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Help CenterForged Steel Globe Valve JIS F7312 DN40 20K Rising Stem Bolted Bonnet Threaded Connection
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Shanghai Zhibang Valve Manufacture Co., Ltd. has been a trusted manufacturer of industrial valves since 2016, exporting products worth US$1–1.5 million annually to global markets including North America, Europe, Southeast Asia, and the Middle East. Our Forged Steel Globe Valve JIS F7312 DN40 20K Rising Stem Bolted Bonnet Threaded Connection exemplifies precision engineering and reliability for demanding applications. Designed to meet the rigorous Japanese Industrial Standard (JIS) F7312, this valve ensures superior shut-off control and long service life in high-pressure and high-temperature environments.
The valve features a forged steel body that provides exceptional strength and resistance to thermal and mechanical stress. The rising stem design offers clear visual indication of the valve position, while the bolted bonnet construction facilitates easy maintenance and reassembly. The threaded connection enables quick and secure piping integration without specialized welding equipment. Ideal for steam, water, oil, and gas applications, this globe valve delivers precise flow regulation with minimal pressure drop.
Key Specifications
| Parameter | Value |
| Standard | JIS F7312 |
| Size | DN40 (1.5 inch) |
| Pressure Rating | 20K (approx. 2.0 MPa / 290 psi at ambient temperature) |
| Material | Forged Carbon Steel (ASTM A105 equivalent) |
| Connection | Threaded (NPT or BSP, customizable) |
| Stem Type | Rising Stem (outside screw & yoke) |
| Bonnet Type | Bolted Bonnet |
| Disc Type | Plug-type disc (standard) |
| Operating Temperature | -29°C to +425°C (based on material) |
| Testing & Certification | ISO9001:2015 quality system; hydrostatic & pneumatic tests per JIS B2003 |
Product Features & Benefits
- Durable Forged Steel Construction: Resists corrosion, erosion, and thermal fatigue, extending service life in severe conditions.
- Rising Stem Visual Indication: Operators can immediately see whether the valve is open or closed, improving safety and operation efficiency.
- Bolted Bonnet Design: Permits easy in-line maintenance – able to replace packing, seat rings, or disc without removing the valve from the pipeline.
- Threaded Connection: Simplifies installation and reduces labor costs; compatible with standard threaded pipe fittings.
- Excellent Shut-off Capability: Plug-type disc and hardened seat provide tight sealing for bubble-tight closure even after repeated cycles.
- Low Operating Torque: Optimized stem and disc geometry reduce handwheel effort, making manual operation smooth.
- Wide Application Range: Suitable for steam, water, oil, gas, and chemical media in power plants, refineries, shipbuilding, and general industry.
Quality Assurance & Reliability
Every valve from Shanghai Zhibang undergoes strict quality control procedures. Our ISO9001:2015 certified management system ensures consistent product quality from raw material inspection to final testing. Each valve is 100% hydrostatically tested at 1.5 times the rated pressure and pneumatically tested at 0.6 MPa for seat leakage compliance. We also offer material test certificates and inspection reports upon request. With global shipping from Shanghai, Guangzhou, Hong Kong, and Beijing ports, we deliver reliable solutions to clients across North America, South America, Europe, Africa, Asia, Oceania, and the Middle East.
Our factory, established in 2016 with an annual export value of over US$1 million, has built a reputation for responsive service and technical support. We provide customized threading options (NPT, BSP, PT, etc.), special trim materials (SS304, SS316, Stellite), and optional handwheel or gearbox operation to meet your specific requirements. Contact us today to discuss your application and obtain a competitive quotation for the JIS F7312 globe valve.
Frequently Asked Questions (FAQ)
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Q: What is the maximum pressure and temperature rating for this valve?
A: The 20K rating corresponds to approximately 2.0 MPa (290 psi) at ambient temperature. For higher temperatures, the pressure rating derates according to JIS B2201. Typically, it can operate up to 425°C with carbon steel body. -
Q: Is the valve suitable for steam service?
A: Yes, the forged steel globe valve is commonly used in steam systems. Ensure that the disc and seat materials are compatible; standard plug disc and hardened seat are suitable for saturated steam up to the rated pressure. -
Q: Can I get a different connection type, such as flanged or welded?
A: This model is specifically designed with threaded connection. For flanged or welded ends, please inquire about our other JIS globe valve series (e.g., flanged type JIS F7312). Customization is available upon request. -
Q: What thread standards are available?
A: We offer NPT (American), BSP (British), and PT (Japanese) threads. Please specify your required standard when ordering. -
Q: How often should the valve be maintained?
A: Maintenance frequency depends on operating conditions. A general recommendation is to inspect the packing and seat tightness every 6–12 months. The bolted bonnet design simplifies packing replacement and seat resurfacing. -
Q: Does the valve come with a certificate of compliance?
A: Yes, we provide a material test certificate (MTC) and a pressure test report with each valve as standard. Third-party inspection is also available at extra cost. -
Q: What is the lead time for this product?
A: Standard lead time is 15–25 days for quantities up to 50 pieces. Larger orders may require 30–45 days. We have stock available for quick shipment; please contact our sales team for current stock status. -
Q: Can I order a sample before bulk purchase?
A: Yes, sample orders are welcome. We can ship a single unit via express courier. The sample cost is usually net, and a bulk order discount can be negotiated afterward.
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