Armstrong KD 2 1/2 in NPT Float & Thermostatic Steam Trap

Armstrong's JD and KD Series ultra-capacity float and thermostatic steam traps have ductile iron bodies with stainless steel floats, valves, seats and lever mechanisms. The integral balanced-pressure phosphor-bronze bellows air vent, caged in stainless steel, follows the steam pressure-temperature curve from 0 to 300 psig.

Part D591471 is the Armstrong KD in 2 1/2 in NPT.

Manufacturer documentation: data sheet, installation and maintenance manual.