Reliable Solution from a Professional Butterfly Valve Manufacturer.
As a professional API compliant Butterfly Valve Manufacturer, Shengfei Machinery supplies high-performance cryogenic butterfly valves designed for extremely low temperature service in LNG, industrial gas, and petrochemical applications.
Our API609 Butterfly Valve solutions are engineered to ensure tight shutoff, reliable sealing, and long service life under severe low-temperature conditions.
Key Features
Designed according to API609 High Performance Butterfly Valve Standard
Double Offset Disc Design for reduced friction and extended seat life
Reliable sealing performance under cryogenic conditions
Optional Fire Safe Design according to API standards
Low torque operation suitable for electric or pneumatic actuators
Bidirectional tight shutoff
Available Cryogenic Materials
As an experienced Cryogenic Valve Manufacturer, Shengfei offers multiple materials suitable for ultra-low temperature applications:
Valve Body Materials
ASTM A351 CF8
ASTM A351 CF8M
ASTM A351 CF3
ASTM A351 CF3M
Duplex Stainless Steel (ASTM A890 4A / 5A)
Super Duplex Stainless Steel (ASTM A995 6A)
Seat Materials
Reinforced PTFE (RPTFE)
Modified PTFE
Metal Seat for special conditions
Stem Materials
ASTM A182 F304
ASTM A182 F316
Duplex Stainless Steel
Temperature range can reach:
-196°C to +200°C
Applications
Our Cryogenic High Performance Butterfly Valves are widely used in:
LNG Plants
LNG Terminals
Industrial Gas Plants
Petrochemical Facilities
Cryogenic Storage Systems
These valves are suitable for liquid nitrogen, LNG, liquid oxygen, and other cryogenic media.
Standards & Certifications
Our valves comply with international standards including:
API API609
International Organization for Standardization ISO5211
International Organization for Standardization ISO15848
American Society of Mechanical Engineers B16.5
American Society for Testing and Materials Material Standards
Optional certifications:
Fire Safe Test
Low Temperature Test
Third Party Inspection (SGS / TUV / BV)
Why Choose Shengfei
Experienced Butterfly Valve Manufacturer for global markets
Custom manufacturing according to API609 Butterfly Valve requirements
Rich experience in cryogenic valve manufacturing
Competitive price with reliable quality
OEM supply for international valve brands
If you are looking for a reliable Cryogenic Valve Manufacturer or API609 Butterfly Valve supplier, Shengfei Machinery is ready to support your projects.
👉 Contact us for technical support and quotation.
Web: www.shengfeimachinery.com
Mail: sales@shengfeimachinery.com