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Home >> Products >> Automatic Pumps >> SureFire PDI Automatic Lubricator

SureFire PDI Automatic Lubricator We currently do not offer this product for sale on our online shopping cart. For quotes and ordering information, please call us at (281)565-8600.
Main  >> System Description  >> How It Works

How It Works
As the motorized gear pump pulls lubricant in from the reservoir and delivers lubricant to the distribution system, the PDIs in the system discharge a fixed amount of lubricant to the lubrication points. After the injectors are fired, the pressure in the network continues to rise until the limit in the pressure switch is reached. Once the limit is reached, the pressure switch signals the motor to stop. When the momentary pressure in the distribution network becomes greater than the gear pump pressure, the pressure differential actuates a quick release valve which relieves the distribution line pressure back into the reservoir. This causes each PDI in the distribution network to reset and refill for the next cycle.

Technical Specifications
Delivery volume (115VAC, 230VAC) 200cc/min @ 60 Hz; 167cc/min @ 50 Hz
Delivery volume (24VDC) 250cc/min
Delivery volume (three phase) 200 or 500cc/min @ 60Hz; 167 or 415cc/min @ 50Hz
Output pressure (max.) 31 bar (450 psi) max.
Pressure switch resetting Closes at 20 ±0.3 bar (290 ±5 psi)
Oil viscosity range 20 to 1500 cSt at operating temperature
Fluid greases NLGI 000, NLGI 00 (40,000 cSt max)
Reservoir inlet filter (oil version) 40 mesh, removable
Reservoir capacities Clear ABS Plastic for 1.8, 2.7, and 6.0L, Steel for 12.0L
Electric motor options 115VAC, 230VAC, 24VDC, 50/60 Hz (single phase)
230/480VAC, 50/60 Hz (three phase)
Motor power requirements Approximately 140W
Operating temperature range +5°C through +40° C (+40°F through +105°F)
IP rating IP-54
Electrical fitting Liquid tight
Output connection G 1/4 BSPP
Single (main) feed line 6mm OD minimum recommended