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Help CenterJIS F7312 Forged Steel Globe Valve PN40 Flanged End 304 Stainless Steel Trim Marine Use
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Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our JIS F7312 Forged Steel Globe Valve PN40 Flanged End with 304 Stainless Steel Trim, specifically engineered for demanding marine applications. As a manufacturer established in 2016 with an annual export value of US$1 million to US$1.5 million, we combine precision forging technology with strict quality control to deliver valves that excel in seawater systems, ballast lines, and engine room piping. This valve meets the rigorous Japanese Industrial Standard JIS F7312, ensuring compatibility with global marine specifications.
Our globe valve is designed for throttling and positive shut-off in high-pressure marine environments up to PN40 (approx. 40 bar). The forged steel body provides superior strength and resistance to thermal shock, while the 304 stainless steel trim (including disc and seat) offers excellent corrosion resistance against saltwater and steam. The flanged end connection simplifies installation and maintenance, making it a trusted choice for shipbuilders and offshore operators worldwide.
Key Features & Technical Specifications
- Durable Construction: Forged steel body (ASTM A105 or equivalent) ensures high mechanical strength and leak-proof performance under pressure fluctuations.
- Corrosion-Resistant Trim: 304 stainless steel disc and seat ring resist pitting and crevice corrosion in marine environments.
- Precision Machining: Hardened seat faces with lapped finish provide bubble-tight shut-off and extended service life.
- Flanged Ends: Conforms to JIS B2220 (10K/20K) flange standard, allowing easy bolting to pipeline systems.
- Rising Stem Design: Visual position indication and reduced packing leakage risk.
- Compact & Lightweight: Compared to cast steel valves, forged construction reduces weight by approximately 20–30%, beneficial for space-limited marine installations.
- Flexible Operation: Standard handwheel; optional gearbox or pneumatic/electric actuator available upon request.
| Parameter | Specification |
| Size Range | DN15 – DN100 (1/2" to 4") |
| Pressure Rating | PN40 (40 bar / 580 psi) |
| Body Material | Forged Steel (A105) |
| Trim Material | 304 Stainless Steel (Disc & Seat) |
| End Connection | Flanged (JIS B2220 10K/20K) |
| Standard | JIS F7312 |
| Application | Marine, Offshore, Industrial |
| Certification | ISO9001:2015 |
Marine-Grade Performance Advantages
This globe valve is purpose-built to withstand the harsh conditions found in marine systems. The forged steel body offers superior resistance to vibration and mechanical stress compared to cast alternatives. The 304 stainless steel trim ensures long-term reliability in contact with seawater, steam, and condensate without compromising sealing integrity. Our valve has been tested at our facility to meet bubble-tight shut-off criteria per JIS F7312, giving you confidence in critical isolation applications.
Key benefits for your marine operations include:
- Reduced maintenance downtime – hardened seat surfaces and corrosion-resistant trim extend service intervals.
- Full compatibility with JIS flanged piping systems, widely used in Asian-built vessels.
- Pressure integrity up to PN40 (580 psi) for high-pressure hydraulic or steam lines.
- Environmentally responsible – packing and gasket materials are selected to minimize fugitive emissions.
Our Commitment & Trust Factors
Shanghai Zhibang Valve Manufacture Co., Ltd. has been delivering high-quality industrial valves since 2016, with annual export values consistently between US$1 million and US$1.5 million. Our main markets span across North America, South America, Europe, Southeast Asia, Africa, and Oceania – a testament to our global acceptance. We hold ISO9001:2015 certification for our manufacturing processes, ensuring traceability and consistent quality from raw material to finished product.
All our JIS F7312 globe valves undergo 100% pressure testing and seat leakage testing before shipment. We offer flexible shipping from Shanghai, Guangzhou, Hong Kong, and Beijing ports, with standard lead times of 15–30 days depending on quantity. Our dedicated engineering team can provide custom modifications such as extended bonnets for cryogenic service or special coatings upon request.
Choose Shanghai Zhibang for your marine valve needs – where Japanese standard precision meets Chinese manufacturing value. Contact us today for a competitive quotation and technical datasheet. We are committed to being your reliable partner in fluid control.
Frequently Asked Questions
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Q: What is the difference between JIS F7312 and other globe valve standards?
A: JIS F7312 is the Japanese Industrial Standard for forged steel globe valves. It specifies dimensions, pressure-temperature ratings, and testing methods tailored to marine and industrial applications. Compared to ISO or ANSI standards, JIS flanges have different bolt circle dimensions, so this valve is directly compatible with JIS B2220 flange systems. -
Q: Can this valve be used for steam service?
A: Yes, the forged steel body and 304 stainless steel trim are suitable for saturated steam up to 200°C (392°F). For higher temperature steam, we recommend inquiring about optional Stellite trim. -
Q: What is the maximum working pressure at room temperature?
A: PN40 rating corresponds to 40 bar (580 psi) at ambient temperature. For elevated temperature applications, the pressure rating de-rates according to JIS B2201; please refer to our pressure-temperature chart. -
Q: Is the valve available with a pneumatic actuator?
A: Yes, we can supply the valve with a pneumatic piston actuator or electric actuator as an option. Please specify your control requirements (on/off, modulating, fail-safe) when ordering. -
Q: How do I ensure correct flange compatibility?
A: Our standard flanges conform to JIS B2220 10K/20K. If your system uses ANSI B16.5 or DIN flanges, we can provide adapters or customize the flange dimensions upon request. -
Q: What certifications do you provide?
A: We provide ISO9001 certification for our quality management system. Material certificates (EN 10204 3.1) and hydrostatic test reports are available for each batch. If a specific third-party inspection (e.g., DNV, ABS, Lloyds) is required for marine classification, please inform us in advance – we can arrange it at an additional cost. -
Q: What is the typical lead time for this valve?
A: For standard sizes DN15–DN50, our lead time is 15–20 working days. Larger sizes DN65–DN100 may require 25–30 days. We can expedite urgent orders for an additional fee. -
Q: Can I get a sample for testing before bulk order?
A: Certainly. We accept sample orders with full payment and offer a sample discount for first-time customers. The sample valve will be fully tested and shipped with documentation.
Note: All products are subject to our standard terms and conditions. Specifications may be changed without prior notice. Images are for illustration only.
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