Compact Design JIS Gate Valve DN50-DN450mm With Bronze Seat for High Pressure Marine Use

Chengxin Valve presents its Compact Design JIS Gate Valve series engineered specifically for demanding marine applications. With bronze seat construction and compliance with JIS standards, these valves deliver exceptional shut-off performance in high-pressure shipboard systems. The space-saving design makes them ideal for engine rooms and confined spaces where reliability is non-negotiable.

Manufactured since 1993 in our 50,000+ sqm facility, these valves combine Japanese industrial standards with robust cast iron construction. The DN50-DN450mm size range covers most marine piping requirements while the corrosion-resistant bronze seats ensure longevity in saltwater environments. Below are key technical specifications:

Engineering Advantages:

• ✓ Corrosion-resistant seating – Bronze-on-bronze contact surfaces prevent galling and ensure bubble-tight closure even after prolonged inactivity
• ✓ Reduced torque operation – Precision-machined trapezoidal threads minimize operating effort by 30% compared to conventional designs
• ✓ Backseat protection – Secondary sealing prevents stem leakage when fully open, critical for hazardous fluid containment
• ✓ Non-rising stem design – Saves vertical installation space while providing visual position indication

These valves undergo rigorous quality control including hydrostatic tests at 1.5x rated pressure and dimensional verification per JIS B2001. Our manufacturing certifications include ISO9001 for quality management and OHSAS18001 for workplace safety standards.

Marine Application Scenarios:

• • Main engine cooling water isolation
• • Ballast system control
• • Firefighting pipeline networks
• • Fuel oil transfer lines
• • Bilge pumping systems

With over 200 employees and US$1-1.5 million annual export experience, we ship globally through major Chinese ports including Shanghai and Ningbo. Our technical support team provides installation guidance and documentation in English, Japanese, and Russian.

Frequently Asked Questions:

• Q: Are these valves suitable for seawater applications?
  A: Yes, the bronze seat material offers excellent corrosion resistance in marine environments. Regular maintenance is recommended for extended service life.
• Q: What is the lead time for DN300 valves?
  A: Standard sizes ship within 15 working days. Non-stock sizes require 30-45 days for production.
• Q: Can you provide valves with different face-to-face dimensions?
  A: Custom face-to-face lengths are available upon request for bulk orders exceeding 20 units.
• Q: Do you offer actuated versions?
  A: Electric or pneumatic actuators can be supplied as optional accessories. Please specify torque requirements when inquiring.
• Q: What documentation accompanies shipments?
  A: Each valve includes material certificates, test reports, and operation manuals compliant with maritime regulations.

Contact our export department today for technical drawings and competitive pricing. With established markets in South America and the Middle East, we understand the critical demands of marine operations and stand ready to support your vessel construction or maintenance projects.