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  Press Release - July 2009


Mark 708LMO Series

LowFlow Valve is pleased to introduce the new Mark 708LMO Series. The Mark 708LMO offers many advantages including extreme accuracy, high turndown ratios and repeatability. The features of this high resolution, low hysteresis digitally controlled motor makes the MK708LMO a premiere control valve for applications involving chemical injection, dosing, pilot plants and research labs. In addition, it is a prime valve for skid builders.

Additional features of the MK708LMO include 120 VAC or 220 VAC capability, stowable hand operator for manual operation, and a 4-20 mA or split range current input signal. 0-5 or 0-10 VDC voltage signal, and various protective enclosure classes are standard features on these motors. Upon loss of command signal, the motor is designed to either lock in place, or fail to minimum input signal position.
Mark 708LMO
  • Spring-loaded TFE/Chevron packing - the spring-loaded packing maintains a proper compressuion, while minimizing excessive friction. This alleviates the need for most field adjusting. The TFE packing is suitable for temperatures to 450°F (232°C), while braided or Graphite/Grafoil may be used for higher temperature requirements.
  • Bolted body/bonnet connection - the bolting provides solid construction and secure connection. This bolting adds ease to maintenance, as bonnet/actuator assembly may be removed with the valve body in-line.
  • Guided trim - extended orifice and plug guilding are standard and offers improved shutoff and accuracy equivalent to heavy duty trim option of competitors (not applicable to Cv's below 0.05).
  • Manual operation by stowable hand crank
  • Output shaft with soft seating mechanism.
  • Optional 4-20 mA position feedback (reqires customer supplied external 12-36 power supply and a load connected in series with one lead from power supply).
Click here to download the brochure

Contact
Kyndle McMurry
Richards Industries
513-533-7345
kmcmurry@richardsind.com