API 6D/API 608 WCB Carbon Steel Ball Valve - Low Platform
FREE · No sign-up · Instant download
API 6D/API 608 WCB Carbon Steel Ball Valve - Low Platform
WCB CARBON STEEL · UP TO +425°C · NACE MR0175 SOUR SERVICE
Heavy-duty WCB carbon steel ball valve engineered for severe
service in oil, gas, refinery, and high-temperature steam
pipelines. ASTM A216 Gr.WCB body rated to 425°C —
significantly past the 180°C limit of PTFE soft seat designs.
Stellite metal-to-metal trim (HRC 38–45) for high-differential
pressure shutoff. NACE MR0175 / ISO 15156 compliant
variant available for H₂S sour gas service on Aramco, ADNOC,
and Petrobras EPC projects.
| API 6D / API 608 / ASME B16.34 | |
|---|---|
| Pressure | Class 150 / Class 300 |
| Size Range | NPS ½" – 8" (DN15 – DN200) |
| Body | WCB Carbon Steel (ASTM A216) |
| Service Temp. | -29°C ~ +425°C |
Sales team responds within 24 hours
— Full Specifications
API 6D/API 608 WCB Carbon Steel Ball Valve - Low Platform - ParameterTable
| PARAMETER | SPECIFICATION |
|---|---|
| Standard | API 6D / API 608 / ASME B16.34 |
| Model | GQ41F-150LB |
| Pressure Class | Class 150 / Class 300 (ASME B16.34) |
| Size Range | NPS 1/2" – 8" (DN15 – DN200) |
| Body Material | WCB (ASTM A216 Gr.WCB Carbon Steel) |
| Ball Material | A105+STL, F304+STL, F316+STL |
| Seat Material | A105+STL, F304+STL, F316+STL |
| End Connection | Flanged RF / RTJ – ASME B16.5 |
| Platform Type | Low Platform – ISO 5211 Stem Top with Bracket & Coupler |
| Anti-Static Device | Standard – API 6D Compliant |
| Fire Safe Design | API 607 / API 6FA Compliant |
| Leakage Class | API 598 Class IV (Metal-to-Metal Sealing) |
| Test Standard | API 598 / API 6D (100% Factory Pressure Test) |
| Temperature Range | -29°C ~ +425°C |
| Applicable Media | Crude Oil / Natural Gas / High-Temp Steam / H2S Service (NACE MR0175) |
Our Production Process
1. Casting
2. Machining
3. Testing
4. Loading
Inquiry Form - Quick Access
· Product documentation
Download Bautu Valve Documentation
Free · Instant
This Product Spec Sheet
Single-page datasheet for API 6D / API 608 WCB Carbon Steel
Hard Seated Ball Valve – Low Platform
- Full parameter table
- Dimensional drawing
- Materials & standards list
- Ordering code guide
Full Catalog
Complete Product Catalog
— WHY bAUTU
Why Specify This Valve from Bautu
WCB Body — 425°C Beats PTFE by 2.4×
ASTM A216 Gr.WCB carbon steel maintains tensile strength and creep resistance up to 425°C — well beyond the 180°C ceiling of PTFE soft seats. Standard selection for high pressure steam mains, crude transmission, and refinery hot service.
NACE MR0175 Sour Service Option
Hardness-controlled WCB body and SS316 stem to NACE MR0175 / ISO 15156. Material traceability + charpy + hardness mapping reports supplied — accepted on Aramco, ADNOC, KOC, Petrobras AVL sour-service projects.
— FAQ
Frequently Asked Questions
What does WCB mean, and why is it the most common ball valve body material?
WCB (ASTM A216 Grade WCB) is cast carbon steel — the industry-standard body material for industrial ball valves in oil, gas, and general process service. It offers an excellent balance of mechanical strength, pressure resistance, weldability, and cost-effectiveness, rated for service temperatures from -29°C to +425°C. WCB is specified by default in most oil and gas, petrochemical, and power generation projects where the media is non-corrosive or only mildly corrosive. For corrosive or cryogenic applications, stainless steel (CF8M) or low-temperature carbon steel (LCB) bodies are specified instead.
What does API 6D mean, and what is the difference between Class 150 and Class 300?
API 6D is the American Petroleum Institute standard for pipeline and piping valves, covering design, materials, dimensions, testing, and marking requirements for valves used in oil and gas transmission systems. It is the most widely recognized valve standard for international energy projects. Class 150 valves have a maximum working pressure of approximately 19.6 bar (285 psi) at ambient temperature — suitable for low-to-medium pressure pipelines. Class 300 valves are rated to approximately 51 bar (740 psi), designed for higher-pressure gathering lines, compressor stations, and process systems. Always confirm the pressure-temperature rating from the standard tables for your specific operating temperature.
What is the standard lead time, and what custom configurations does Bautu offer?
Standard WCB API 6D ball valves in Class 150 and Class 300 are delivered in 4–6 weeks from order confirmation. Bautu supports full customization including fire-safe design (API 607 / API 6FA), anti-static device, double-block-and-bleed (DBB) configuration, Stellite-hardfaced seats for erosive service, and pneumatic or electric actuator packages. Third-party inspection and certification (SGS, BV, TÜV, Lloyds) is available. Submit your valve datasheet or project specification for a tailored quotation within 24 hours.
— Get In touch
Need Quote for This Valve?
Tell us size, quantity, material and required standard — sales team responds within 24 hours.