(48) 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.
Because of the shorter stroke length of the sliding gate seats, the MK80 is able to utilize a sealed actuator with a stainless steel diaphragm, and does not ...
(96) The MK801/802 Series is completely self-operated and requires no external power source or other expensive instrumentation to operate the valve. The Mark 801/802 Series is the high-flow and super high flow versions of our Mark 80 Series temperature regulator.
A temperature regulator is only as good as its actuator and a great deal of research has gone into the development of Jordan’s stainless steel SWA actuator. That is why the SWA, combined with Jordan’s sliding gate regulator design, provides the finest temperature control available in a self-operated design.
(32) The Mark 85 is a self-operated temperature regulator with controlled failure option which allows you to predetermine the position of the valve in the event of a thermal system failure. The Mark 85 is designed to fail closed on heating application and to fail open on cooling applications.
(32) The Mark 86 Ambitemp Regulator is designed to control steam tracing lines based on ambient temperatures. These steam tracing lines are commonly used to protect outdoor instrumentation, pipelines and tanks from freezing. The Mark 86 allows steam to flow through the tracer lines only when it is needed, and remains closed when the ambient temperature rises above a predetermined set point.
The Mark 86 is generally installed as a normally closed valve. As the ambient temperature falls below the set point, the valve will open, allowing steam to enter the tracing line system. The Mark 86 may also be set up as a normally open valve and stroke toward closed as the ambient temperature rises.
(96) The Mark 87 piloted temperature regulator is the Sliding Gate valve engineered to provide wide rangeability, and greater accuracy for a variety of temperature control applications. Designed with the same technology as the industry leading, self-contained Mark 80, the Mark 87 is a piloted temperature regulator that offers quality and performance unparalleled by any competitive products on the market.
(96) 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 inlet closes, the other outlet opens, diverting flow from one channel to the other.
The Mark 89MX is used as a combining or mixing valve with two inlets and one outlet. When used as a mixing valve, optimal performance will be achieved with equal pressures on both inlets.
