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Mark 50/501/502/51 Series – Self-Operated

The Mark 50 Sliding Gate Back Pressure Regulator is used to regulate upstream pressure at a predetermined setpoint.

Mark 52 Series – Internally Piloted

The Mark 52 internally piloted, back-pressure regulator is a specialty valve designed for critical application regulation in locations where space is limited.

Mark 53/54 Series – Differential Back Pressure

The Mark 53 maintains a constant differential between the inlet pressure and the pressure loaded on top of the diaphragm. It can be used for both differential and remotely adjusted applications.

Mark 55 Series - Vacuum Service

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.

Mark 56 Series – Air Loaded Back Pressure

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.

Mark 57 Series – Externally Piloted

The Mark 57 pilot-operated, back pressure regulator is designed to accurately control pressure to 100% of its rated flow capacity with only a small deviation from the setpoint.

Mark 58 Series – Globe Style Back Pressure

The Mark 58 back pressure regulator features three ports: a bypass outlet on the bottom and two side ports which are directly connected to serve as dual inlets or as inlet and outlet for flow-through.

Mark 60/601/602/61 Series - Sliding Gate Pressure Regulator

The Mark 60 Sliding Gate Pressure Regulator regulates the downstream pressure to a predetermined set point.

Mark 62 Series - Internally Piloted

The Mark 62 internally piloted pressure regulator is a specialty valve designed for critical application regulation in locations where space is limited.

Mark 63/64 Series – Differential Regulator

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.

Mark 65 Series - Vacuum Service

Jordan vacuum regulators control accurately and shutoff tightly to maintain the proper vacuum setting.

Mark 66 Series – Air Loaded

The Mark 66 is a highly accurate and economical air-loaded pressure regulator that provides regulation from a local or remote station. The operation of the Mark 66 requires no control spring or pilot.

Mark 67 Series – Piloted Sliding Gate

The Mark 67 Series is for critical pressure reducing applications. It provides greater accuracy and lower offset than can be achieved with a self-operated regulator.

Mark 68G Series – Globe Style Regulator

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.

Mark 68HP Series – High Pressure

The Mark 68HP is designed primarily for high pressure steam service commonly found in power plants, refineries, pulp & paper mills and other high pressure process applications.

Mark 80 Series – Self Operated

The Mark 80 Series is completely self-operated and requires no external power source or additional instrumentation to operate the valve.

Mark 508 Series – Tank Blanketing

The Mark 508 Gas Back Pressure Regulator is the ideal valve for low-pressure gas regulation. The Mark 508 works in conjugation with the Mark 608 in a low-pressure tank blanketing valve system.

Mark 518 Series - Double Seated Tank Blanketing

The Mark 518 is a back-pressure regulator for use in low pressure air and gas services. With a selection of six pressure ranges, set points can be chosen to control back-pressures from...

Mark 608 Series – Low-Pressure Gas/Tank Blanketing

The 1-1/2" and 2" size Mark 608 valves are suitable for large tank blanketing applications or other low-pressure gas regulation.

Mark 608BP - Balanced Plug Regulator

The Mark 608BP Balanced Plug Gas Pressure Regulator is the ideal valve flow pressure gas regulation with higher inlet pressures.

Mark 608DS – Tank Blanketing

The Mark 608DS is a double-seated, self-operated gas regulator for use in tank blanketing applications.

Mark 608IS – Tank Blanketing/Low Pressure Gas

The Mark 608IS gas pressure regulator is ideal for low-pressure gas regulation. The self-contained, low-pressure gas regulator is for use on tank blanketing, gas meter inlet pressure regulating.

Mark 627 Series - Gas Service

The Mark 627 is a self-operated, pressure-reducing regulator that provides accurate regulation and tight shutoff on low or high-pressure systems. Use on air, natural gas, or a variety of other gases.

Mark 630 Series - Gas Service/High Pressure

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.

Mark 660 Series – High Capacity Air Loaded

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.

Mark 686 Series – Air Loaded Globe Regulator

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.

Mark 687 Series - Piloted Regulator with Class VI Shutoff

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.

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