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DMB Series Double Block Bleed Valve
Ball/Needle/Ball Modular Flanged DBB
Size range ¼” to 3”
Class rating 150 to 2500lb
Material 316ss to Super Alloys
DESIGN FEATURES
ISOLATE VALVE :-
* Top Selaing Bonnet style
* Wide choice of Flange and/or thread sizes and Presure
. Class or psi/Bar ratings. [MODULAR DESIGN]
* Robust HIGH pressure DESIGNED to be maintained
* OS&Y Primary Isolate Valve optional
* Large Head assembly for Primary Isolate
* NON-Rotating hard tip for effective shut-off
* Back sealing on the stem & adjustable gland packing
* Stem Seal below actuating threads to prevent
. contamination and gauling of threads
* Metal/Metal bonnet seal for pressure tightness
. even at elevated temperatures.
* Choice of Block, Block & Bleed or Double Block& Bleed
* 316 ss to NACE Specification, Full material traceability
VENT VALVE :- as above but including
* Anti-Tamper Head unit as option
* Vent/outlet Port can be supplied with o.d. tube fitting
1"600lb Serrated Face Flange Double Block & Bleed
316ss Needle Valve with OS&Y Primary Isolate
inc.PTFE/17-4PH Trim. 1/2"NPT Outlet/1/4"NPT Vent
We reserve the right to change specifications stated in this leaflet due to our continuing programme of developement.All Needle valves have 'T'
Bar handle as standard. Anti-Tamper Keys are always supplied separately, for security.It is always advised that the valve is supported an not left
to carry the weight of the pipework as damage may occur. *=API Flange 1-13/16” & 2-1/16”.
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