Armstrong’s AW-3500 Series Bimetallic Steam Trap operates by the effect that rising temperature has on bimetallic elements. It adjusts itself to changing conditions, as the increasing pressure on the valve is compensated by the curving of the bimetallic elements caused by the increasing temperature. Armstrong’s AB-3500 Series has a removable cap, stainless steel body that is lightweight, compact and highly resistant to corrosion. The AB-3500 Series is repairable (body and cap can be unscrewed), and can be piped through the Armstrong 360° Universal Connector or Trap Valve Station (TVS). This makes it easy to install and replace, as the trap can be removed while the connector remains in-line. The result is savings in labor cost and an increase in flexibility, as other trap types (Inverted Bucket, Thermostatic and Thermodynamic) can be installed on the same connector.