Contact Platform Support
Help Center
Home > Industrial Equipment & Components > Valve > Pressure Reducing Valve > Flanged Marine Audible Self Closing Valve DN15 DN50 1.6 4.0MPa Cast Steel Body Safety Valve
Flanged Marine Audible Self Closing Valve DN15 DN50 1.6 4.0MPa Cast Steel Body Safety Valve
Product Spotlights
The Flanged Marine Audible Self Closing Valve combines a cast steel body, self-closing mechanism, and integral audible alarm for immediate overpressure detection. Available in DN15/DN50 with 1.6MPa or 4.0MPa ratings, it ensures safety and reliability in marine systems. ISO9001 certified, customizable flanges, and easy maintenance make it a trusted choice for shipbuilders and operators worldwide.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
Get Latest Price
Material:
Other, Cast Steel
Standard:
ISO9001
Size:
DN15 / DN50
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
Related Products
-
Marine Audible Self Closing Valve DN15 DN50 PN1.6 4.0MPa Cast Steel Flanged DNV BV CertifiedNegotiableMOQ: 1 Unit -
Cast Steel Marine Audible Self Closing Valve DN15 DN50 PN1.6 4.0MPa With Audible AlarmNegotiableMOQ: 1 Unit
-
Marine Audible Self Closing Valve Cast Steel DN15 DN50 PN1.6 4.0MPa Flanged Alarm FunctionNegotiableMOQ: 1 Unit
-
Audible Self Closing Valve for Marine Fuel Systems Cast Steel DN15 DN50 PN1.6 4.0MPa FlangedNegotiableMOQ: 1 Unit
-
Marine Quick Closing Valve for Ship Engine Room Pipeline SafetyNegotiableMOQ: 1 Unit
Material
Other, Cast Steel
Standard
ISO9001
Size
DN15 / DN50
Pressure Rating
1.6 MPa / 4.0 MPa
Connection Type
Flanged
Function
Audible Self-Closing Safety
Application
Marine Industry
Brand
Shanghai Zhibang Valve
Shanghai Zhibang Valve Manufacture Co., Ltd., an ISO9001-certified manufacturer established in 2016, proudly presents our Flanged Marine Audible Self Closing Safety Valve. Designed for critical marine applications, this valve integrates a reliable self-closing mechanism with an audible alert feature, ensuring immediate awareness of pressure events. With cast steel construction and options for DN15 or DN50 sizes at 1.6 MPa or 4.0 MPa, it delivers robust performance and safety compliance for demanding environments.
Key Features and Technical Specifications
- Material Excellence: Cast steel body offers high strength, corrosion resistance, and durability in marine atmospheres. Optional stainless steel internals available upon request.
- Self-Closing Mechanism: Automatically closes after pressure relief, preventing backflow and system contamination. The spring-loaded design ensures reliable resetting.
- Audible Alarm: Integrated whistle or sound device alerts operators when the valve opens, providing immediate notification of overpressure conditions.
- Flanged Connections: Standard flanges conform to common marine piping systems (e.g., DIN, ANSI). Custom flange dimensions are available on request.
- Pressure Range: Rated for 1.6 MPa (232 psi) and 4.0 MPa (580 psi), covering a wide spectrum of low-to-medium pressure marine applications.
- Size Options: Available in DN15 (1/2") and DN50 (2") nominal diameters, with other sizes customizable.
- Application Versatility: Ideal for shipboard systems including fuel oil, lubricating oil, cooling water, and compressed air lines.
Technical Parameters Table
| Parameter | Specification |
| Body Material | Cast Steel (WCB / WCC equivalent) |
| Seat Material | Stainless Steel (304 or 316 upon request) |
| Nominal Diameter | DN15 (1/2") / DN50 (2") |
| Pressure Rating | 1.6 MPa / 4.0 MPa |
| Connection Type | Flanged (RF / FF) |
| Operating Temperature | -20°C to +200°C (standard) |
| Audible Alarm | Integrated whistle (≥85 dB at 1m) |
| Certification | ISO9001 |
Benefits for Your Marine Applications
- Enhanced Safety: The audible alarm ensures immediate crew response to overpressure events, reducing risk of equipment damage or accidents.
- Reliable Performance: Cast steel body and self-closing design deliver long service life even in harsh saline environments.
