Lube Line Alert

Lube Line Alert

Vertex Lube-Line Alert is an easily installed device providing positive protection for compressors, pumps, engines and equipment employing any make or type of force feed lubrication system. Installed as close to each point of lubrication as possible, the unit acts as a sentinel to indicate flow or no-flow at any point in the system ahead of the Lube-Line Alert inlet. One Lube-Line Alert per pumping unit will warm of flow stoppage for any reason including low reservoir lubricant level; shaft rotation stoppage; broken lubricant lines; dirt under pump valves and worn plungers.

A single Lube-Line Alert per Lubricator will warn of low reservoir lubricant level or shaft rotation stoppage. For complete protection, there should be as many Lube-Line Alert units in your installation as there are points of lubrication.

Vertex Lube-Line alert provides low-cost, dependable protection for costly machinery.

  • Indicates flow or No-Flow at any point in the system ahead of the lube-line alert inlet. Not affected by discharge pressure.
  • Operates under continuous or intermittent low-flow rates.
  • Universal use – operates in any air free force feed lubrication system – any make lubricator.
  • Sensitive to a wide range of flow: from .006 cubic inches to 190 cubic inches per minute.
  • Many type lubricants and viscosities – mineral or synthetic.
  • Time delay adjustment – to compensate for viscosity and / or flow rate. Quick and easy to adjust.
  • Pressures - for operation up to 10,000 psi.
  • Explosion-proof – UL and CSA Listed for class I Groups C & D and Class II Groups E, F & G. Division 1 & 2 when installed as per NEC 501
  • For connection to any electrical warning system – lights, sound devices, machinery shut-off relays, telephones etc.
  • A low-level and shaft rotation indicator – equip one pumping unit per reservoir with lube-line alert.

UL & CSA Electrical Ratings

  • Single Pole, Single
  • Throw magnetically operated switch
  • 115 VAC, 60Hz, 10 watt
  • 28 VDC, 0.5 amp Resistive
  • 28 VDC, 0.5 amp Inductive


Max Switch Rating

350 VAC/VDC, 50 watt, 2 amp

Max Operation Pressure

10,000 psi

Min Pressure Drop Access Alert

150 psi

Flow Rate

  • 0.006 to 190 per minute @ 100 SUS
  • 0.006 to 75 per minute @ 2000 SUS

Fluid Viscosity

100 to 9000 SUS


0.6 lbs

Lube Line Alert