Motor Control Valve

The Mark 708MV offers several advantages including extreme accuracy, high turndown ratios and repeatability. The Mark 708MV includes a switch-selectable power supply, a hand drive mechanism for manual operation and a 4-20mA current input signal. Upon loss of input (not loss of power), the motor is designed to either lock in place or fail to minimum input signal  position.

  • Chemical injection
  • Dosing
  • Pilot plants
  • Research labs
  • Skid builders

Industries

  • Aviation & aerospace
  • Chemical, refining & petrochemical
  • Oil & gas
  • Process or industrial
  • Test equipment and service

 

Features & Benefits
  • Manual operation by hand knob
  • Output shaft with soft seating mechanism
  • 4-20mA position feedback possible with standard motor
  • No external power source is needed for feedback
  • Unrestricted modulating duty
  • Spring-loaded TFE/Chevron packing
  • Bolted body/bonnet connection
  • Guided trim
Specifications

Seat Type: Globe – Class IV or VI

Sizes: 1/4″ – 3/4″ (DN8 – DN20)

End Connections: Threaded, Socket Weld, Integral Tube Ends, Welded Flanges

Body Materials: Carbon Steel, Stainless Steel, Hastelloy C, Monel, Alloy 20, others

Cv (Kv): 0.00001 to 4.0 (0,000009 to 3,4)

Ranges: Current voltage command, on/off

Approvals

CRN Number

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