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Help CenterDN25 Marine Stainless Steel Pressure Reducing Valve 316L Flanged PN40 CE Compliant
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Shanghai Zhibang Valve Manufacture Co., Ltd., established in 2016, is a professional manufacturer specializing in high-quality valves for marine, industrial, and commercial applications. Our DN25 Marine Stainless Steel Pressure Reducing Valve 316L Flanged PN40 is designed to deliver precise pressure control in demanding seawater and corrosive environments. With annual export value exceeding US$1 million and global distribution to over 15 countries, we combine advanced engineering with reliable manufacturing to ensure your systems operate safely and efficiently. This valve is CE compliant and built to withstand the harshest conditions, offering long service life and minimal maintenance.
Product Overview – The DN25 pressure reducing valve automatically reduces a higher inlet pressure to a stable lower outlet pressure, regardless of flow fluctuations. Constructed from 316L stainless steel, it provides excellent corrosion resistance against saltwater, chemicals, and high-temperature fluids. The flanged connection (PN40) ensures secure installation in piping systems, making it ideal for marine, offshore, desalination, and HVAC applications.
Key Features & Technical Specifications
- Material Excellence: 316L stainless steel body and internal components – superior resistance to pitting, crevice corrosion, and stress cracking in marine environments.
- Pressure Rating: PN40 (equivalent to Class 300) – suitable for high-pressure systems up to 40 bar (580 psi).
- Flanged Connection: DIN/ANSI/JIS standard flanges with raised face, easy to install and maintain.
- Precise Regulation: Adjustable outlet pressure range from 1 to 10 bar (optional custom ranges available).
- Built-in Filter: Stainless steel mesh filter protects internal components from debris.
- Temperature Range: -20°C to +120°C (higher temperature options upon request).
- Seat Seal: PTFE seat provides tight shut-off and low wear, reducing leakage risk.
- Compliance: CE marked, ISO9001 quality management system certified.
| Parameter | Value |
|---|---|
| Nominal Diameter | DN25 (1 inch) |
| Body Material | 316L Stainless Steel (CF3M) |
| Connection | Flanged – DIN PN40 / ANSI 300 / JIS 20K |
| Max Inlet Pressure | 40 bar (580 psi) |
| Outlet Pressure Range | 1 – 10 bar (adjustable) |
| Operating Temperature | -20°C to +120°C |
| Media | Fresh water, seawater, oil, gas, steam (optional) |
| Seat Material | PTFE (Teflon) – optional metallic seat for high temperature |
| Certification | CE, ISO9001 |
Advantages & Customer Benefits
- Corrosion Resistance: 316L stainless steel ensures long-term durability in marine environments, reducing replacement frequency.
- High Flow Capacity: Optimized internal design minimizes pressure drop and maintains stable output even under variable flow.
- Easy Maintenance: Modular construction allows quick disassembly for cleaning or seal replacement without removing the valve from the pipeline.
- Field Adjustable: Outlet pressure can be easily adjusted by turning the adjustment screw – no special tools required.
- Safety: Built-in overpressure relief protection (optional) and CE compliant design meet international safety standards.
- Wide Compatibility: Suitable for both potable water and aggressive fluids, making it versatile for marine, industrial, and irrigation systems.
Why Choose Shanghai Zhibang Valve? As a dedicated manufacturer with over 8 years of experience, we have supplied valves to projects in North America, Europe, Southeast Asia, and the Middle East. Our company’s annual export value of US$1–1.5 million reflects the trust of international clients. We offer customizable options (different flanges, seat materials, pressure ranges) and provide 24/7 technical support. Every valve is tested before shipment, and we stand behind our products with a 12-month warranty against manufacturing defects. Contact us today for a quotation or to discuss your specific requirements.
Frequently Asked Questions (FAQ)
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Q: What is the maximum inlet pressure for this valve?
A: The valve is rated for PN40, meaning maximum inlet pressure is 40 bar (580 psi). Higher pressure ratings are available upon request. -
Q: Can this valve be used with seawater?
A: Yes. The 316L stainless steel body and internal components are specifically designed to resist chloride-induced corrosion, making it suitable for seawater and marine applications. -
Q: Is the outlet pressure adjustable?
A: Absolutely. The outlet pressure can be set between 1 and 10 bar by turning the adjustment screw. A pressure gauge port is provided for monitoring. -
Q: What flange standards are available?
A: Standard flanges are DIN PN40. We can also supply ANSI Class 300, JIS 20K, or other custom flanges based on your requirements. -
Q: Does the valve come with a filter?
A: Yes, a stainless steel mesh filter is integrated at the inlet to protect the valve from debris. We recommend periodic cleaning of the filter. -
Q: What is the operating temperature range?
A: Standard temperature range is -20°C to +120°C. For high-temperature applications up to 250°C, we offer a metal seat option. -
Q: How can I be sure of the product quality?
A: Our factory is ISO9001 certified, and each valve is hydrostatically tested before shipment. We also provide CE compliance documentation. Third-party inspection is welcome. -
Q: What is the lead time for this valve?
A: For standard DN25 valves, typical lead time is 15–20 working days. Custom orders may take 25–30 days. Please contact our sales team for exact delivery schedule.
Ready to upgrade your pressure control system? Our team is ready to assist with technical data sheets, drawings, and competitive pricing. Contact us now for a quote or to discuss your marine valve requirements. Shanghai Zhibang Valve – your reliable partner in fluid control.
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