The flanged manifolds have been developed to decreased installation time and set up costs, decrease the space and number of parts needed for a multi valve configuration, and to finally lower the number the possible leak paths in the system,click here.
Machined from a one piece of grain flow controlled "forging, the outcome final assembled part incorporates the control device heads and outlet links.
The manifolds with vital flange are made as such to be fixed openly onto your process tool or into your piping structure where ANSI/ASME integral flanges are present or are added as standard fittings.
The manifolds are perfect for and can be configured depending on your system needs, uses may contain; reduction and sampling junctions, direct attachment of instrumentation, or use as branching parts.
Flanged manifolds can be configured with different control device types, and a number of control devices to suit the applications. Configuration contain double and single block and bleed valve/Rising Plug/Ball, Needle valve, bleed plugs or vent valves and also auxiliary equipment pipe links. A bleed/block configuration may be used for example where it is important to prevent gas/fluid flow downstream from the manifold, this part of the system is then bled in order to carry out repair, maintenance, or replacement.
The flanged manifold can also be supplied with twin flanges having a standard lengths as per ASME B16.5m, this is equal to the face to face measurement of old one ball control devices; this design lends itself to simplicity of installation without the requirement to rework piping of older structures when changing and/or retrofitting.
Monoflanges can be configured as either double block and bleed, or single block and bleed; with a plugged vent port for the bleed. This DBB is also accessible with the needle valve in the initial isolation position.
Flanged manifolds, applied in installations in accordance with ANSI/ASME standards, spec all metal sealing in the control device seat where needle valves are present with metal to metal seal at the bonnet to body interface. Different materials are accessible for the seals/seats in both the rising plug valves and ball valves, to suit the gas/fluid temperature and composition.
Types of DBB
Compact cartridge type
Compact cartridge type standard length double block and bleed valves consists of 2 valves and bleed control devices in one compact cartridge type unit with ANSI B16.5 tapped & flanged links. Design configuration permit the same face to face dimensions as one block ball as specified in ANSI B16.10 and API6D. further, an integral one piece body design is also accessible on best entry and en try design additional eliminating future leak points.
Fully flanged DBB valves
Double block and bleed valves spec the traditional style of flange-by-flange kind and is accessible with ANSI 16.5 flanges, weld ends, and hub links. Australian pipeline, Starline Srl who can all produce this kind of double block and bleed valve in all classes and size.