Dome Loaded, High Accuracy

The Mark 66/660 is a highly accurate and economical air loaded pressure regulator that provides regulation from a local station or from a remote station. Dome loading combined with the sliding gate seats provide excellent regulation and rangeability. This valve can be coupled with an extended range I/P for remote operation. It can also be manually controlled with a MK12 loading station or a LowFlow JR regulator.

Features & Benefits
  • All metal-to-metal contacts – No gaskets or o-rings to wear out (2”/DN50 and under)
  • Versatile Application – Use on steam, air, gas, liquids, or chemicals
  • Sliding Gate Seats – Straight-through flow for reduced turbulence and quiet operation, short stroke for fast response and accurate regulation, tight shutoff, and easily interchangeable Cv’s
  • Remote/frequently changing set points

Sizes: 1/2″ – 6″ (DN15 – DN150)

Cv (Kv): up to 395 (up to 340)

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

Setpoint: up to body ratings

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


Benefits of the Sliding Gate

Read on to learn the benefits of owning sliding gate 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 66: 1-1/4″ – 6″
  • CRN (Canadian Registration Number)
    Mark 66: 1/2″ – 6″
Jordan Valve Express

The Mark 66 is available for Next Business Day shipment.

Sizes: 1/2″ – 2″

DI & SS NPT valves only

Exclusions may apply.

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