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Help CenterMarine Grade Check Valve With Flange Ends and Limit Feedback ANSI B16.5
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Shanghai Zhibang Valve Manufacture Co., Ltd., established in 2016 and ISO9001 certified, delivers precision-engineered marine solutions for global industries. Our ANSI B16.5 compliant check valves feature integrated limit feedback mechanisms, engineered to withstand corrosive marine environments while providing real-time operational status. With over $1M annual exports to 5 continents, we bring naval-grade reliability to critical fluid systems.
This marine-grade check valve combines robust construction with intelligent monitoring capabilities:
- Corrosion-resistant construction using 316L stainless steel bodies and duplex seats
- Instant backflow prevention with low 0.15-0.3 PSI cracking pressure
- Real-time position verification through IP67-rated limit switches
- Zero-leak performance with fire-safe API 607 metal sealing
Technical specifications include:
| Parameter | Specification |
|---|---|
| Pressure Rating | ANSI Class 150/300 (PN16/PN40) |
| Temperature Range | -29°C to 425°C (-20°F to 800°F) |
| Size Availability | DN15 to DN600 (½" to 24") |
| Face-to-Face Dimensions | ASME B16.10 compliant |
| Limit Switch Options | SPDT contacts, NEMA 4X enclosure |
The flange end design ensures bolt-for-bolt compatibility with existing pipeline infrastructures, while the position transmitter enables predictive maintenance scheduling. Applications include bilge systems, fuel transfer lines, ballast control, and offshore platform safety systems where valve status confirmation is critical.
Trusted by operators across 15 international markets including North American shipyards and Southeast Asian refineries, our valves undergo rigorous hydrostatic and cryogenic testing. With ISO9001-certified manufacturing and direct export capabilities from Shanghai/Guangzhou ports, we guarantee 18-month performance warranties and 30-day lead times on standard configurations.
Frequently Asked Questions:
-
Q: What distinguishes marine-grade valves?
A: Marine-grade valves feature enhanced corrosion resistance through material selection (316L SS/Alloy 20) and specialized coating systems for saltwater environments. -
Q: How does the limit feedback function work?
A: Mechanical actuators trigger electrical switches when the disc reaches fully open/closed positions, sending signals to control rooms. -
Q: Are alternative flange standards available?
A: DIN, JIS, or GOST flanges can be provided upon request with project-specific documentation. -
Q: What maintenance intervals are recommended?
A: Five-year service cycles under normal conditions; inspection frequency should increase in high-solids applications. -
Q: Can custom materials be accommodated?
A: Yes, we provide Hastelloy, Monel, and titanium configurations for specialized chemical services. -
Q: What documentation accompanies shipments?
A: All valves include material certificates, test reports, and installation manuals compliant with EN 10204 3.1 standards.
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