AB-2000 Bimetallic Steam Traps

All Stainless Steel

For pressures to 320 psig (22 bar) . . .
Capacities to 4,630 lb/hr (2100 kg/hr)

The effect of rising temperature on bimetallic elements operates the Armstrong AB-2000 bimetallic steam trap. It adjusts to changing conditions because the curving of the bimetallic elements, caused by increasing temperature, compensates for increasing pressure. The valve of the AB-2000 is specially treated (boronization) to provide greater resistance to the erosive effects of condensate flashing.

The Armstrong AB-2000 has a sealed, stainless steel body that is lightweight, compact and highly resistant to corrosion. It is adaptable to an Armstrong 360˚ Universal Connector or a Trap Valve Station (TVS). This makes it easy to install and replace, as the trap can be removed while the connector remains in-line. That means savings in labor cost and ultimate flexibility—because inverted bucket, thermostatic, thermostatic wafer, disc, and float and thermostatic steam traps can all be installed on the same connector.

Surface treatment extends service life

A new thermochemical surface treatment addresses the problem of wiredrawing, which can leave surfaces vulnerable to erosion from flashing condensate. The basic valve material is machinable hardened chrome steel. During the special surface treatment, atoms of highly resistant material are thermochemically diffused into the valve, adding a layer of protection and a hardness of 1700 HV to the basic material. This treatment makes the surface of the valve highly resistant to the erosive action of flashing condensate, greatly reducing failure rate.