Dial Indicator - Vacuum - P77-7021

Vacuum Suction Line Indicators

Series MF-360 & ML-360


The MF/ML-360 indicators have a red alert sleeve visible from a full 360°. In the red alert position, the ML-360 remains locked during system shutdown. The MF-360 does not hold the red alert during system shutdown. Mounted near the pump inlet, Model MF/ML-360 indicators require no maintenance or calibration, and they resist vibrations and shocks.



  • Operating Temperature:
  • -40° F (-40° C) to 200° F (93° C) continuous
  • Housing: Nickel plated cold rolled steel
  • Sight Dome: Transparent, high impact polycarbonate



Provides visual warning signal of excessive vacuum condition at pump inlet caused by:

  • contaminated filter element
  • low fluid temperature
  • high fluid viscosity
  • impending opening of filter bypass valve



  • 2.5″ Hg
  • 5.5″ Hg
  • 9.5″ Hg
  • 13.0″   Hg

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Why Maradyne Fluid Power?

Maradyne Fluid Power has produced the industries most reliable line of hydraulic system filters and products for half a century. A clean hydraulic system is a must for efficient and cost effective fluid power. Maradyne Fluid Power meets the demanding needs of today’s hydraulic systems; producing Filter Units and Strainers with Filtration from 3 to 262micron, Flow Ratings to 150 GPM, and Operating Pressures to 3000PSI. MPF also offers Vacuum, Pressure, and Differential Indicators to monitor the condition of your system.

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