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Name
LINEAR MOTION · PN10–PN320 · DN15–DN600 ·BELLOWS SEALED OPTION
The GB/T 12235 Flanged Globe Valve is a linear motion
control and shutoff valve offering precise flow regulation and
reliable isolation performance. Manufactured to GB/T 12235
standards, it is widely used in steam, oil, gas, and chemical
pipelines where throttling, flow regulation, and frequent
operation are required. Available in straight, angle, and Y
pattern configurations to suit diverse installation
requirements.
| GB/T 12235 | |
|---|---|
| Name | PN10 / PN16 / PN25 / PN40 / PN64 / PN100 / PN160 / PN320 |
| Khoảng cỡ | DN15 – DN600 |
| Vật liệu cơ thể | WCB / WC6 / WC9 / CF8 / CF8M |
| Name | Bolted / Bellows Sealed (Zero Fugitive Emission) |
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GB/T 12235 Flanged Globe Valve - Parameter Table
| Paris | MỘT SỐ HỌC |
|---|---|
| Chuẩn | GB/T 12235 |
| Name | PN10 / PN16 / PN25 / PN40 / PN64 / PN100 / PN160 / PN320 |
| Khoảng cỡ | DN15 – DN600 |
| Vật liệu cơ thể | WCB / WC6 / WC9 / CF8 (304SS) / CF8M (316SS) |
| Nguyên liệu đĩa | A105-STL, F304, F316 |
| Nguyên liệu gốc | 20Cr13, 17-4PH, F304, F318, XM-19 |
| Kết nối | Flanged – GB/T 9113 / RF / FF / RJ Face |
| Name | Bolted Bonnet / Bellows Sealed Bonnet (Zero Fugitive Emission) |
| Flow Pattern | Straight Pattern / Angle Pattern / Y-Pattern |
| Thao tác | Name |
| Lớp nghỉ | GB/T 28480 Class A / API 598 Class VI |
| Chuẩn | GB/T 28480 / API 598 (100% Factory Pressure Test) |
| Phạm vi nhiệt độ | -29°C ~ + 425°C (phụ thuộc trên máy bay) |
| Phương tiện thích hợp | Water / Steam / Oil / Gas / Corrosive Chemical Media |
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
Precision Flow Control & Sealing
The globe valve's linear disc-to-seat contact geometryenables precise throttling control, making it superior to gatevalves for flow regulation applications. Stellite-overlaid discand seat surfaces provide excellent erosion and corrosionresistance, maintaining Class A tight shutoff under highpressure steam and high-temperature service conditions upto 425°C.
Bellows Sealed Zero Fugitive Emission Option
For toxic, hazardous, or environmentally sensitive media, abellows sealed bonnet option is available, providing zerofugitive emission performance and eliminating stem packingleakage risk. This design fully complies with ISO 15848fugitive emission standards and is widely specified inrefinery, chemical, and LNG projects
— FAQ
Những câu hỏi thường xuyên
What is a GB/T 12235 flanged globe valve?
GB/T 12235 is the Chinese national standard governing flanged globe valves for industrial pipeline systems. Globe valves are designed for precise flow throttling and shut-off control, making them the preferred choice in steam lines, chemical dosing systems, and process pipelines where flow regulation is critical. Bautu manufactures GB/T 12235 globe valves in pressure ratings from PN10 to PN320 and sizes from DN15 to DN600, covering the full range of industrial service requirements. Body materials include WCB carbon steel, CF8M stainless steel, and LCB low-temperature steel.
What does "bellows sealed" mean, and why does it matter?
A bellows sealed globe valve replaces the traditional packing gland with a flexible metal bellows welded to the valve stem. This design achieves zero fugitive emissions — the stem is fully enclosed, so there is no path for media to leak to atmosphere. Bellows sealed valves are specifically required for handling toxic, flammable, carcinogenic, or environmentally hazardous fluids where any stem leakage is unacceptable. They are widely specified in petrochemical plants, pharmaceutical facilities, and nuclear applications. Bautu's bellows are manufactured from 316L stainless steel and tested to ≥10,000 flex cycles, ensuring long service life under thermal cycling conditions.
What is the standard lead time, and can Bautu handle custom configurations?
Standard GB/T 12235 bellows sealed globe valves are delivered in 4–6 weeks from order confirmation. For large-bore sizes (DN400–DN600) or high-pressure ratings (PN160–PN320), lead times are typically 6–8 weeks. Bautu supports custom configurations including special body materials (Duplex, Super Duplex, Alloy 20), extended bonnet designs for cryogenic or high-temperature service, and actuator-ready stems for electric or pneumatic automation. Third-party inspection (SGS, BV, TÜV) is available on request. Submit your project specifications for a tailored quotation within 24 hours.
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