High-Performance Axial Flow Check Valve
Qisheng’s High-Performance Axial Flow Check Valves are engineered for critical applications requiring low pressure drop and stable dynamic response. Featuring a non-slam design with a spring-loaded disc, these valves react quickly to flow velocity changes, ensuring zero backflow and preventing pressure surges. The streamlined flow path and Venturi effect minimize turbulence and erosion while maximizing pressure recovery. Built to API 6D standards and available in sizes from 2″ to 36″, these valves offer a short pattern design that reduces weight by up to 70% compared to traditional models.
Description
Qisheng High-Performance Axial Flow Check Valve
The Qisheng Axial Flow Check Valve is the preferred solution for critical applications, such as fast-reversing reciprocating compressors and systems requiring stable dynamic response. Designed to react instantly to changes in flow velocity, this non-slam valve provides a streamlined flow path that minimizes turbulence and prevents erosion. With its advanced engineering, it ensures superior protection for pumps and compressors by preventing backflow and damaging pressure surges.
Axial Design Advantages
- Low Pressure Drop: The axial design creates a streamlined flow path around the trim and diffuser, providing high pressure recovery and minimizing pressure drop across the valve.
- Non-Slam Performance: The spring-loaded disc reacts smoothly and quickly to ensure no backflow or pressure surges occur when pumps are turned off.
- Short Pattern Design: Our specialized short pattern design provides a 30% to 70% weight reduction while offering better flow characteristics compared to traditional long pattern valves.
- Venturi Effect Integration: The unique shape of the body, seat, and disc invokes a Venturi effect, increasing medium velocity to create a high dynamic opening force on the disc. This allows the valve to remain fully open even at low flow rates.
Core Engineering Features
- Optimized Flow Simulation: We utilize advanced Flow Simulation software to optimize static and dynamic flow characteristics, reducing turbulence, vibration, and erosion.
- Precision Manufacturing: Qisheng operates its own foundry for quality casting and employs high-precision machining and grinding to ensure peak valve performance.
- Rigorous Testing: Every valve undergoes complete in-house examination and testing. Our lab is equipped with full-size liquid nitrogen pools, helium detectors, and seat leakage flow meters for specialized cryogenic testing.
- Customized Engineering: Each valve is sized and tailored based on the specific process parameters of the application to ensure optimal functionality.
Typical Applications
Qisheng Axial Flow Check Valves are engineered for versatility across high-stakes industrial sectors:
- Industries: Widely used in Oil & Gas, Refinery, Chemical, LNG, Power, and Water industries.
- Media Compatibility: Suitable for handling gases, liquids, steam, and highly corrosive services.
- Critical Systems: Ideal for systems with low pressure drop requirements and fast-reversing equipment like compressors.
Technical & Operating Specifications
Our axial flow check valves are manufactured to the highest global standards to ensure durability and reliability.
- Product Standard: API 6D
- Size Range: NPS 2″ to NPS 36″
- Pressure Ratings: ASME Class 150, Class 300, and Class 600
- Key Features: Spring-loaded disc, Venturi effect body, Short pattern design