GB/T 589 Marine Bronze Check Valve | Seawater Corrosion Resistant
Premium bronze check valve for corrosive environments. Ideal for seawater and freshwater pipelines. Stops reverse flow instantly. Offers long service life in harsh salt conditions.
Accreditation and Certificates:
Salt water destroys standard valves quickly. The GB/T 589 uses a bronze body to fight corrosion. This material stands up to seawater erosion year after year. The valve operates automatically. Fluid pushes the disc open. Gravity pulls it shut when flow stops. This protects your seawater cooling pumps from damage. It also works well with fuel and low-pressure steam.
Product Drawings：
Technical Specifications：
| Model | Nominal Pressure (PN) MPa | Nominal Diameter (DN) mm |
| A, B | 1 | 65–150 |
| 1.6 | 125 | |
| 2.5 | 20–100 | |
| AS, BS | 0.6 | 15–125 |
| 1.6 | 65–125 | |
| 2.5 | 15–100 |
Key Features：
- Bronze Construction: Excellent anti-corrosion properties.
- Automatic Protection: Stops backflow immediately.
- Wide Compatibility: Handles water, oil, and steam.
- Durable Design: Suitable for long-term marine use.
Applications：
- Seawater Cooling: Protects engines and generators.
- Ballast Systems: Prevents tank cross-flow.
- Bilge Pumping: Stops dirty water return.
Installation & Maintenance：
Installation: Check the flow direction arrow on the body. Install with flange gaskets for a tight seal.
Maintenance: Inspect the disc hinge for free movement. Remove salt buildup during dry dock.
Custom Options Available：
We provide customization services based on international standards such as ANSI, JIS, and DIN, ensuring compatibility with different global market requirements.
FAQ ：
Q1: What is the max temp for this bronze valve?
A1: It operates safely up to 250°C.
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