ZFV PN16 Stainless Steel Valve LUG Type Finished And Pass The Testing

ZFV PN16 Stainless steel valve LUG type finished and pass the testing

Below is detail data of valve:

DM150, pressure rate PN16, LUG type tapped holes, clamping between flanges according to EN1092-1, valve construct is three eccentric type, the butterfly valve is with stainless steel material: The material body material stainless steel A351 CF8M, disc material stainless steel A351 CF8M, stem material 17-4PH, disc sealing ring SS316+graphite laminated.  

The technical standards as below:  

Basic design and manufactured EN593  

Fce to face dimension as per EN558  

End flanges dimension as per EN1092-1

Test and inspection as per EN12266-1

Since the austenitic stainless steel material, and end user do not have special requirement about painting, we apply no painting to valve. And anti-rust coating shall be applied to valve bore, raise face ( serrated face ) and disc surface.

The SS butterfly valve carried out hydro testing as per international standard strictly, no visual leakage found during testing.

The detail testing pressure and duration as below :

2.4Mpa by water for shell testing, duration 60s.

1.76Mpa by water for high pressure seat testing, duration 60s.

0.6Mpa by air for low pressure seat testing, duration 60s.  

The valve can be open and close smoothly under pressure, valve function is ok.

ZFV ( Zhejiang zhengfeng valve co., ltd ) is a professional butterfly valve manufacturer, manufacturing valve with different operating types to meet different requirement from customers over the world.