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Double Block and Bleed Valves


DBB Series Double Block & Bleed Ball Valves with Needle Valve

DBB Series Double Block & Bleed Double Block & Bleed Ball Valves

6,000 psi [Pn 408] & 10,000 psi [Pn 680] Rated

DESIGN FEATURES
ISOLATING BALL VALVE :-
* Wide choice of Flange sizes and Pressure ratings.
* Robust HIGH pressure DESIGNED to be maintained
* Ball Valve has anti blowout stem for safety
* Floating ball design for positive shut-off
* Replaceable seats & seals for extended life
NEEDLE VENT VALVE :-
* Top Sealing Bonnet style
* NON-Rotating hard tip on bleed valve for effective shut-off
* Back sealing on the stem & adjustable gland packing
* Stem Seal below actuating threads to prevent contamination & gauling of threads
* Metal/Metal bonnet seal for pressure tightness even at elevated temperatures
* Choice of thread forms
* 1/4” Bleed Port with pressure plug as standard
* 316 ss to NACE Specification, Full material traceability

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DBN Series Double Block & Bleed Needle Valves

6,000 psi [Pn 408] & 10,000 psi [Pn 680] Rated

6,000 psi [Pn 408] & 10,000 psi [Pn 680] Rated

The DBN Series Double Block and Bleed Needle Valves are a Robust HIGH pressure design, with a Top Sealing Bonnet style designed to be Maintained. A smooth 6 turns from OPEN to CLOSE and 316 ss to NACE specification, the ‘DBN’ series needle valves come Complete with a wide choice of thread sizes and Pressure ratings, 2 piece stem with a NON-Rotating tip as standard, Hard TIP for effective shut-off and life, Low operating torque – back sealing on the stem, a choice of block and bleed or double block and bleed, adjustable gland packing [SNV] or LoTork [LNV], Vent port with pressure plug as standard,  Full material traceability, Stem seal below actuating threads to prevent contamination and gauling of threads, and Metal/Metal bonnet seal for pressure tightness even at elevated temperatures.

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