|SELF OPERATED TEMPERATURE REGULATORS|
The MK80 Series is completely self-operated and requires no external power source or other expensive instrumentation to operate the valve.
The operation of the MK80 is fairly simple. A pre-measured amount of liquid fill is drawn into the thermal system filling the upper diaphragm chamber, the capillary tube, and most of the bulb. As the controlled temperature increases, the volatile liquid fill in the sensing bulb begins to vaporize and creates pressure on the sealed system. This pressure drives the valve stem, closing direct acting valves, or opening reverse acting valves.
|MK80 STEAM TRACING TEMPERATURE REGULATORS|
The Mark 86 ambitemp regulator is designed to control steam tracing lines based on ambient temperatures. The MK86 allows steam to flow through the tracer lines only when it is needed, and remains closed when the ambient temperature rises above the predetermined set-point.
|MK87 EXTERNAL PILOTED TEMPERATURE REGULATOR|
The Mark 87 piloted temperature regulator is the Sliding Gate valve engineered to provide wide range-ability, and greater accuracy, for a variety of temperature control applications. Designed with the same technology as the Mark 80, the Mark 87 is a piloted temperature regulator that offers quality and performance.
|MK89 THREE WAY TEMPERATURE REGULATOR|
The Mark 89 is used for diverting service and is ideal for bypassing fluids around coolers or filters. In this configuration, there is one inlet and two outlets. As one outlet closes, the other outlet opens, diverting flow from one channel to the other. The Mark MK89MX is ideal for mixing service.