lower cost. Used where pigging is not required.
Fire-Safe Certification

API 607: fire test for soft-seated quarter-turn valves (PTFE/elastomeric seats). API 6FA: fire test for pipeline valves. All Gulf Union Ozone API 6D stock includes original fire test certificates. Required for Saudi Aramco hydrocarbon service.

Valve selection guide →
In Summary

API 6D ball valves are the standard for pipeline block, isolation, and emergency shut-down (ESD) duty in oil & gas. The API 6D 25th edition requires full-bore or reduced-bore design, fire-safe construction per API 6FA/607, and double-block-and-bleed (DBB) capability for injection and drain applications. Trunnion-mounted design is mandatory for Class 600 and above, and for floating design above NPS 6. EN 10204 3.1 MTCs are required for all SAEP-347 compatible ball valve body and trim materials.

Jeddah Ex-Stock Range

API 6D Ball Valve Stock — Gulf Union Ozone Jeddah Warehouse

Standard stock covers the most frequently specified API 6D ball valve configurations for Saudi Aramco and EPC projects. Confirm availability and lead time by submitting an RFQ.

Configuration Body Material Bore Class Size Range In Stock
Floating Ball (FB) ASTM A216 WCB (Carbon Steel) Full Bore Class 150 / 300 ½″ – 4″ ✓
Floating Ball (FB) ASTM A351 CF8M (316 SS) Full Bore Class 150 / 300 ½″ – 4″ ✓
Trunnion Mounted (TM) ASTM A216 WCB (Carbon Steel) Full Bore Class 150 / 300 / 600 2″ – 24″ ✓
Trunnion Mounted (TM) ASTM A216 WCB (Carbon Steel) Full Bore Class 900 / 1500 2″ – 16″ ✓
Trunnion Mounted (TM) ASTM A351 CF8M (316 SS) Full Bore Class 150 / 300 / 600 2″ – 16″ ✓
Trunnion Mounted (TM) ASTM A352 LCB (Low-Temp CS) Full Bore Class 150 / 300 / 600 2″ – 12″ Inquiry

All valves: API 6D · Fire-safe API 607 · EN 10204 3.1 MTCs · SAEP-347 compatible · Submit RFQ →

In Summary

Gulf Union Ozone stocks API 6D ball valves in sizes ½" to 24" NPS in ASME Class 150 through 2500 — covering both floating and trunnion-mounted designs. Stock configurations include WCB carbon steel body with 316SS trim (standard service), LF2 body with 316SS trim (low-temperature service to −46°C), and CF8M stainless steel body and trim (corrosive and sour service). All valves include EN 10204 3.1 MTCs and fire-safe certification per API 607.

Material & Compliance

API 6D Ball Valve Body Materials — Selecting the Right Grade for Saudi Aramco Service

Body material selection for API 6D ball valves depends on the service temperature, fluid, and SAEP-347/SAMSS specification requirements. The most common body material for general carbon steel pipeline service is ASTM A216 WCB (cast carbon steel, suitable from −29°C to 425°C). For stainless service, ASTM A351 CF8M (cast 316 SS) covers −196°C to 538°C and includes chloride and sour service resistance.

Grade Type Temp Range Service
A216 WCBCast CS−29°C to 425°CStandard pipeline, oil, gas
A105Forged CS−29°C to 425°CSmall-bore flanged valves
A352 LCBLow-temp cast CS−46°C to 345°CLNG, cold service, LPG
A351 CF8MCast 316 SS−196°C to 538°CCorrosive, NACE sour service
NACE MR0175 Sour Service Compliance

For H₂S sour service, API 6D ball valves must comply with NACE MR0175 / ISO 15156 hardness requirements: 22 HRC max for carbon steel, 28 HRC max for duplex stainless steel. EN 10204 3.1 MTCs showing actual hardness test results are required. Gulf Union Ozone provides 3.1 MTCs with hardness values for all sour-service-eligible stock. View sour service materials →

SAEP-347 Documentation Package

Gulf Union Ozone supplies the complete SAEP-347 documentation package for every API 6D ball valve order:

  • ✓EN 10204 3.1 MTC — heat number, chemical analysis, mechanical test results, 3.1 inspector signature
  • ✓API 607 Fire Test Certificate — original from valve manufacturer
  • ✓Pressure Test Report — hydrostatic shell, seat, and backseat test per API 6D
  • ✓Dimensional Inspection Report — face-to-face, bore diameter, flange drilling per ASME B16.5
  • ✓ISO 9001:2015 Certificate — Gulf Union Ozone quality system certificate
  • ✓Saudi CR — Commercial Registration 4030570569
API 6D vs API 608 — What's the Difference?

