DAN-EX from Western Valve
Zero Fugitive Emission Dual Expanding Plug Valve. (DBB) Double block and bleed.
Western Valve Inc is an established, world class manufacturer of the DAN-EX double block and bleed plug Valve. Western valve manufacture and assemble the valves in the United States. Since our inception in 1991 we have manufactured, repaired and reconditioned valves and valve parts for their worldwide market. They have the IS0 9001:2008 certification and API6D (6D-1094) accreditation.
Available in ANSI 150 : 2” -8”, ANSI 300 : 2”-4” and ANSI 600 2”-4”
Body bleed and thermal relief options :
DTR : Differential Thermal Relief.
ABBV : Automatic Body Bleed Valve
LR/DTR : Line Relieving Differential Thermal relief
The single unit Double Block and Bleed Valve (DBB) design has operational advantages, there are significantly fewer potential leak paths within the double block and bleed section of the pipeline. Because the valves are full bore with an uninterrupted flow orifice they have got a negligible pressure drop across the unit. The pipelines where these valves are installed can also be pigged without any problems.
General brochure link is below.