UE Systems Ultrasonic Detection Equipment

Dollar Loss Table for Inverted Bucket Traps

Steam Cost @ $6.00/1000 lbs.

Inverted bucket traps are generally found on higher-pressure steam systems. However, many like the long lasting characteristics of the trap and install them where one might normally find float and thermostatic traps. Due to the many different orifice sizes in the many different models of inverted bucket traps the guide below is a really "rough" estimate of the potential steam loss. For example: An Armstrong model 883, 3/4" bucket trap made for 15 psig steam will utilize a 1/2" orifice for high condensate capacity applications; whereas a model 881, 3/4" bucket trap for 15 psig steam will utilize a 1/4" orifice. The differences in potential steam loss between the two are significant. Therefore, we have tried to be very conservative when assigning the orifice size in the table below. The actual dollar loss may be significantly different depending upon the specific model of the trap.

The orifice sizes in the table below are referenced from the following Armstrong model numbers: 1/2" pipe size = Model 881; 3/4" pipe size = Model 882; 1" pipe size = Model 883. Order Armstrong Bulletin # 301-H which contains a complete guide to the orifice sizes in the different Armstrong bucket traps.