This ONIS D3B (Double Barrier, Bleed & Blind) is a combination of an
ONIS Line Blind and one or two ball valves. It offers many benefits such as:
- Reduced flange to flange dimensionn as ball valve is part of the ONIS
- Dead chamber is minimized, the product loss during operation is lower
- ONIS D3B uses less spiralwound gaskets when installed
- Mechanical safety interlock between the Line Blind and the valves prevents any operation of the Line Blind if the valves remain open
- Drain ports are included
Like all our products, the D3B is available in special steels (carbon steel, stainless steel, Ni-Alloys, duplex, inconel,…) for a wide range of temperatures, pressures and mediums and also available in fire safe design with graphite gaskets.
