Detailed Description：

UNICENTS Bellow Seal Valve is designed with bellow welded onto the bonnet and stem, so that when the stem travels drive the below expansion or decompression. It inherently eliminate the conventional design of possible stem packing leakage. UNICENTS bellow sealed valves can achieve truly zero leakage; ideal for stringent leakage-free application like toxic and flammable services

 
Product Range
-Valve size: 
2” ~ 400” (DN50-DN400)
-Pressure:
PN16-PN150
-Temperature: 
-196℃~ 600℃
-Body Materials:
Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel
-Trim (Disc/Stem):
Carbon Steel, Stainless Steel, Duplex Steel, Alloy Steel
 
Technical Specifications   
-Design: DIN 3352
-Face to Face: DIN 3202
-End Flange: DIN 2543-DIN 2547
-Test: DIN 3230
-Special: NACE MR-01-75