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Ammark type 71 straight 3/4" radiator valve steam water
Ammark Type 71 Straight 3/4" Valve
Type 7 valves were sold by Ammark between 1971 and 1998.
Recommended replacement for Steam Heat - replace internal valve assembly every 3-5 years, depending on system's age and source of energy. Older systems or systems that use refuse to fire the plant, often require the most frequent valve maintenance. For Hot Water Heat, replace internal valve assembly every 6-10 years, depending on age of system.
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