Huanyu autoclave provide you autoclave,sterilizer,medical autoclave,water shower sterilizer,pulse vacuum autoclave,steam sterilizer.Huanyu pharmaceutical autoclave equipment is the one of the highest quality manufacturers and suppliers.
You are here: Home » News » Traps for clean steam systems
Traps for clean steam systems

In simple terms, the purpose of the clean steam trap is to completely, smoothly, automatically discharge the condensate in the clean steam, to ensure the dryness of the clean steam. Clean steam traps are mainly installed in two aspects:
1. In charge of drainage, used for discharging condensate water in clean steam transmission pipeline;
2. Process drainage is used to remove condensate water from clean steam heating system and equipment. For example, SIP applications on process pipelines, tanks, and reactors.
The steam trap should normally be operated continuously and process fluid should not reach the trap. However, process traps are usually used interactively, and the process stream often flows through the steam trap during conventional cleaning or process operation. The selection criteria for each type of trap therefore vary greatly.
For practical applications, two different types of steam traps are generally available.
The operation of the thermal power disc type steam trap is based on the principle of speed and pressure difference, and the low temperature condensate water at a lower speed is discharged. When the condensate water or steam at a higher speed is reached, the steam trap is closed. These traps are less clogging resistant and therefore should not be used in applications where steam may trap solid residues, such as the biological reaction SIP, which is usually left open in the event of a failure. Thermal power type disc trap is suitable for use in clean steam pipeline condensate discharge. Service where steam traps are continuously exposed.
Pressure balance type thermostatic trap, also known as the sac type trap or membrane type trap, its operation principle is based on the temperature difference between steam and condensate water. The steam trap has a sac filled with an alcohol/water mixture that expands at a certain temperature. The expanded sac drives the spool against the seat, blocking the steam passage and closing the thermostatic trap.
But open to low temperature of cold water, the closure of the sac has a temperature fan, so hot static trap will keep some condensed water in its upstream and and make them low temperature cooling, in the upstream of the water valve shall be a heat insulation pipe, the segment pipe length should be enough to make the condensed water cooling, but you can’t back into the condensed water system.
Thermostatic traps discharge condensate water at the minimum allowable cooling temperature, between 2℃ and 5℃ below the saturated steam temperature. If temperature measuring devices are used to check the temperature (as in many SIP applications), the longest cold water branch should be installed, usually 300mm to 450mm.
Pressure balance trap is usually in the open position, that is, the fault normally open design. It is suitable for use in equipment with intermittent use of clean steam, such as high pressure sterilization kettle, WFI pure water pipe and biological reaction kettle, which need to be empties quickly to save time. Some designs make the drain valve to be fully drained. The pressure balanced thermostatic trap is the preferred drain valve in the clean process. According to the user’s preference, it is often used as the clean steam main to discharge condensed water.
There are also important specifications and standards to consider for process drain traps, good drainage/cleaning capability, and an inner surface finish usually required to be 180 particle size or 0.5 to 0.6 micron RA20 to 25 micron), so that all process impurities can easily flow through the steam trap during the SIP cycle.
For quick disassembly, easy cleaning and maintenance, trichocircle type bodies are commonly used, often requiring frequent disassembly of the chamber, sometimes after each batch. The upcoming ASMEBPE2007 edition also stipulates that the drain Angle at the bottom of the clean steam trap should be at least 15 in order to facilitate the drain and drain.
Distribution system main traps usually do not require high quality inner surface finish because they are constantly exposed to steam and cleaned.

Please enter your message