
Spirax Sarco ABV21i/ABV40i Pneumatic Boiler Blowdown Ball Valves
Pneumatic boiler bottom blowdown ball valves with PN40 and Class 300 flange connections.

Spirax Sarco bimetallic steam traps are available in multiple product series. The SMC32, SMC32Y, SMC32F and SMC32YF series feature carbon steel construction, while the ISMC32 is a repairable carbon steel design for standard operating conditions. The SM45 is a repairable medium-pressure model, and the HP45 is a high-pressure design that supports in-line maintenance for medium- and high-pressure applications. The SP80 and SP100 series are intended for high-capacity applications. The USM21 uses a sealed design installed with a pipeline connector. When selecting a model, users should focus on system operating pressure, discharge capacity requirements and structural differences such as the need for in-line maintenance.
