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Help CenterReliable ANSI Cast Steel Check Valve Safety Valve 10k Low Lift Safety Relief Valve Flange
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Chengxin Valve's ANSI Cast Steel Check Valve delivers uncompromising reliability in preventing backflow across industrial pipeline systems. Engineered to meet rigorous ANSI standards, this valve ensures unidirectional flow control critical for maintaining operational safety and efficiency. With over 25 years of manufacturing expertise, our valves combine robust cast steel construction with precision engineering to withstand high-pressure environments while minimizing maintenance requirements. The swing-type design provides immediate response to flow reversal, protecting pumps, compressors, and other downstream equipment from costly damage.
Core Technical Specifications:
| Feature | Specification |
|---|---|
| Body Material | ASTM A216 WCB Cast Steel |
| Seat Design | Metal-to-metal or soft seat options |
| Disc Type | Full-bore swinging disc |
| Pressure-Temperature Rating | Complies with ASME B16.34 |
Performance Advantages:
Zero-Leakage Security: Precision-machined seats ensure bubble-tight shutoff during reverse flow conditions
Reduced Water Hammer: Weight-controlled disc minimizes slam effects in vertical/horizontal installations
Corrosion Resistance: Optional STL hardfacing extends service life in abrasive media
Low Maintenance: External hinge pin design allows in-line maintenance without system shutdown
Industrial applications include:
Petroleum refining and transmission systems
Chemical processing plants handling aggressive media
Power generation facilities (steam/condensate lines)
Water treatment and distribution networks
Compressed air systems in manufacturing
With ISO-certified manufacturing across our 80,000m² facility, we provide customized solutions including special trim materials, extended bonnets for cryogenic service, and NACE-compliant versions for sour gas applications. Our technical team conducts rigorous hydrostatic and functional testing on every valve prior to shipment.
Leverage Chengxin's three decades of valve engineering expertise to enhance your system reliability. Contact our export department for technical drawings, material certifications, and region-specific packaging requirements. We ship globally via major Chinese ports with comprehensive documentation support. Request a quotation today for project-specific pricing and lead times.
Frequently Asked Questions
Q: What maintenance is required for these valves?
A: Our design requires minimal maintenance - periodic external inspection for leakage and operational checks are typically sufficient. The external hinge pin allows component replacement without removing the valve body.
Q: Can this valve handle slurry or viscous fluids?
A: Yes, with special configurations. We offer wear-resistant trim packages including hard-faced seats and discs, plus optional purge connections to prevent particle accumulation.
Q: Are installation orientation restrictions?
A: While suitable for horizontal and vertical upward flow, vertical downward installations require consultation with our engineers to ensure proper disc orientation.
Q: What documentation accompanies shipments?
A> All valves include material test certificates, hydrostatic test reports, and dimensional inspection records. Optional NDE reports (RT/UT/MPI) available upon request.
Q: How do I determine the correct pressure class?
A: Consider maximum operating pressure, temperature fluctuations, and potential surge pressures. Our technical team provides selection guidance based on your system parameters.
Q: What is the typical delivery lead time?
A: Standard configurations ship within 4-6 weeks. Customized valves require 8-10 weeks. Expedited production is available for urgent projects.
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