Jordan Valve’s Mark 80 is a temperature regulator featuring what Jordan describes as its unique and superior sliding gate design. Because of the shorter stroke length of the sliding gate seats, the MK 80 is able to use a sealed actuator with a stainless steel diaphragm, and does not require a bellows to operate. To seal the actuator, the upper and lower casings and diaphragm are heli-arc welded around the circumference to create a solid bond. This seal eliminates the need for any type of gasket. All sealing surfaces on the MK 80 are metal to metal. This not only prolongs the life of the valve, but is also a great advantage in steam applications.
In addition to long-life expectancy, the MK 80 temperature regulators also offer higher accuracy, due to the sliding gate seats. Many temperature regulators on the market feature globe style, and thus have a much longer stroke length (up to three times longer) than a MK 80. The MK 80 will react to smaller temperature changes and need less time to travel to compensate for temperature variations resulting in more accurate regulation.
