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Help CenterBronze Check Valve, Seawater Pipeline, Flanged PN10/16, Disc Type, 316 Stainless Steel Trim
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Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to present our Bronze Check Valve, Seawater Pipeline, Flanged PN10/16, Disc Type, 316 Stainless Steel Trim – a robust solution designed specifically for demanding marine and offshore applications. With over 8 years of manufacturing excellence since 2016, we have delivered high-quality valves to markets across North America, Europe, Southeast Asia, and more. Our check valve combines the corrosion resistance of bronze with the durability of 316 stainless steel trim, ensuring reliable backflow prevention in seawater systems. Whether you need a standard PN10 or PN16 flange rating, this valve is engineered to perform under pressure while minimizing maintenance costs.
The disc-type design allows for swift, low-pressure drop closure, protecting pumps and pipelines from water hammer. The 316 stainless steel trim resists pitting and crevice corrosion in saline environments, extending service life. Each valve undergoes strict quality control in our Shanghai facility, backed by ISO9001 certification. We offer flexible port options (Shanghai, Guangzhou, Hong Kong, Beijing) and customizable sizes to meet your project requirements.
Key Features & Technical Specifications
- Durable Bronze Body – Excellent resistance to seawater corrosion, suitable for long-term immersion.
- 316 Stainless Steel Trim – Disc, seat, and spring (if applicable) made from SS316 for superior anti-corrosion performance.
- Flanged Ends PN10/PN16 – Compatible with standard EN 1092-1 flanges, easy to install and maintain.
- Disc Type Design – Low flow resistance, fast response to reverse flow, reduces water hammer effect.
- Full Bore Option – Available for minimal pressure loss (consult factory).
- Non-Slam Operation – Suitable for systems with pulsating flow.
- Temperature Range – -20°C to +150°C (depending on media).
- Application – Seawater pipelines, desalination plants, offshore platforms, shipbuilding, ballast systems.
| Parameter | Specification |
|---|---|
| Body Material | Bronze (CuSn5Zn5Pb5 or equivalent) |
| Trim Material | 316 Stainless Steel |
| Pressure Rating | PN10 / PN16 (dual rating) |
| Flange Standard | EN 1092-1, Type 11/B1 |
| Size Range | DN50 – DN600 (custom sizes available) |
| Design Standard | BS 5153 / API 594 (optional) |
| Test Pressure | Shell: 1.5 x PN | Seat: 1.1 x PN |
| Media | Seawater, brackish water, brine |
Advantages for Your Business
Choosing our bronze check valve means reduced downtime and lower total cost of ownership. The 316 SS trim provides twice the lifespan of standard brass trims in seawater. The flanged connection simplifies installation and replacement, saving labor time. Additionally, the disc type design minimizes pressure loss, improving system efficiency. Our valves are factory tested to ensure zero leakage, and we provide test certificates upon request.
Trust & Reliability
Shanghai Zhibang Valve has been a trusted manufacturer since 2016, with an annual export value of US$1 Million – US$1.5 Million. Our products are shipped to over 15 major markets including North America, Europe, Africa, and Oceania. We hold ISO9001 certification for our quality management system, ensuring consistent production standards. Every valve is individually tested before packing. We offer competitive pricing and flexible shipping from Shanghai, Guangzhou, Hong Kong, or Beijing. For bulk orders, we can customize packaging and provide technical documentation. Contact us today for a quote or technical consultation – we are ready to support your seawater pipeline projects with reliable, cost-effective check valves.
Frequently Asked Questions
-
Q1: Can this valve be used for freshwater as well?
A: Yes, the bronze body and 316 SS trim are suitable for both seawater and freshwater, but for freshwater only, a less expensive option may be available. We recommend this valve for corrosive environments. -
Q2: What is the difference between PN10 and PN16?
A: PN10 is rated for 10 bar (1.0 MPa) and PN16 for 16 bar (1.6 MPa). Our valve is designed to meet both ratings, but you must specify the required working pressure. The flange drilling pattern differs between PN10 and PN16. -
Q3: Is a spring included in the disc type design?
A: It depends on the model. Our standard disc type check valve uses gravity or spring-assisted closing. Spring-assisted versions are available for horizontal or vertical installations. Please confirm your installation orientation. -
Q4: What sizes are available?
A: Standard sizes range from DN50 to DN600. Larger sizes can be custom manufactured. Please contact our sales team for non-standard dimensions. -
Q5: Do you provide test certificates?
A: Yes, we provide material certificates, hydrostatic test reports, and pressure test certificates upon request. ISO9001 certification documents are also available. -
Q6: What is the lead time for a typical order?
A: For standard sizes and quantities under 50 units, lead time is approximately 15-25 working days. Larger orders or custom specifications may require 30-45 days. Contact us for exact timelines. -
Q7: Can the valve be serviced or repaired?
A: Yes, the disc and seat are replaceable. We offer spare parts kits. For minor repairs, the valve can be disassembled without special tools. Please consult our maintenance manual. -
Q8: Is this valve suitable for high-vibration environments?
A: Yes, the robust bronze body and secure flanged connection provide good vibration resistance. However, for extreme conditions, we recommend using a spring-assisted version to prevent disc flutter.
Contact Shanghai Zhibang Valve today – Let us provide you with a durable, seawater-resistant check valve backed by years of manufacturing experience and global shipping capability.
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