Mark 65 Series

Downstream Vacuum Regulators


Downstream Vacuum Regulators

The Mark 65 Series is ideal for steam, water, oil, gas, air and chemical services. The vacuum 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, milling machines, altitude chambers and other vacuum systems.

Features & Benefits

  • Sliding Gate Seats offer straight-through flow for reduced turbulence and quiet operation, short stroke for fast response and accurate regulation, tight shutoff, and easily interchangeable Cv’s
  • All metal-to-metal contacts – No gaskets, o-rings, or elastomer parts to wear out
  • Compact design and simple construction allows fast, simple installation and easy maintenance


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

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

Vacuum Range: 1″ Hg to 25″ Hg vacuum (0,035 to 0,886 kg/cm2)

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

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