API 6D covers pipeline ball valves with full-bore option, bidirectional seats, and fire-safe testing — used in transmission and gathering systems. API 608 covers metal ball valves for general process piping (Class 150 and 300 only), typically in plant/facility piping where the pipeline-specific requirements of API 6D are not specified. Saudi Aramco projects typically specify API 6D for pipeline service and ASME B16.34 / API 608 for plant process piping.

In Summary

All SAEP-347 Annex 4 ball valve material numbers require full API 6D certification with fire-safe construction per API 607 and NACE MR0175 compliance for sour service designations. Key procurement requirement: specify (1) valve type (floating or trunnion), (2) end connection (RF flanged, BW, or threaded), (3) pressure class, (4) body and trim material, (5) whether anti-static device, DBB, or monoflanged configuration is needed. Submitting these details in the RFQ allows Gulf Union Ozone to confirm from stock or provide a lead time from our mill supply chain.

FAQ

API 6D Ball Valve Questions — Answered

What is the difference between an API 6D ball valve and an API 600 gate valve for Saudi Aramco pipeline service?

API 6D covers pipeline valves (ball, check, plug) for trunk pipelines and gathering systems — featuring bidirectional shutoff, trunnion mounting for large bores, and fire-safe testing (API 607/6FA). API 600 covers bolted-bonnet gate valves for plant process piping isolation. For SAEP-347, both are stocked under specific Annex 4 material numbers for their respective applications. Gate valve vs ball valve comparison →

What is the difference between a trunnion mounted ball valve and a floating ball valve?

In a floating ball valve, the ball is unsupported — it floats against seats under line pressure. Used for smaller sizes (NPS ½″–4″) and lower classes (150–600). In a trunnion mounted ball valve, the ball is fixed by upper and lower trunnions — the seats move to seal against the ball. Used for NPS 2″ and above, Class 300 and above, where low operating torque and predictable sealing regardless of differential pressure is required. Trunnion designs are standard for Saudi Aramco large-bore pipeline valves.

Are API 6D ball valves fire-safe and what certification is required for Saudi Aramco?

Yes. API 6D ball valves for Saudi Aramco hydrocarbon service must be fire-safe. The required standard is API 607 for soft-seated valves (PTFE or elastomeric seats — the most common) or API 6FA for pipeline valves tested to a more stringent protocol. Fire-safe testing validates that the valve maintains acceptable leakage through and across the body during and after exposure to 760°C for 30 minutes. Gulf Union Ozone provides original API 607 fire test certificates with every API 6D ball valve order.

What body materials are available for API 6D ball valves in Saudi Arabia?

The most common body material for Saudi Aramco pipeline ball valves is ASTM A216 WCB (cast carbon steel, −29°C to 425°C). For stainless service (corrosive, NACE sour), ASTM A351 CF8M (cast 316 SS) covers −196°C to 538°C. For low-temperature service (−46°C and below), ASTM A352 LCB is used. All materials are supplied with EN 10204 3.1 MTCs showing actual chemical and mechanical values including hardness (for NACE compliance). Contact Gulf Union Ozone for current Jeddah stock availability by material and size.
Related Pages
All Valves → Gate Valve vs Ball Valve → SAEP-347 Material Numbers → Sour Service Materials → Valve Selection Guide → Globe & Plug Valves → Aramco Valve Supplier — Jeddah →
API 6D · Pipeline Ball Valves · Trunnion & Floating · SAEP-347 · API 607 · EN 10204 3.1 · Jeddah Stock

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API 6D · API 607 Fire-Safe · EN 10204 3.1 MTCs · ISO 9001:2015 · CR 4030570569 ·

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