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Help CenterSeawater Desalination Marine Bronze Globe Check Valve DN15-DN50 PN1.0-2.5MPa Flanged
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Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to present our high-performance Seawater Desalination Marine Bronze Globe Check Valve (DN15-DN50, PN1.0-2.5MPa, Flanged). Designed specifically for the demanding seawater desalination industry, this valve combines the corrosion resistance of marine bronze with the reliable functionality of a globe check valve. Our advanced manufacturing processes and strict quality control ensure long service life and minimal maintenance, making it a cost-effective solution for reverse osmosis plants, offshore platforms, and marine piping systems.
The valve's unique structure prevents backflow while offering precise flow modulation, addressing the need for both safety and control in critical seawater applications. Every unit is engineered to withstand the harsh saline environment, high pressure, and temperature fluctuations typical of desalination processes. Trust Zhibang's expertise—backed by ISO9001 certification and over 8 years of valve manufacturing experience—to deliver a product that meets the highest standards of durability and performance.
Key Features & Technical Specifications
- Material Excellence: Marine bronze (aluminum bronze or tin bronze) provides exceptional resistance to saltwater corrosion, dezincification, and erosion.
- Size & Pressure Flexibility: Available in DN15 to DN50 with pressure ratings from PN1.0 to PN2.5 MPa, suitable for low to medium pressure desalination systems.
- Flanged Connection: Standard flanged ends (ANSI/EN/DIN optional) ensure easy installation and leak-proof sealing in piping systems.
- Globe Check Valve Design: Combines the functions of a globe valve (throttling/control) and a check valve (backflow prevention) into one compact unit — reduces space and installation cost.
- Low Flow Resistance: Optimized internal flow path minimizes pressure drop, improving system energy efficiency.
- Zero Backflow Leakage: Precision-machined seat and disc ensure bubble-tight sealing when closed, protecting pumps and downstream equipment.
- Easy Maintenance: Top-entry design allows for quick inspection and replacement of internal components without removing the valve from the pipeline.
Technical Parameters (Typical)
| Parameter | Value |
|---|---|
| Nominal Diameter (DN) | 15, 20, 25, 32, 40, 50 |
| Nominal Pressure (PN) | 1.0 MPa / 1.6 MPa / 2.5 MPa |
| Body Material | Marine Bronze (ASTM B148 C95800 or equivalent) |
| Disc Material | Marine Bronze / Stainless Steel |
| Seat Material | Marine Bronze / PTFE |
| Connection Standard | Flanged (ANSI B16.5 / EN 1092-2 / DIN 2501) |
| Applicable Medium | Seawater, Brackish water, Chlorinated water |
| Working Temperature | -10°C ~ +150°C (customizable upon request) |
Advantages & Customer Benefits
- Reduced Total Cost of Ownership: The dual-function globe-check design eliminates the need for separate valves, saving procurement and installation costs.
- Longer Service Life: Marine bronze's natural resistance to seawater corrosion extends valve life significantly compared to cast iron or carbon steel alternatives.
- Enhanced System Safety: Reliable backflow prevention protects expensive RO membranes and high-pressure pumps from damage.
- Energy Savings: Lower pressure drop contributes to reduced pump energy consumption in continuous desalination operations.
- Customizable Options: Available with various flange standards, trim materials (SS316, duplex), and actuation (manual gearbox, pneumatic, electric) to suit specific project requirements.
Why Choose Shanghai Zhibang Valve Manufacture Co., Ltd.?
Since our establishment in 2016, we have been dedicated to manufacturing high-quality valves for global clients. Our annual export value of US$1 Million – US$1.5 Million reflects strong demand and trust from markets across North America, South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East. We hold ISO9001:2015 certification for quality management, ensuring consistent product performance. Every seawater desalination valve undergoes rigorous hydrostatic testing and seat leakage tests before shipment. Our strategically located factory in Shanghai, China allows convenient access to major ports including Shanghai, Guangzhou, Hong Kong, and Beijing for fast worldwide delivery. With a professional sales team and technical support, we are ready to assist with custom specifications, volume orders, and after-sales service.
Frequently Asked Questions (FAQ)
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Q: What is the difference between a globe check valve and a conventional check valve?
A: A globe check valve combines the functions of a globe valve (throttling/regulating flow) and a check valve (preventing backflow). It allows you to control flow rate with the disc position while automatically closing when flow reverses. This dual function reduces the number of valves needed in a system. -
Q: Can this valve handle high salinity seawater for desalination?
A: Yes. Our marine bronze material is specifically selected for its outstanding corrosion resistance to high chloride content, making it ideal for seawater reverse osmosis (SWRO) and thermal desalination processes. -
Q: What flange standards are available?
A: We offer flanges in ANSI B16.5 (Class 150/300), EN 1092-2 (PN10/16/25), and DIN 2501. Custom flange drilling is also available upon request. -
Q: What is the minimum order quantity (MOQ)?
A: Typically 1 piece for samples, and 10–50 pieces for production orders. We can discuss based on your specific requirements. -
Q: Does the valve come with a warranty?
A: Yes, we provide a standard 12-month warranty from the date of shipment against manufacturing defects. Extended warranty options are negotiable. -
Q: Can I get a valve with a pneumatic or electric actuator?
A: Yes, we can supply the globe check valve with an optional actuator (pneumatic diaphragm or electric rotary) for remote or automated control. Please contact our sales team with your specifications. -
Q: How do you ensure product quality?
A: Our ISO9001-certified quality system covers material inspection, dimensional checks, hydrostatic shell test (1.5x rated pressure), seat leakage test (air/water), and final function test. Test reports are provided with each shipment. -
Q: What is the typical lead time?
A: For standard sizes DN15-DN50 and PN1.0-2.5MPa, lead time is 15–25 working days. Custom orders or larger quantities may require 25–35 days.
Contact us today for a competitive quotation or technical specification sheet. With our extensive experience in marine and desalination applications, Shanghai Zhibang Valve is your reliable partner for long-lasting flow control solutions.
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