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Help CenterDN25 JIS F7312 Forged Steel Globe Valve 16K Threaded Bonnet Type for High Temp Service
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Shanghai Zhibang Valve Manufacture Co., Ltd., an ISO9001-certified manufacturer established in 2016, proudly presents the DN25 JIS F7312 Forged Steel Globe Valve 16K Threaded Bonnet Type designed specifically for high-temperature service. This globe valve combines robust forged steel construction with precision engineering to ensure reliable shut-off and flow control in demanding industrial applications. With an annual export value exceeding US$1 million, our valves are trusted by clients across North America, Europe, Southeast Asia, and beyond.
Key Features & Technical Specifications
- Forged Steel Body: High-strength forged carbon steel (A105) provides excellent durability and resistance to thermal shock.
- JIS F7312 Standard: Manufactured in compliance with Japanese Industrial Standard, ensuring dimensional interchangeability and performance consistency.
- 16K Pressure Rating: Suitable for nominal pressure up to 16K (approximately PN25), ideal for medium-to-high pressure systems.
- Threaded Bonnet Design: Allows easy disassembly for maintenance and inspection, reducing downtime.
- High-Temperature Capability: Engineered to operate reliably at temperatures up to 425°C (797°F) with appropriate seating materials.
- Threaded Ends: Available with BSPT or NPT threads as per customer request, offering flexible piping connection.
- Stem & Disc: Stainless steel stem with integral disc or renewable disc option for long service life.
| Parameter | Value |
|---|---|
| Nominal Diameter | DN25 (1 inch) |
| Pressure Rating | 16K (PN25) |
| Body Material | Forged Carbon Steel (A105) |
| Bonnet Type | Threaded Bonnet |
| Connection | Threaded (BSPT/NPT) |
| Max Temperature | 425°C (797°F) |
| Design Standard | JIS F7312 |
| Test Pressure (Shell) | 3.8 MPa (38 bar) |
Detailed Product Advantages
The DN25 JIS F7312 Forged Steel Globe Valve is manufactured with precision machining and strict quality control. Its threaded bonnet design simplifies maintenance while ensuring leak-tight performance under cyclic temperature changes. The forged steel body offers superior strength compared to cast alternatives, reducing weight without sacrificing pressure containment. This valve is ideal for use in steam systems, thermal oil circuits, high-pressure hot water, and other high-temperature fluid applications. The stainless steel stem resists corrosion and galling, while the disc can be supplied with stellite facing for extended wear resistance (optional).
Each valve undergoes 100% hydrostatic shell test and seat leakage test in accordance with JIS B2003. The threaded ends conform to BSPT (Rc) or NPT threads, ensuring compatibility with standard piping systems. The valve can be installed in any orientation, though horizontal stem orientation is recommended for best flow characteristics. With a low operating torque and ergonomic handwheel (malleable iron or ductile iron), operators can easily control flow even in high-pressure conditions.
Trust & Reliability
Shanghai Zhibang Valve Manufacture Co., Ltd. has been delivering high-quality valves since 2016. Our ISO9001 certified factory ensures every product meets international quality standards. With an annual export value of US$1–1.5 million, we have supplied globe valves to clients in over 20 countries, including demanding markets in North America, Europe, and the Middle East. Our valves are shipped from major Chinese ports (Shanghai, Guangzhou, Hong Kong, Beijing) with reliable packaging and prompt delivery. We offer customized options such as different thread types, sealing materials, and handwheel designs to meet specific project requirements. Contact us for competitive pricing and technical support.
Frequently Asked Questions
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Q: What is the maximum working pressure for this valve?
A: The valve is rated for 16K (approximately 2.5 MPa / 25 bar) at ambient temperature. For high-temperature service, pressure derating applies according to JIS B2201. -
Q: Can this valve be used for steam service?
A: Yes, the forged steel construction and threaded bonnet design make it suitable for saturated and superheated steam up to 425°C, provided appropriate seating material is selected. -
Q: What thread types are available?
A: Standard thread is BSPT (Rc) as per JIS B0203. NPT threads are available upon request. Please specify when ordering. -
Q: Is this valve bidirectional?
A: This globe valve is designed for unidirectional flow. The flow direction is indicated on the body. For optimal performance, install with flow against the disc. -
Q: What is the lead time for bulk orders?
A: Typical lead time for standard DN25 valves is 15–20 working days after confirmation. Custom specifications may require additional time. Please consult our sales team. -
Q: Does the valve come with a warranty?
A: Yes, we offer a 12-month warranty against manufacturing defects from the date of shipment. Extended warranty is available upon request. -
Q: Can I get a sample for testing?
A: Yes, sample orders are welcome. We can provide a single unit with shipping cost charged. Contact us for details. -
Q: Is the handwheel included?
A: Yes, each valve comes with a handwheel made of malleable iron or ductile iron. Other handwheel options (e.g., stainless steel) are available as customization.
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