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APCO HVAC & FIRE VALVES - DeZURIK

Series 55 BULLETIN 1180 SEPTEMBER 2011 APCO hvac & fire VALVESS eries 50 Series 9000 Series 300 Series 600 Series 200A 2011 DeZURIK , 55 ARV shall operate (open) under pressure and allow entrapped air to escape from a pipeline, pump, tank or hot water system. After air escapes out of the ARV orifice, the orifice shall close by means of a simple lever mechanism to prevent water from escaping. The orifice will then stay closed until more air accumulates inside and the opening cycle will repeat automatically. The needle shall be stainless steel, accurately guided into the seat orifice for tight shut-off.

4 Inch Millimeter Dimensions for 125#/250# Class Valves Model Size Face to Face No. of Bolts Bolt Circle Bolt Size 125# 250# 125# 250# 125# 250# 301 1" 25

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  Fire, Valves, Hvac, Ocpa, Apco hvac amp fire valves

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