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Help CenterCertified Marine Self Closing Drain Valve Bronze Threaded Compliant With Marine Standards
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Shanghai Zhibang Valve Manufacture Co., Ltd., established in 2016 and headquartered in Shanghai, China, is a professional manufacturer dedicated to producing high-quality marine valves. Our Certified Marine Self Closing Drain Valve Bronze Threaded is designed to meet strict marine standards, ensuring reliable performance in demanding shipboard environments. With an annual export value of US$1 million to US$1.5 million, we serve markets across North America, South America, Europe, Asia, Africa, and Oceania, delivering valves that combine durability, safety, and compliance.
This self-closing drain valve is crafted from premium bronze, offering excellent corrosion resistance in saltwater and humid conditions. The threaded connection simplifies installation and maintenance, while the self-closing mechanism automatically shuts off the flow when released, preventing accidental spills or flooding. Whether you need a drain valve for bilge systems, tank outlets, or deck drainage, this product provides a dependable solution for marine applications.
Key Features & Benefits:
- Self-Closing Mechanism: Spring-loaded design ensures immediate shut-off, enhancing safety on board.
- Bronze Construction: Resists corrosion, dezincification, and erosion, extending service life.
- Threaded Connection: Available in NPT, BSP, or BSPT threads for easy integration with existing piping.
- Marine Standards Compliance: Manufactured in accordance with recognized marine specifications (e.g., SOLAS, ABS, Lloyd's register – optional upon request).
- Versatile Usage: Suitable for fresh water, seawater, oil, and non-aggressive fluids.
- Space-Saving Design: Compact body allows installation in tight spaces.
- Low Maintenance: Simple construction reduces downtime and repair costs.
Technical Specifications:
| Material | Bronze (C95800 or equivalent) |
| Connection | Threaded (NPT / BSP / BSPT) |
| Size Range | 1/2" to 2" (DN15 to DN50) |
| Pressure Rating | PN10 / PN16 (optional) |
| Temperature Range | -20°C to +150°C (depending on seal) |
| Seal Material | NBR, EPDM, or PTFE (optional) |
| Standards | Marine Standard Compliant (ISO9001 certified factory) |
| Testing | 100% hydrostatic and seat leakage tested |
Detailed Product Advantages:
- Enhanced Safety: The self-closing design prevents backflow and accidental discharge, critical in marine environments where water ingress can cause stability issues.
- Durability in Marine Conditions: Bronze alloy resists pitting and stress corrosion cracking caused by saltwater, reducing replacement frequency.
- Ease of Installation: Threaded ends allow quick connection without specialized welding or flanging, saving labor time.
- Global Compatibility: Thread options cater to international vessel standards (American, British, European).
- Customizable Options: Available with different handle types (lever, T-handle, or wheel) and seal materials to suit specific fluid requirements.
- Cost-Effective: Competitive pricing without compromising quality, thanks to our efficient manufacturing processes.
Trust & Certification:
Shanghai Zhibang Valve Manufacture Co., Ltd. operates under an ISO9001:2015 quality management system, ensuring consistent product quality from raw material procurement to final inspection. Our marine self-closing drain valves undergo rigorous testing, including hydrostatic pressure tests and seat leakage tests, to guarantee performance. With over 8 years of export experience and a growing global footprint, we have supplied valves to shipyards, offshore platforms, and marine engineering firms across 20+ countries. We are committed to providing reliable products and responsive after-sales support.
Frequently Asked Questions (FAQ):
-
Q: What marine standards does this valve comply with?
A: Our valve is manufactured to meet common marine standards such as SOLAS, ABS, and Lloyd's Register requirements. Specific certifications can be provided upon request, subject to order quantity. -
Q: Can this valve be used for fuel oil or chemical fluids?
A: Yes, but the seal material must be selected accordingly. For fuel oil, we recommend NBR or FKM seals; for aggressive chemicals, PTFE seals are available. Please consult our sales team for compatibility. -
Q: What is the typical lead time for this product?
A: For standard sizes (1/2" to 1"), lead time is 15–25 working days. Larger sizes or custom orders may require 30–45 days. We offer expedited shipping for urgent orders. -
Q: Do you provide samples before bulk order?
A: Yes, sample orders are welcome. We can provide one sample unit at a reasonable cost, which will be deducted from the first bulk order. Shipping is at buyer's expense. -
Q: How is the valve's self-closing mechanism tested?
A: Each valve is manually tested for spring force and shut-off integrity. The closing time is calibrated to ensure immediate closure under flow conditions. -
Q: What port can the goods be shipped from?
A: We ship from Shanghai, Guangzhou, Hong Kong, and Beijing ports, depending on the destination and shipping method. -
Q: Is the valve suitable for high-pressure systems?
A: Our standard pressure rating is PN16 (1.6 MPa). For higher pressures, we can customize the valve with reinforced body and seals. Please provide your working pressure requirements. -
Q: What warranty do you offer?
A: We offer a 12-month warranty from the date of shipment against manufacturing defects. Extended warranty is available upon request.
At Shanghai Zhibang Valve, we prioritize quality and customer satisfaction. Our Certified Marine Self Closing Drain Valve Bronze Threaded is a reliable component for any marine drainage system. Contact us today for a quote or technical support – we look forward to partnering with you.
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