Armstrong FT15-B4 Armstrong 15B4 1" Pmo Float & Thermostatic Repair Kit for B4 Float & Thermostatic Steam Trap

Armstrong part FT15-B4: armstrong 15b4 1" pmo float & thermostatic repair kit for the Armstrong B4 float & thermostatic steam trap (B & BI Series).

Armstrong's B and BI Series float and thermostatic steam traps are made for heating service that needs continuous drainage and high air-venting capacity. The thermostatic air vent is charged to track the steam pressure-temperature curve from 20 inches of vacuum to 30 psig, venting air slightly below steam temperature across that range.

Manufacturer documentation for the B & BI Series: data sheet, installation and maintenance manual.