Steam tracing is still the most common type of industrial pipe tracing used for the freeze protection of pipelines. Steam has a high latent heat thus making it an effective heating medium and does not create electrical sparks like its alternative, electric heat tracing. Steam traced systems use a facilities existing steam supply making them efficient, but they can also be very costly because of the winterization procedures and unregulated supply of steam.
Typical winterization procedures at a plant require steam tracing to be turned on during periods of cold weather when temperatures could drop below freezing. Since temperatures fluctuate throughout a winter period many plants turn on the trace system in the beginning of their winter season and leave it on until Spring. While this eliminates the chance of freeze damage from forgetting to activate the steam on any particular day, it wastes a lot of steam on those days that temperatures are above freezing.
ThermOmegaTech’s thermally actuated steam control valves regulate the flow of steam, gas, or other fluid to keep your pipes working by sensing the ambient or surface temperature. These highly durable self-actuating valves will automatically turn on steam to keep water lines from freezing and then turn it off whenever the ambient or surface temperature reaches the specified closing temperature.
Steam tracing exposed pipes is the simplest way to keep them from freezing, but it is not without its downfalls. By relying on an automatically operated system to manage steam tracing you can saves thousands of dollars and eliminate errors associated with manual operations. The systems automatic response to temperature ensures your water lines are freeze protected but eliminates wasted spend. TV/SC-A (Tube Valve/Steam Control-Ambient Sensing) valves can be used to turn on steam, air, gas or liquids in response to ambient temperature change to protect lines from freezing. The system automatically turns off when air temperatures rise above the valve’s set-point, saving thousands of dollars in operating cost.
US/S-X (Surface or Fluid-Sensing) or TV/US-X (Tube Valve Surface or Fluid-Sensing) valves regulate the flow of heating media in response to the process temperature or the pipe’s surface temperature. Either installed with the sensing end immersed in the process fluid or mounted non-invasively via a hose clamp on the outside of the pipeline, these valves sense the fluid temperature to control heat trace lines.
HAT or TV/HAT valves act as a steam trap and discharge condensate well below the steam temperature, eliminating live steam loss. For heating of temperature sensitive instruments or process fluids, the reduced temperature available for tracing simplifies operations and eliminates overheating problems.
In cooling applications, systems can overheat if not properly controlled. To prevent overheating, cooling jackets or coils are often used however if temperatures are not properly regulated you could be wasting money or miscalculating the cooling flow needed. ThermOmegaTech’s reverse-acting valves should be applied for regulating the flow of cooling media through a system.
The reverse acting US/S-XR (Surface or Fluid-Sensing) or TV/US-XR (Tube Valve Surface or Fluid-Sensing) are placed in contact with the process line or pipe to regulate the flow of cooling media through a system.