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Help CenterCast Steel Marine Spring Loaded Safety Valve DN15-DN100 PN1.6-16MPa Flanged Adjustable Set Pressure CCS DNV Approved
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Shanghai Zhibang Valve Manufacture Co., Ltd., established in 2016, is a professional manufacturer specializing in high-quality marine valves. Our Cast Steel Marine Spring Loaded Safety Valve DN15-DN100 PN1.6-16MPa Flanged Adjustable Set Pressure is designed to meet the rigorous demands of marine and industrial applications. With over 8 years of manufacturing experience and annual export value exceeding US$1 million, we deliver reliable overpressure protection solutions that ensure safety and operational efficiency. This valve combines robust cast steel construction, precise spring-loaded mechanism, and adjustable set pressure, providing exceptional performance in steam, water, air, and oil systems.
Our safety valve is engineered for critical marine environments where system integrity is paramount. The flanged design allows easy installation and maintenance, while the adjustable set pressure feature enables fine-tuning to match specific system requirements. Approved by CCS (China Classification Society) and DNV (Det Norske Veritas), this product meets the highest international standards for marine safety equipment. Whether used in boiler systems, pressure vessels, or piping networks, it provides reliable relief against overpressure, protecting equipment and personnel.
Key Features & Specifications
- Material: High-grade cast steel body and bonnet, resistant to corrosion and high temperatures.
- Size Range: DN15 to DN100 (1/2" to 4") to suit various pipeline diameters.
- Pressure Rating: PN1.6 to 16MPa (232 to 2320 psi), covering low to high-pressure applications.
- Connection: Flanged ends according to DIN, ANSI, or JIS standards (optional upon request).
- Set Pressure Adjustment: Easy external adjustment using a locking nut, with a calibration range typically ±5% of nominal.
- Spring Material: Stainless steel or alloy steel, fatigue-resistant for long service life.
- Seat Seal: Metal-to-metal or soft seal (optional) for reliable shut-off.
- Temperature Range: Standard -20°C to +400°C (customizable for higher or lower temperatures).
- Applicable Media: Steam, water, compressed air, oil, and non-corrosive gases.
- Certifications: CCS, DNV, ISO9001:2015 quality management system.
Technical Data Table
| Parameter | Value |
|---|---|
| Size | DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80, DN100 |
| Pressure Rating | PN1.6, PN2.5, PN4.0, PN6.4, PN10, PN16 (MPa) |
| Set Pressure Range | 0.1 – 16 MPa (adjustable) |
| Flange Standard | DIN, ANSI 150/300/600, JIS 10K/20K (customizable) |
| Body Material | Cast Steel (WCB, WCC, LCB, or stainless steel options) |
| Spring Material | 50CrVA, 60Si2Mn, or stainless steel |
| Operating Temperature | -20°C to +400°C (higher temperature available on request) |
Advantages & Client Benefits
- Enhanced Safety: Spring-loaded design ensures rapid opening at set pressure, preventing catastrophic failures.
- Long Service Life: Durable cast steel body and high-quality springs minimize maintenance and replacement costs.
- Versatile Application: Suitable for marine boiler systems, steam pipelines, air receivers, and hydraulic systems.
- Easy Adjustment: External adjustment nut allows quick set pressure changes without disassembling the valve.
- Compliance with Marine Standards: CCS and DNV approvals guarantee acceptance by classification societies worldwide.
- Wide Size & Pressure Range: From DN15 to DN100, PN1.6 to 16MPa, covering most marine and industrial needs.
- Global Shipping: Available for shipment from Shanghai, Guangzhou, Hong Kong, and Beijing ports.
At Shanghai Zhibang Valve, we are committed to delivering reliable, certified safety valves that meet the strictest marine standards. Our factory is ISO9001 certified, and each valve undergoes rigorous testing, including pressure testing and set pressure calibration, before dispatch. With an annual export value of US$1 million to US$1.5 million, we serve markets across North America, South America, Europe, Southeast Asia, Africa, and the Middle East.
Choose our Cast Steel Marine Spring Loaded Safety Valve for your next project and benefit from over 8 years of manufacturing expertise, flexible customization, and responsive after-sales support. Contact us today for a quote or technical consultation. We are ready to provide valves tailored to your specific pressure and size requirements, with fast delivery from our global shipping ports.
Frequently Asked Questions (FAQ)
-
Q: What is the standard set pressure range for this valve?
A: The valve can be adjusted from 0.1 MPa to 16 MPa, depending on the spring and pressure rating. Please specify your required set pressure when ordering. -
Q: Is this valve suitable for high-temperature steam application?
A: Yes, the standard version handles temperatures up to 400°C. For higher temperatures (e.g., superheated steam up to 550°C), we can provide high-temperature springs and seal materials upon request. -
Q: Does the valve come with CCS and DNV certificates?
A: Yes, each valve is manufactured under ISO9001 quality system and can be supplied with CCS and DNV type approval certificates. Additional classification society approvals (e.g., ABS, BV, LR) are also available as options. -
Q: What flange standards are available?
A: We offer flanges in DIN, ANSI (150/300/600), and JIS (10K/20K) standards. Custom flange dimensions are also possible for bulk orders. -
Q: Can I adjust the set pressure after installation?
A: Yes, the valve features an external adjustment nut with a lock nut. You can easily increase or decrease the set pressure within the spring's range without removing the valve from the pipeline. -
Q: What is the typical lead time?
A: For standard sizes and pressure ratings, the lead time is 15-25 working days. Custom orders may require 30-40 days. We ship from Shanghai, Guangzhou, Hong Kong, or Beijing. -
Q: Do you provide a warranty?
A: Yes, we offer a 12-month warranty from the date of shipment against manufacturing defects. Extended warranty is available upon request. -
Q: Can I get a sample for testing before bulk order?
A: Yes, sample orders are welcome. We can provide a sample valve with a lead time of 7-10 days. Please note that sample cost and freight will be charged.
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