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. Neway bellow sealed valves can achieve truly zero leakage; ideal for stringent leakage-free application like toxic and flammable services.
10,000 cycles failure-free tested
Stem bellow & packing double seal design
Zero stem leakage guarantee
1/2" - 24"
（DN15 - DN600）
150LB - 1500LB
（PN16 - PN250）
Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel
Stainless Steel, Inconel, Hastelloy