1.Vertical lift barrel structure with smooth bore and low flow resistance, unobstructed forward medium flow.

2.Automatically opened and closed by medium pressure to prevent backflow, ensuring pipeline system safety.

3.Metal-to-metal hard seal, high temperature resistance, wear and erosion resistance, suitable for oil, gas, chemical and water supply pipelines.

4.Integral cast CF8 stainless steel body, excellent anti-corrosion performance against water, weak acid, oil and gas media, long service life.

5.Compact vertical barrel shape, small installation footprint, specially designed for vertical pipeline installation.

6.Standard RF flanged ends for easy installation and convenient maintenance.

7.100% hydrostatic shell & seat test before delivery; UT/PT NDT inspection available for castings and welds.

8.We provide customized solutions according to customers’ working conditions, drawings and parameter requirements.