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DFN Series Double Block Bleed Valve
Needle/Needle/Neddle Flanged DBB
Size range ¼” to 3”
Class range 150 to 2500lb
Material 316ss to Super Alloys
DESIGN FEATURES
ISOLATE VALVE :-
* Top Sealing Bonnet style
* Wide choice of Flange sizes and Presure ratings.
* Robust HIGH pressure DESIGNED to be maintained
* OS&Y Primary Isolate Valve optional
* Large Head assembly for Primary/Secondary 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
* Bleed Port with socket pressure plug or Tube fitting
 Download PDF Data Sheet Click Here
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