Double Block and Bleed (DBB) ball valve

Product Description

Product Name: Double Block & Bleed Valve
Body Material: Carbon Steel , Stainless Steel
Size: 1/2 NPS - 8 NPS
Pressure: Class 150 to class 2500
End Connection: RF, RTJ, BW
Operation: Manual, GO
Medium: Water, Oil, Gas, etc
Temperature Range: -20°C to 150°C

Double block and bleed valves is the practice of shutting in a section of pipe on both sides of the valve rather than just one. It means you close the ball valves to block both the upstream and downstream sides of your working area and then bleed any pressure that remains in the piping and valve. A double block and bleed (DBB) valve is a type of industrial valve that provides two isolation barriers and a means of venting or bleeding the cavity between the barriers. This configuration is designed to enhance safety and simplify maintenance procedures in fluid or gas systems. The main components of a double block and bleed valve typically include two block valves and a bleed (or vent) valve: