Double Block and Bleed Valves 2020-07-28T10:56:50+01:00

Double Block and Bleed Valves

TRI-BLOCK (DOUBLE BLOCK AND BLEED) - Zwick Armaturen GmbH

zwick double block and bleed

SERIE TRI-BLOCK

DOUBLE BLOCK AND BLEED

The Double Block and Bleed design features every technical advantage which the series TRI-CON has plus there is a true double block and bleed feature which delivers zero leakage. By using this design, the former two valve system with a spool piece becomes obsolete. This fact is not only important for installation since you have to install only one valve body in the pipeline, but also only one actuator or gearbox is required.

With ZWICK’s unique design of the linkage between the two shafts, the user is able to actuate both shafts with only one actuator and reach zero leakage with the two available sealing surfaces.

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ECONTROL Block and Bleed Valves - Single and Double

ECONTROL Block and Bleed Valve

ECONTROL Double Block and Bleed main applications:
• Instrument DBB for chemical injection and process sampling
• Instrument DBB for process connections (insulation of pressure indications or gauges)
• In-line DBB for process isolation located in the primary process line

Product Range

ECONTROL Block and Bleed Valve

20" ANSI 300# Double Block and Bleed Valve during packing stage

ECONTROL Block and Bleed Valve

1" ANSI 150# Block and Bleed Valve during preparation for testing

ECONTROL Block and Bleed Valve

16" ANSI 300# Double Block and Bleed Valve during packing stage