Welding Check Valve Butt Weld Socket Weld Forged Steel Stainless Steel ANSI Class 150 to 1500 Petrochemical Power Plant China Manufacturer

Flexible installation and convenient maintenance

Flexible installation and convenient maintenance
01
Support horizontal or vertical pipeline installation (no need to adjust the valve body direction), suitable for complex spatial layouts; Welding connections avoid the risk of flange leakage and reduce installation costs.
02
The modular structure allows for online replacement of valve discs and seals, reducing maintenance downtime by 50%, and standardizing parts reduces spare parts inventory pressure.

Quick response and anti backflow capability

Quick response and anti backflow capability
01
The valve disc can quickly close within 0.5 seconds through gravity or spring assistance, effectively suppressing water hammer effect (reducing pressure peak by 80%) and protecting key equipment such as pumps and compressors.
02
Multi petal design (DN>600) disperses impact force and adapts to high-pressure backflow conditions in large-diameter pipelines.

No leakage and corrosion resistance characteristics

No leakage and corrosion resistance characteristics
01
The rocker pin adopts an internal design, and the middle flange uses an internal pressure self sealing structure to eliminate external leakage points and avoid the risk of hazardous media leakage such as sulfur-containing oil and gas.
02
Optional lining rubber (EPDM) or hard alloy overlay sealing surface, resistant to corrosive media such as H ₂ S, acid and alkali, extending the service life of valves in chemical and petrochemical scenarios.

Streamlined low resistance structure and sealing optimization

Streamlined low resistance structure and sealing optimization
01
The straight through flow channel design reduces fluid turbulence and reduces the drag coefficient by 20% -30% compared to traditional valves, making it suitable for high flow steam and oil transportation scenarios.
02
Adopting an internal rocker arm swing structure, the valve disc and rocker arm are connected by a spherical surface, allowing for 360 ° micro compensation, and the sealing surface fits more tightly, with a leakage level of ANSI VI.

Standard compliance and high pressure design

Standard compliance and high pressure design
01
Compliant with American standards such as ANSI B16.34 and API 6D, the valve body adopts precision casting or forging technology, and can support up to Class 2500 (42MPa) high-pressure working conditions, meeting the requirements of harsh scenarios such as petroleum and chemical industries.
02
The pressure bearing parts are made of high-strength materials such as chromium molybdenum steel and stainless steel (such as CF8M, ZG15CrMoV), combined with welding technology (SW/BW), to ensure the stability of the valve in high temperature (up to 800 ℃), high pressure, and sulfur-containing media.

Main Component Materials

Performance Specifications & Dimensions

CL900

CL1500

CL2500