Armstrong C3484-3 Valve Seat 15b4 15a4 30b5 30a5 for B4 Float & Thermostatic Steam Trap

Armstrong part C3484-3: valve seat 15b4 15a4 30b5 30a5 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.