Advantages of VMV Bellows
Material
VMV Standard bellows materials:SS304/SS316L.
Special bellows materials:Inconel 625/Hastelloy276/Monelalloy etc.
VMV can help customers choose suitable bellows for different working condions.
Application
Bellows seal part is a safety device that maintains pressure sealing , it prevents the release of fluids or flammable gases into the atmosphere,realizing a safe and economical way to prevent medium leakage.
Structure of Bellows
U Type Bellows
Ω Type Bellows
Metal bellows features
Pressureresistance,Hightemperatureresistance,Corrosion resistance,Torque resistance,Fague,resistant,Longlife,Highsensivity
Standard bellows assembly
Extended bellows assembly
Test of Bellows
Professional intelligent testing equipment from Europe to test the bellows.100% performance test of bellows assembly before assembly.Accuracy up to Pvariables,Bellows leak rate less than 1X10-6 scc/sec.
100% Pressure test
100% Helium leak test
Meet ISO15848 Standard
Cycle life test of bellows
Test under pressure
Globe valve ≥5000 times
high temperature
Gate valve≥2000 times
