WHY USE STEAM TRAPS
The presence of condensate, in steam systems, is undesirable since it prevents efficient heat transfer and encourages corrosion and erosion of steam pipes. It is therefore important to remove condensate on a continuous basis and a steam trap is essentially a self-actuated valve that opens in the presence of condensate and closes in the presence of steam.

There are basically two types of traps. There are "Change of State" traps that either mechanically sense the difference in density between condensate and steam, or thermodynamically sense the difference in volume. There are also "Change of Temperature " (thermostatic) traps and they utilize the small difference between condensate discharge and saturation steam temperatures to provide the closing and opening forces on the discharge valve. The "Change of State" traps are represented by the float, bucket, plate orifice, impulse and disc traps. The "Change of Temperature" traps are represented by the bimetallic, bellows and capsule traps. Every trap design has advantages and disadvantages and these have to be evaluated based on performance, cost and maintenance requirements.

Central Station Steam Company has chosen to market the "DE" Steam Trap. It utilizes a bimetallic "D" shaped element that combines both the thermostatic and thermodynamic forces for high condensate discharge capacities and tight shutoff to live steam flow. The "D" shaped element allows for greater linear stem travel, with a single bimetal element, in addition to allowing the use of a smaller steam trap body styles. The stiffness is determined by the overall size of the "D" shape and the thickness and width of the bimetal element. This is important because many of the traps are somewhat cyclic in nature and shock the system, which wears out the trap and could potentially damage other condensate components. When properly sized, the "DE" trap will discharge condensate in a slow, modulating stream rather than discharge in batch mode.

Central Station Steam "DE" steam traps are compact and feature an internal strainer. A single model will cover a fairly wide range of applications and its discharge efficiency is unsurpassed. We believe that our traps are one of the best choices available on the market and we hope that you will give us an opportunity to quote you on your requirements.

Steam Trap Models:
• ModelCS 3A & GM3     Maximum Differential Pressure 30 PSIG
• Model CS 6A & GM6     Maximum Differential Pressure 70 PSIG
• Model CS M10 & GM10     Maximum Differential Pressure 120 PSIG
• Model CS M16 & GM16     Maximum Differential Pressure 200 PSIG

Specific Steam Trap capacity at various pressures and line sizes can be found on the data sheet links above.