Steam traps

Thermostatic traps


The Steam Trap represents a great advance in steam trapping and it is unique in that it operates on a heat-pressure principle. A free-floating, rotating ball valve on the downstream side of the valve seat is activated by a multi-segment bimetallic element, developing forces which are closely related to the saturated steam curve. The element deflects against the line pressure, closing the valve with a force that increases in relation to the steam temperature and pressure.

   

Thermodynamic traps


Very hot condensate entering an area of lower pressure produces flash steam by restricting the volume available for expansion. Increasing pressure can be induced in the control chamber above the disc, while the high-velocity steam discharge causes pressure drop on the disc’s underside. Together, these overcount the flow of the inlet pressure, so closing the disc onto the flash. Steam condenses in the control chamber, pressure pushes the disc away from the seat and the collected condensate is discharged. Its rising temperature then repeats the cycle.

   

Float traps


A thermostatically-controlled trap cannot discharge condensate at steam temperature unless a substantial cooling time is allowed. While with a bimetallic element a temperature differential is necessary for it to act. Float Traps are specially designed and possess considerable advantages over Bucket and Float traps. The operation potential consists of a unique combination of the features of the bimetallic element and the accepted float principle, and are capable of discharging steam-hot condensate as fast as it is formed.

   

Piston operated traps

 

This is designed to obtain a very large discharge capacity, associated with small weight and dimensions. The basis of the design is the combination of mechanical and heat pressure principle, featuring the all in-one-design which combines the air vent trap, check valve, strainer and temperature controller in one unit. Up to 150,000 pounds of condensate per hour can be reached at a temperature little below that of saturated steam. The discharge temperature of the condensate can be controlled and adjusted by the temperature controller.

   

Bucket traps


The Bucket Traps are simple in design and perform with only two moving parts, which means that there is nothing to stick, bind or clog. The sharp, decisive on-off action of the valve helps purging and the open-ended construction enables the trap to withstand water hammer better than most other traps. Each size is fitted with different valve and seat mechanisms at frequent pressure intervals so that the capacity of any one size is maintained at a high level.