- Easy Installation: Flanged connections allow quick integration into existing piping systems without special tools.
- Low Maintenance: Simple internal mechanism requires minimal periodic inspection. Spare parts are readily available.
- Compliance Ready: Designed to meet common marine classification society requirements (e.g., Lloyd’s, DNV, ABS) – certification can be provided upon request.
Shanghai Zhibang Valve has been a trusted manufacturer since 2016, with an annual export value between US$1 million and US$1.5 million. Our ISO9001 quality management system ensures consistent product excellence. We serve clients across North America, South America, Europe, Asia, Africa, and Oceania, shipping from ports including Shanghai, Guangzhou, Hong Kong, and Beijing. Our cast steel marine audible self-closing valves are backed by rigorous testing and a commitment to customer satisfaction. Choose Shanghai Zhibang for reliable safety solutions that protect your marine assets and personnel. Contact us today for a quote or technical consultation.
Frequently Asked Questions (FAQ)
-
Q: What is the difference between 1.6 MPa and 4.0 MPa versions?
A: The pressure rating determines the maximum working pressure. 1.6 MPa suits low-pressure systems (e.g., cooling water), while 4.0 MPa is for higher pressure fuel or hydraulic lines. Both are available in DN15 and DN50. -
Q: Can the audible alarm be silenced or adjusted?
A: The alarm is fixed at a factory-set decibel level (≥85 dB) to ensure audibility in engine rooms. It cannot be silenced automatically, but the valve closes quickly after the pressure drops, stopping the sound. -
Q: Is this valve suitable for seawater lines?
A: Yes, with optional stainless steel internals and proper coating. Cast steel with epoxy coating is standard for marine environments. For seawater, we recommend upgrading to 316 stainless steel trim. -
Q: What flange standards are available?
A: We offer standard flanges per DIN, ANSI, JIS, or GB. Please specify your requirement when ordering. Custom dimensions are possible with a minimum order quantity. -
Q: How do I install and maintain the valve?
A: Installation is straightforward: bolt the flanges with appropriate gaskets. Maintenance includes periodic checking of the spring tension and cleaning the audible port. A detailed manual is provided with each valve. -
Q: Does the valve meet any classification society approvals?
A: Our valves are designed to meet the requirements of Lloyd’s Register, DNV GL, ABS, and CCS. We can provide certified materials and test reports upon request. Factory inspection is also welcome. -
Q: What is the lead time for production?
A: Standard sizes (DN15/DN50) are typically in stock and ship within 7-15 days. Custom orders may take 4-6 weeks depending on specifications. -
Q: Can I get a sample before bulk order?
A: Yes, sample orders are accepted. We can provide a single unit for testing and evaluation. Sample cost is negotiable and refundable upon bulk order.
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
You May Also Like
-
Marine Quick Closing Valve for Fuel Oil System Emergency Shut-offNegotiableMOQ: 1 Unit
-
Marine Quick Closing Valve 316L Stainless Steel DN65 PN16 Flanged EndNegotiableMOQ: 1 Unit
-
Electric Actuated Marine Quick Closing Valve 220V AC DN100 PN10NegotiableMOQ: 1 Unit
-
Marine Quick Closing Valve With 1 Year Warranty Mill Test Report AvailableNegotiableMOQ: 1 Unit
-
Manual Override Marine Quick Closing Valve Cast Steel DN40 PN25 FlangedNegotiableMOQ: 1 Unit
-
Pneumatic Actuated Marine Quick Closing Valve 304 Stainless Steel DN50 PN40 FlangedNegotiableMOQ: 1 Unit
-
Zhibang Valve Marine Quick Closing Valve BV RINA Certified Remote Emergency ClosingNegotiableMOQ: 1 Unit
-
Hydraulic Marine Quick Closing Valve DN80 PN25 With Remote ControlNegotiableMOQ: 1 Unit
-
Zhibang Valve Marine Pneumatic Quick Closing Valve DN25-DN100 PN1.6-6.4MPa Cast Steel Flanged LR ABS Certified Emergency ShutoffNegotiableMOQ: 1 Unit
-
LR ABS Approved Marine Pneumatic Quick Closing Valve DN80 PN1.6MPa Cast Steel Body Flanged Connection Quick Closing Time ≤2sNegotiableMOQ: 1 Unit
