Instructional video on how to disassemble and rebuild a Jordan Valve Mark 78 Series Control Valve.

The Mark 78 pneumatic control valve is designed for accurate performance and simplified maintenance. It can be used on a variety of applications including viscous/corrosive liquids, process gases, or utility steam in process or utility service.

The Mark 78 utilizes a cage-retained seat design with an unbalanced plug. The top entry cage design allows maintenance while the valve is in the line. The trim comes with stainless steel standard or can easily accommodate special materials for maximum corrosion resistance.

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