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Help CenterJIS F7312 Forged Steel Globe Valve 1/2"-2" 20K Flanged Connection Carbon Steel Body
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As a professional manufacturer with ISO9001 certification and over 8 years of export experience, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents the JIS F7312 Forged Steel Globe Valve in sizes 1/2" to 2" with 20K pressure rating and flanged connection. This valve is specifically engineered to meet the demanding requirements of industrial fluid control systems, offering reliable shut-off and precise throttling capabilities. Manufactured from high-quality carbon steel with a forged body, it ensures excellent mechanical strength and durability under high-pressure and high-temperature conditions.
Our valves are widely shipped to markets across North America, South America, Europe, Southeast Asia, Africa, and the Middle East, and we have a solid track record of annual export values between US$1 million and US$1.5 million. Every valve is produced under strict quality control procedures and adheres to the JIS F7312 standard, guaranteeing dimensional accuracy and performance consistency.
Product Features & Technical Specifications
- Forged carbon steel body (ASTM A105) — provides superior structural integrity and resistance to thermal and mechanical stress.
- 20K pressure class — suitable for high-pressure applications up to approximately 2.0 MPa (20 bar) at elevated temperatures.
- Flanged end connections — designed to JIS 10K/20K flange standards for easy installation and leak-proof sealing.
- Rising stem with handwheel — allows visual indication of valve position and smooth manual operation.
- Forged steel disc (plug-type) — ensures tight shut-off and reduced erosion in throttling services.
- Bolted bonnet construction — enables easy maintenance and re-packing without removing the valve from the pipeline.
- Available with optional materials — stainless steel trim, different packing materials, or extended bonnet for cryogenic or high-temperature services (upon request).
| Parameter | Specification |
|---|---|
| Size Range | 1/2", 3/4", 1", 1-1/4", 1-1/2", 2" |
| Pressure Rating | 20K (JIS B2220 flange rating) |
| Body Material | Carbon Steel (ASTM A105) or equivalent |
| Trim Material | 13Cr stainless steel (standard); optional 304/316 |
| Operation | Handwheel (rising stem) |
| Design Standard | JIS F7312 |
| Flange Standard | JIS B2220 (10K/20K drilling) |
| Temperature Range | -29°C ~ +425°C (depending on material selection) |
| Applicable Media | Water, oil, gas, steam, non-corrosive fluids |
Key Advantages for Your Application
- Long service life — Forged body eliminates internal porosity and cracks common in cast valves, reducing the risk of leakage.
- Precise flow control — The plug-type disc provides linear flow characteristics suitable for both on/off and throttling services.
- Easy maintenance — Bolted bonnet design allows quick access to internal parts, and the packing can be replaced without dismantling the valve from the line.
- Global compatibility — Flanged ends conform to JIS standards, widely accepted in Asian, Middle Eastern, and Eastern European markets.
- Cost-effective reliability — Carbon steel construction offers a balanced combination of strength, affordability, and weldability.
Trust & Quality Assurance
Shanghai Zhibang Valve Manufacture Co., Ltd. has been a dedicated manufacturer since 2016, and our valves are exported to over 13 regions worldwide. With an annual export value exceeding US$1 million, we have built a reputation for consistent quality and on-time delivery. Our ISO9001:2015 certified quality management system ensures that every valve is tested and inspected before shipment. We offer flexible shipping from Shanghai, Guangzhou, Hong Kong, and Beijing, enabling fast logistics to any global port.
Backed by a professional engineering team and responsive customer service, we provide technical support, custom modifications (such as special trim materials or extended stems), and comprehensive after-sales service. Choose our JIS F7312 forged steel globe valve for your next project and experience the difference of reliability and performance.
Contact us today for a quote or sample order! We are ready to support your industrial valve needs with competitive pricing and rapid delivery.
Frequently Asked Questions (FAQ)
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Q: What is the difference between 20K and other pressure ratings?
A: JIS 20K corresponds to a nominal pressure of approximately 2.0 MPa (20 bar) at ambient temperature. It is equivalent to Class 150 in ANSI standards and is suitable for medium-pressure applications in water, oil, and gas systems. -
Q: Can this valve be used for high-temperature steam service?
A: Yes, the standard carbon steel body can withstand temperatures up to 425°C. However, for continuous steam service above 400°C, we recommend using a stainless steel trim option to minimize corrosion and oxidation. -
Q: Are flanges compatible with other standards like ANSI or DIN?
A: The flanges are designed to JIS B2220, which has different dimensions and bolt patterns from ANSI or DIN. If you need conversion, we can supply companion flanges or provide adaptors upon request. -
Q: Do you offer non-standard sizes or reduced bore?
A: Standard sizes range from 1/2" to 2". Custom sizes or full/reduced bore configurations are available as special orders. Please contact us with your specific requirements. -
Q: What is the packing material used in the stem seal?
A: Standard packing is flexible graphite with a braided PTFE core. For low-temperature or oxygen service, we can supply PTFE or other suitable materials on request. -
Q: How do you ensure the valve is leak-proof?
A: Each valve undergoes hydrostatic shell test (1.5x rated pressure) and a seat leakage test (bubble-tight closure). Our ISO9001 quality system mandates documentation of each test result. -
Q: Can I get a sample before placing a bulk order?
A: Yes, sample orders are welcome. We can provide a single valve or a small quantity for testing. The sample cost will be deducted from your first bulk order. -
Q: What is the typical lead time?
A: For standard sizes and materials, lead time is 15–25 working days. Custom options may require 30–40 working days. We can expedite urgent orders based on stock availability.
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