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Home > Industrial Equipment & Components > Valve > Pressure Reducing Valve > Marine Audible Self Closing Valve With Mill Test Report Cast Steel DN15 DN50 PN1.6 4.0MPa Flanged
Marine Audible Self Closing Valve With Mill Test Report Cast Steel DN15 DN50 PN1.6 4.0MPa Flanged
Product Spotlights
Shanghai Zhibang's Marine Audible Self Closing Valve combines a cast steel body, flanged ends, and an audible self-closing mechanism for reliable backflow prevention. Available in DN15-DN50, PN1.6/4.0MPa, each unit includes a Mill Test Report for material traceability. ISO9001 certified factory ensures consistent quality. Ideal for marine systems where safety and audible feedback are critical.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
Get Latest Price
Material:
Other, Cast Steel
Standard:
ISO9001 certified factory
Size Range:
DN15 to DN50
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Material
Other, Cast Steel
Standard
ISO9001 certified factory
Size Range
DN15 to DN50
Pressure Rating
PN1.6 / 4.0MPa
Connection Type
Flanged
Function
Audible self-closing (non-return)
Application
Marine piping systems
Test Report
Mill Test Report included
Shanghai Zhibang Valve Manufacture Co., Ltd., established in 2016, is a professional manufacturer specializing in industrial valves. With an annual export value of US$1 million to US$1.5 million and markets spanning over 15 regions including North America, Europe, Southeast Asia, and the Middle East, we are committed to delivering reliable valve solutions. Our Marine Audible Self Closing Valve is designed for critical marine applications where backflow prevention and operational safety are paramount. Featuring a cast steel body, flanged ends, and a unique audible self-closing mechanism, this valve ensures positive shut-off with an audible indicator, giving operators confidence in system integrity. Every unit is supplied with a Mill Test Report for material traceability and quality assurance.
Key Features & Technical Specifications
- Audible Self-Closing Mechanism: The valve produces a distinct sound when closing, confirming positive shut-off – ideal for systems where visual inspection is difficult.
- Durable Cast Steel Construction: High-strength cast steel body (ASTM A216 WCB or equivalent) ensures long service life in marine environments, resistant to corrosion and pressure surges.
- Pressure Ratings: Available in PN1.6 (Class 150) and 4.0MPa (Class 300) versions, suitable for a wide range of marine piping systems.
- Flanged Ends: Standard flanged connections (EN 1092-1 or ASME B16.5) for easy installation and maintenance.
- Size Range: DN15 to DN50 (1/2" to 2") to accommodate various pipe diameters.
- Mill Test Report Included: Each valve comes with a documented material test certificate, ensuring compliance with industry standards and customer requirements.
- Low Maintenance Design: Simple internal structure reduces wear and tear, minimizing downtime.
| Parameter | Specification |
|---|---|
| Material | Cast Steel (ASTM A216 WCB) |
| Size Range | DN15 – DN50 (1/2" – 2") |
| Pressure Rating | PN1.6 MPa / 4.0 MPa (Class 150 / 300) |
| Connection | Flanged (EN 1092-1 / ASME B16.5 RF) |
| End Connection | Raised face flanged |
| Operation | Automatic (self-closing, audible) |
| Application | Marine, offshore, shipbuilding, water treatment |
| Certification | ISO9001 (factory), Mill Test Report per valve |
Advantages for Your Marine System
- Enhanced Safety: The audible closing feature alerts crew to valve operation, preventing accidental backflow and potential flooding.
- Reliable Material Traceability: Each valve includes a Mill Test Report, ensuring the cast steel meets chemical and mechanical property requirements – a must for marine classification societies.
- Versatile Pressure Options: Choose between PN1.6 for low-pressure systems or PN4.0 for higher-pressure applications, offering flexibility in design.
- Easy Installation: Standard flanged connections allow quick mounting without special tools, reducing labor costs.
- Proven Export Quality: Our products are shipped to over 15 global markets, including strict maritime regions like Eastern Europe and Southeast Asia, demonstrating consistent quality.
Why Choose Shanghai Zhibang Valve?
Since 2016, we have grown into a reliable manufacturer with an annual export value of US$1 million to US$1.5 million. Our ISO9001-certified quality management system ensures each valve undergoes rigorous testing before shipment. We ship from Shanghai, Guangzhou, Hong Kong, and Beijing ports, providing flexible logistics. With a strong presence in North America, Europe, Southeast Asia, Africa, and the Middle East, our valves are trusted by shipyards and marine engineering companies worldwide. We stand behind every product with a mill test report and responsive after-sales support.
Whether you require a single valve for a maintenance project or bulk orders for new vessel construction, we can customize sizes and pressure ratings according to your specifications. Contact us today to request a quote or discuss your marine valve requirements.
Frequently Asked Questions (FAQ)
-
What does "audible self-closing" mean?
The valve incorporates a mechanism that produces a distinct clicking or tapping sound when the disc closes, providing an audible confirmation of proper shut-off without requiring visual inspection. -
Is the Mill Test Report included for every valve?
Yes, each valve is supplied with a Mill Test Report (MTR) that certifies the material chemical composition and mechanical properties of the cast steel body. -
Can this valve be used for non-marine applications?
While designed for marine systems, it can be used in any industrial piping where backflow prevention and audible confirmation are needed, such as water treatment or HVAC. -
What are the available flange standards?
We offer flanges according to EN 1092-1 (PN6, PN10, PN16, PN25, PN40) or ASME B16.5 (Class 150, 300). Please specify your requirement. -
What is the operating temperature range?
The cast steel valve is suitable for temperatures from -20°C to +350°C, though actual limits depend on the specific pressure rating and gasket material. -
How do I install the valve correctly?
Ensure flow direction matches the arrow on the body. Use proper gaskets and tightening torque for flanged connections. No special tools are required. -
Do you provide certificates for marine classification societies (e.g., DNV, LR, ABS)?
We can provide additional third-party inspection reports upon request. Our mill test report already meets basic material traceability needs. -
What is the lead time for standard sizes?
Typical lead time for DN15-DN50 valves is 15–20 working days after order confirmation. Rush orders are negotiable.
Send Inquiry to This Supplier
1Yr
Business Type
Manufacturer
Year Established
2016
Annual Export Value
US$1 Million - US$1.5 Million
Product Certifications
ISO9001
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