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. The Mark 57 provides accuracy approaching that of controller-operated valves and should be considered on most critical applications before other more expensive and sophisticated instrumentation.
 
The Mark 57, a sliding gate regulator, has a much shorter stroke than the standard globe or plug style valve. The shorter stroke combined with the action of the pilot valve creates a faster and more accurate response.

• High turn-down ratios – Up tp 50:1
• Versatile Application – Use on steam, air, gas, liquids, or chemicals
• Sliding gate seats provide straight-through flow for reduced turbulence, quiet operation, fast response, and tight shutoff