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Help CenterMarine Safety Valve OEM Manufacturer, 316L Stainless Steel Body, Flanged Connection, Pressure Range 0.5-10 Bar, ISO 4126 Compliant
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Shanghai Zhibang Valve Manufacture Co., Ltd., established in 2016 and ISO9001 certified, is a professional manufacturer specializing in high-quality marine safety valves. Our Marine Safety Valve OEM Manufacturer, 316L Stainless Steel Body, Flanged Connection, Pressure Range 0.5-10 Bar, ISO 4126 Compliant is designed to provide reliable overpressure protection for shipboard systems, offshore platforms, and industrial applications. With a strong export track record of US$1-1.5 million annually, we serve global markets including North America, Europe, Southeast Asia, and Oceania. This valve combines superior corrosion resistance, precise pressure control, and full compliance with international standards, making it the ideal choice for demanding marine environments.
Our safety valve features a robust 316L stainless steel body that withstands seawater corrosion, harsh chemicals, and extreme temperatures. The flanged connection ensures easy installation and leak-proof sealing, while the pressure range of 0.5-10 bar covers a wide spectrum of system requirements. Each valve is manufactured in strict accordance with ISO 4126 standards, ensuring repeatable blow-off and reseat performance. As an OEM manufacturer, we offer customization options for size, pressure setting, connection dimensions, and accessories to meet specific project needs.
Key Features & Technical Specifications
- Material Excellence: 316L stainless steel body, bonnet, and trim provide exceptional resistance to chloride stress corrosion cracking and pitting. Suitable for both seawater and chemical environments.
- Flanged Connection: Available in ANSI 150/300, DIN, or JIS standard flanges for straightforward integration into existing piping systems. Options for raised face or ring joint facing.
- Precise Pressure Setting: Factory-set pressure range from 0.5 to 10 bar, fully adjustable within ±5% of set point. The blowdown ring design allows fine-tuning of blowdown percentage.
- ISO 4126 Compliance: Designed and tested according to ISO 4126-1 and ISO 4126-5 standards, covering flow capacity, opening characteristics, and seat leakage.
- Sealing Reliability: Optional PTFE or metal-to-metal seat seals ensure tight shut-off up to 95% of set pressure. Backseated design prevents media leakage to the bonnet.
- Customizable Options: OEM services include custom spring ranges, lifting lever, test gag, stainless steel lifting device, and special end connections.
- Easy Maintenance: Top-guided design with simple disassembly for inspection and cleaning. All seal parts are replaceable.
| Parameter | Specification |
|---|---|
| Valve Size (DN) | 50, 80, 100, 150, 200 (Custom DN25-DN300 available) |
| Pressure Rating | Class 150/300, PN16/PN25/PN40 |
| Set Pressure Range | 0.5 – 10 bar (lower/higher upon request) |
| Operating Temperature | -20°C to +200°C (higher with special materials) |
| Flow Capacity (Cv) | From 1.5 to 120 (depending on size/pressure) |
| Seat Leakage | Class IV per ISO 4126-5 |
| End Connection | Flanged (ANSI/DIN/JIS) or custom |
Customer Benefits: By choosing our marine safety valve, you gain a reliable overpressure protection solution that reduces downtime and maintenance costs. The 316L stainless steel construction ensures long service life in corrosive marine environments, minimizing replacement frequency. The flanged connection simplifies installation and eliminates the need for additional adapters. ISO 4126 compliance guarantees consistent performance, meeting international regulatory requirements for marine and offshore applications. Our OEM capabilities allow you to tailor the valve to your exact system specifications, while our strict quality control – backed by ISO9001 certification – ensures every valve undergoes hydrostatic, pneumatic, and seat leakage tests before shipment.
As a trusted manufacturer with annual exports exceeding US$1 million, Shanghai Zhibang Valve has supplied safety valves to clients in North America, Europe, the Middle East, and Oceania. We ship from Shanghai, Guangzhou, Hong Kong, and Beijing ports, ensuring timely delivery. Our engineering team is available for technical support, including pressure setting calculations, valve selection, and installation guidance. We are committed to providing high-quality, cost-effective solutions for your marine safety needs.
Trusted by global clients: Over 8 years of manufacturing experience, ISO9001 factory, serving 15+ international markets. Contact us for OEM/ODM inquiries, custom valve configurations, or bulk pricing. Your satisfaction is our priority.
Frequently Asked Questions (FAQ)
- Q: Why is 316L stainless steel used for the body? A: 316L has molybdenum addition, providing superior resistance to chloride pitting and crevice corrosion, making it ideal for marine and offshore environments where saltwater exposure is common.
- Q: Can the pressure setting be adjusted in the field? A: Yes, the valve is factory-set to your specified pressure, but the spring compression can be adjusted within a limited range. For major changes, we recommend ordering a new spring or contacting us for recalibration.
- Q: Do you offer OEM services for custom sizes or pressure ranges? A: Absolutely. We are an OEM manufacturer and can customize valve size, connection type, pressure range, material (e.g., Hastelloy, Monel), and accessories according to your drawings or specifications.
- Q: What certifications are included with the valve? A: Each valve is supplied with a material certificate (EN 10204 3.1), hydrostatic test report, and compliance certificate to ISO 4126. Our factory is ISO9001 certified. Additional third-party inspection (e.g., DNV, BV, ABS) is available upon request.
- Q: What is the typical lead time for standard valves? A: For standard sizes (DN50-DN200) and common pressure settings, lead time is 15-25 working days. Custom orders may require 30-40 working days depending on complexity.
- Q: How should the valve be installed? A: The valve should be mounted vertically with the inlet above the system. Ensure the discharge piping is properly supported and directed away from personnel. A drip pan or drain line is recommended for condensate. Refer to our installation manual for details.
- Q: What maintenance is required? A: Periodic inspection of the valve for leaks, corrosion, and debris is recommended. The spring and seal should be checked annually. We provide spare parts kits and maintenance guides.
- Q: Can the valve be used for steam or gas applications? A: Yes, the valve is suitable for steam, air, and other non-corrosive gases. For steam, ensure the materials are compatible with high-temperature services. We offer optional high-temperature seals.
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