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Bleed and Purge Valves  Inicio / Productos Purge & Bleed Valves


Double Block & Bleed Valves


Applications

Process pipping isolation points, direct mount to instruments, vents and drains.

Features

Process interface in one compact ball/needle/ball valve assembly

2,3 piece Bolted Body or 1-Piece forge body construction.

Flange connections in accordance with ASME B16.5

Blowout proof stem.

Fire Safety designed

 

Specifications

Maximum Working Pressure:

Class 150 to class 2500

Working Temperature Range:

-58˚F to 400˚F(-50˚C to 204˚C) for stainless steel and duplex valve assemblies

-58˚F to 400˚F(-46˚C to 204˚C) for carbon steel valve assemblies

 

Bleed Valves


Applications

SUPERLOK bleed valves can be used on instrumentation devices such as multivalve manifolds or gauge valves to vent signal line pressure to atmosphere Before removal of an instrument or to assist in calibration of control devices.

Features

Compact for convenient installation.

Back stop screw prevents accidental remove of stem.

Chrome-plated stem threads and tip improves valve life.

Male NPT or ISO Thread end connection.

 

Specifications

Maximum Working Pressure:

10,000psig (689bar) @100 (38˚C )

Working Temperature Range:

-65˚F to 850˚F (-54˚C to 454˚C )

 

Purge Valves


Applications

SUPERLOK purge valves are manual bleed, vent, or drain valves. One-quarter turn with a wrench from finger-tight obtains leaktight closure on first makeup. Snugging with a wrench ensures closure to the rated pressure with subsequent makeups.

Features

Compact for convenient installation.

Vent hole is bled excessive liquid or gas from system lines.

Cap is crimped to valve body to prevent accidental disassembly.

Variety of end connections; SUPERLOK tube fittings, NPT and ISO threads.

 

Specifications

Maximum Working Pressure:

4,000psig (275bar) @100 (38˚C )

Working Temperature Range:

-65˚F to 600˚F (-54˚C to 315˚C )

 

Bleed Valves


The Double Block & Bleed “Type V” is fully approved to be supplied to many of the world’s oil majors. At the end of the last millennium there were over 10,000 of these valves manufactured by Alco Hi-Tek and in service around the world. All threads are generated using our in-house CNC machines. 316 stainless steel handles and trim as standard to reduce the risk of corrosion. Materials of construction include standard grades ASTM A350 LF2 / A105, ASTM A182 F316 / F316L and ASTM A182 F51 being held for call off by our clients. This reduces the overall project delivery times dramatically. Outlets and vents are all 1/2" NPT as standard, 1/4" and 3/4" are also available. Butt weld and socket weld outlets available. 

 



   
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