API 6D/API 608 WCB Carbon Steel Ball Valve - Low Platform
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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.
| ARI 6D / API 608 / ASME B16.34 | |
|---|---|
| Áp lực | Hạng 150 / Hạng 300 |
| Khoảng cỡ | NPS ½" – 8" (DN15 – DN200) |
| Thân | WCB Carbon Steel (ASTM A216) |
| Service Temp. | -29°C ~ +425°C |
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— Chi tiết đầy đủ
API 6D/API 608 WCB Carbon Steel Ball Valve - Low Platform - ParameterTable
| Paris | MỘT SỐ HỌC |
|---|---|
| Chuẩn | ARI 6D / API 608 / ASME B16.34 |
| Model | GQ41F-150LB |
| Cấp áp lực | Class 150 / Class 300 (ASME B16.34) |
| Khoảng cỡ | NPS 1/2" – 8" (DN15 – DN200) |
| Vật liệu cơ thể | WCB (ASTM A216 Gr.WCB Carbon Steel) |
| Vật liệu Bóng | A105+STL, F304+STL, F316+STL |
| Nguyên liệu ghế ngồi | A105+STL, F304+STL, F316+STL |
| Kết nối | Flanged RF / RTJ – ASME B16.5 |
| Name | Low Platform – ISO 5211 Stem Top with Bracket & Coupler |
| Thiết bị chống tĩnh | Standard – API 6D Compliant |
| Thiết kế an toàn cho lửa | API 607 / API 6FA Compliant |
| Lớp nghỉ | API 598 Class IV (Metal-to-Metal Sealing) |
| Chuẩn | API 598 / API 6D (100% Factory Pressure Test) |
| Phạm vi nhiệt độ | -29°C ~ +425°C |
| Phương tiện thích hợp | Crude Oil / Natural Gas / High-Temp Steam / H2S Service (NACE MR0175) |
Tiến trình sản xuất
1, ném
2. Machining
3 Thử ra
Nạp 4.
Điều kiện truy cập nhanh
— TẠI SAO BAUTU
Tại sao được chỉ định Name
WCB Body — 425°C Beats PTFE by 2.4×
ASTM A216 Gr.WCB carbon steel maintains tensile strengthand creep resistance up to 425°C — well beyond the 180°Cceiling of PTFE soft seats. Standard selection for highpressure steam mains, crude transmission, and refinery hot service.
NACE MR0175 Sour Service Option
Hardness-controlled WCB body and SS316 stem to NACEMR0175 / ISO 15156. Material traceability + charpy +hardness mapping reports supplied — accepted on Aramco,ADNOC, KOC, Petrobras AVL sour-service projects.
— FAQ
Những câu hỏi thường xuyên
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?
ADI 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.
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