Differential, Jorlon Diaphragm

The Mark 53 is designed to maintain inlet pressure at a set differential pressure over the signal pressure loaded on the diaphragm. The Mark 54 provides the same flow capacity but with less offset in controlled pressure due to a larger diaphragm. It can be used for both differential and remotely adjusted applications. A negative differential version is also available.

Features & Benefits
  • Maintains a constant differential between the inlet pressure and the pressure loaded to the top of the diaphragm
  • Straight-through flow for reduced turbulence and quiet operation
  • Short stroke for fast response and accurate regulation
  • Easily interchangeable CV’s
  • Tight shutoff

Sizes: MK53″ 1/4″ – 2″ (DN8 – DN50); MK54: 1/4″ – 3/4″ (DN8 – DN20)

Cv (Kv): up to 30 (up to 25,8)

Diaphragm: Jorlon, Stainless Steel, Buna-N, Viton

Setpoint: MK53: 0.5 – 150 psi (0,03 to 10,3 bar); MK 54: 0.5 to 170 psi (0,03 to 11,7 bar)

Body Material: Ductile Iron, Bronze, Carbon Steel, Stainless Steel

End Connection: Threaded, Flanged, Socket Weld, Butt Weld

Options: Double Diaphragm, Flow through Dome, and Handwheel


Benefits of the Sliding Gate

Read on to learn the benefits of owning sliding gate regulators and control valves.

Sliding Gate Infographic

Download this infographic on the benefits of the sliding gate in regulators and control valves.

Sliding Gate Valve Overview

Watch this video for an overview of Sliding Gate Pressure Regulators and Control Valves

Sliding Gate Videos

Learn more about the sliding gate seat design by watching these videos.

  • EC Declaration of Conformity/PED:
    Mark 53: 1-1/4″ -2″
    Mark 54: 1/4″ – 3/4″
  • CRN Number
    Mark 53: 1/4″ – 2″
    Mark 54: 1/4″ – 3/4″
  • ATEX Certified
Jordan Valve Express

The Mark 53 is available for Next Business Day shipment.

Sizes: All

SST/Jorlon diaphragm, FNPT, 150# RF 1/2″ – 2″, DN25 – 50, Closing Caps

Some exclusions may apply

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