The Armstrong International 250MS12 is a cast steel float and thermostatic steam trap for horizontal installation with a 1 7/8" orifice and thermostatic air vent. The unit has a pipe connection size of 3" not and a 250psi (17 bar) saturated steam maximum working pressure.
The simple yet rugged cast steel construction of the LS & MS Series UltraCapacity F&T steam traps offers long, trouble-free service. All floats, valves and seats, and lever mechanisms are constructed of stainless steel. The integral thermostatic air vent is a balanced-pressure phosphor bronze bellows caged in stainless steel. It is designed especially for heavy-duty industrial applications where highly efficient, uninterrupted service is essential. This balanced-pressure air vent will respond to the pressure-temperature curve of steam at any pressure from zero to 250 psig (17 bar). Thus—up to 250 psig (17 bar)—air is vented at slightly below steam temperature.
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