The TV/US-XR is a flow regulating valve designed to monitor and control flow of cooling media in response to process temperature or pipe surface temperature, to prevent systems and equipment from overheating.
Operation
The reverse-acting TV/US-XR (Tube Fitting/Ultra Surface Sensing) sample cooler control valve opens on rising temperatures to allow cooling fluid in to keep a process from overheating. The valve may be installed so the valve’s thermal wax actuator is immersed in the process fluid or mounted non-invasively to the pipeline with a band-o-let fitting. The TV/US-XR operates the same way as the US/S-X valve, but it has tube compression fittings instead of pipe fittings and the Cv is around half of the US/S-XR valve.
The wax actuator automatically and continuously senses the process temperature either directly or through thermal conduction to modulate the valve open/closed and regulate the flow of cooling media.
Typical Applications
These compact self-contained sample cooler control valves can be used to control cooling media to economically remove heat from equipment or a process. Controlling air flow to a vortex cooling device and controlling cooling media flow to a sample cooler in response to sample temperature are common applications.
The direct-acting model, TV/US-X is designed to monitor and control the flow of heating media to protect facility pipelines from freezing.
Design Features
Exclusive self-actuating Thermoloid® wax blend thermal actuator
Ram-type plug for reliable shut off
Narrow temperature band
Unaffected by pressure variations
Benefits
Self-operating – no external power source required
Prevents process overheating