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Help CenterJIS Standard Non-rising Gate Valve With FC200 Body and Bronze Disc for Marine Applications
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Chengxin Valve's JIS Standard Non-rising Gate Valve combines robust FC200 cast iron construction with precision-engineered bronze disc components, specifically engineered for demanding marine applications. This valve delivers exceptional shut-off performance in seawater cooling systems, ballast piping, and firefighting installations aboard vessels. With its JIS B2071/B2081 compliance, it meets stringent Japanese industrial standards required by international shipbuilding specifications.
The non-rising stem design ensures compact installation in confined engine room spaces while preventing stem thread corrosion in saline environments. Our proprietary bronze disc formulation resists pitting and dezincification even with prolonged exposure to brackish water, significantly extending service intervals compared to conventional valves. Third-party tested to withstand 10,000+ operation cycles without leakage, this valve reduces maintenance costs and downtime for fleet operators.
| Model Series | Pressure Rating | Temperature Range | Disc Material |
|---|---|---|---|
| JGV-FC200 | JIS 10K/16K/20K | -20°C to 200°C | CAC406 Bronze |
| JGV-FC200H | JIS 20K | -20°C to 150°C | CAC407 Bronze |
Key engineering features include:
- Corrosion-resistant design: FC200 body with epoxy coating (200μm DFT) and bronze disc prevent galvanic corrosion
- Bidirectional sealing: Resilient wedge seat ensures zero leakage in both flow directions
- Low-torque operation: PTFE-embedded stem bushings reduce operating force by 40% versus standard valves
- Maintenance-friendly: Replaceable gland packing without system depressurization
- Shock resistance: Absorbs water hammer pressures up to 2.5x rated working pressure
For offshore platform applications, optional anodic protection kits provide additional corrosion control in submerged conditions. All valves undergo hydrostatic testing at 1.5x rated pressure and pneumatic seat testing per MSS SP-61 protocols. Customized face-to-face dimensions are available for retrofit projects in existing piping systems.
Frequently Asked Questions:
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Q: What distinguishes JIS valves from ANSI counterparts?
A: JIS valves feature metric dimensions and pressure ratings aligned with Japanese shipbuilding standards, particularly flange drilling patterns and face-to-face lengths that differ from ANSI B16.10 specifications. -
Q: Can this valve handle seawater with high sediment content?
A: Yes, the bronze disc and wedge design prevents sediment accumulation. The valve is tested with 15,000 ppm suspended solids without operational impairment. -
Q: Are locking devices available for this valve?
A: Padlockable handwheel options (JGV-FC200L series) comply with ISPS security requirements for marine applications. -
Q: What is the lead time for DN400 valves?
A: Standard DN400 valves ship within 45 days; expedited production is available for urgent projects. -
Q: Do you provide pressure testing certificates?
A: All valves include Mill Test Certificates per EN 10204 3.1, with optional third-party inspection available.
Backed by Chengxin Valve's 30+ years of metallurgical expertise, this JIS gate valve delivers reliable performance in critical marine systems. Our manufacturing facilities maintain ISO9001 quality systems with full material traceability from casting to final assembly. Contact our technical team today for customized solutions matching your specific piping schematics and operational requirements.
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