Jordan vacuum back pressure regulators control very accurately and shutoff tightly to maintain the proper vacuum setting. They are used to maintain vacuums at predetermined settings and to regulate vacuum on evaporators, cookers, grinding fixtures, milking machines, altitude chambers and other vacuum systems.
The Mark 56 is a highly accurate and economical air loaded back-pressure regulator that provides regulation from a local or remote station. The operation of the Mark 56 requires no control spring or pilot.
The Mark 63 is designed to maintain a constant differential between the pressure on the discharge side of the regulator and the signal pressure loaded on the diaphragm. The Mark 64 provides the same flow capacity as the Mark 63, but with less offset in controlled pressure due to a larger diaphragm.
The Mark 68G is a self-operated globe style pressure reducing regulating valve. It offers high capacity, accurate regulation and easy servicing, making it an ideal choice for industrial pressure reducing applications.
The Mark 630 is a self-operated, pressure-reducing regulator that provides accurate regulation and tight shutoff on high-pressure gas systems. It handles inlet pressures up to 1500 psi (103,4 bar) for a variety of gases.
The Mark 660 is a highly accurate, air loaded pressure regulator that provides regulation from a local station or from a remote station. The operation of the Mark 660 requires no control spring or pilot.
The Mark 686 is a cage trim pressure-reducing valve that features air-loading, high capacities, accurate regulation, and easy servicing, making it an exceptional choice for pressure regulating applications.
The main valve of the Mark 687 is normally closed. The pilot valve is normally open, allowing the upstream pressure to move through the outlet port of the pilot valve to act on the bottom of the main valve diaphragm. This force pushes the stem upward, opening the main valve. The Mark 687 modulates between open and closed to maintain control.