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Help CenterMarine Nitrogen Pressure Reducing Valve For Fire Extinguishing & Pneumatic Instrument System
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Shanghai Zhibang Valve Manufacture Co., Ltd., established in 2016, is a professional manufacturer specializing in high-quality valves for marine and industrial applications. Our Marine Nitrogen Pressure Reducing Valve is specifically designed for fire extinguishing and pneumatic instrument systems, ensuring reliable pressure regulation under demanding marine conditions. With an annual export value of US$1–1.5 million and ISO9001 certification, we deliver products that meet international standards.
This valve reduces high-pressure nitrogen from storage cylinders to a stable, lower pressure suitable for fire suppression systems and pneumatic instrumentation. It offers precise control, corrosion resistance, and long service life. Whether for new builds or retrofits, our valve is a trustworthy choice for shipyards, offshore platforms, and marine engineering projects.
Key Features
- High Precision Regulation – Maintains outlet pressure within ±1% of set point, even with fluctuating inlet pressure.
- Corrosion Resistant Construction – Available in stainless steel or brass, with optional electroless nickel plating for harsh marine environments.
- Compact & Lightweight Design – Saves space in engine rooms and control panels.
- Multi-Connection Options – NPT, BSP, or flange connections from 1/4" to 1" for flexible integration.
- Integrated Safety Features – Built-in relief valve prevents overpressure damage.
- Low Maintenance – Sealed diaphragm construction eliminates leakage and reduces servicing needs.
Technical Specifications
| Max Inlet Pressure | 300 bar (4350 psi) |
| Outlet Pressure Range | 0.5 – 20 bar (adjustable) |
| Flow Capacity (Cv) | 0.2 – 1.5 (depending on size) |
| Operating Temperature | -20°C to +80°C |
| Media Compatibility | Nitrogen, compressed air, inert gases |
| Body Material | Stainless Steel 316 / Brass (optional) |
| Seal Material | PTFE, NBR, or Viton (customizable) |
| Connection Type | NPT, BSP, Flange (available upon request) |
Benefits for Your Marine Applications
- Enhanced Safety – Reliable pressure reduction prevents overpressure in fire extinguishing lines and pneumatic controls.
- Extended Equipment Life – Stable outlet pressure reduces wear on downstream instruments and actuators.
- Compliance with Marine Standards – Designed to meet DNV, GL, and other classification society requirements (certification available upon request).
- Easy Installation – Compact size and multiple mounting orientations simplify retrofitting.
- Cost-Effective – Low maintenance and durable materials reduce total cost of ownership.
Why Choose Shanghai Zhibang Valve?
As a dedicated manufacturer since 2016, we have supplied valves to clients across North America, South America, Europe, Asia, Africa, and Oceania. Our annual export value of US$1–1.5 million reflects the trust our global customers place in our products. We are ISO9001 certified, ensuring consistent quality management from design to delivery. Our valves are shipped from major ports including Shanghai, Guangzhou, Hong Kong, and Beijing, with flexible logistics to meet your schedule.
We offer customization options such as special outlet pressure ranges, connection sizes, and material grades. Contact our sales team for technical drawings and quotations. Choose Zhibang for reliable marine nitrogen pressure reducing valves that perform under pressure.
Frequently Asked Questions (FAQ)
Q1: What is the typical outlet pressure for a marine nitrogen pressure reducing valve?
A: The outlet pressure can be set from 0.5 to 20 bar, depending on your system requirements. For fire extinguishing systems, common settings are 10–15 bar; for pneumatic instruments, 4–8 bar is typical.
Q2: Can this valve be used with other gases besides nitrogen?
A: Yes, it is compatible with compressed air, argon, and other inert gases. For corrosive or reactive gases, please consult our engineers for material compatibility.
Q3: What certifications does the valve have?
A: Our manufacturing facility is ISO9001 certified. The valve design can be supplied with third-party inspection certificates (e.g., DNV, CCS, ABS) upon request and at additional cost.
Q4: What is the maximum inlet pressure?
A: The standard maximum inlet pressure is 300 bar. For higher pressures (up to 400 bar), we offer custom models.
Q5: How do I adjust the outlet pressure?
A: The valve features an adjustable screw or knob (depending on model) that allows easy field adjustment. A pressure gauge port is available for monitoring.
Q6: What is the lead time for shipping?
A: For standard models, lead time is 15–25 working days. Custom orders may require 30–40 days. We ship from Shanghai, Guangzhou, Hong Kong, or Beijing.
Q7: Do you provide installation instructions?
A: Yes, each valve comes with a user manual including installation, operation, and maintenance guidelines. Video tutorials are available upon request.
Q8: Can I get a sample before bulk order?
A: Sample orders are accepted. We can provide a quotation for one unit with full technical support.
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