Tri State Hydraulics



Automatic refill pump package (388415)

Includes 1:1 ratio air-driven pump with accessories including filter/regulator, 7 ft long hose and valves. For 55 gallon oil drums only (drum not included).


  • Modular generators - C and D models only
  • High-capacity generators - 3720 and 3730 models with optional auto-refill kit 


  • Hose assembly (317803-3)
  • Hose assembly (317813-7)
  • Suction tube (338147-4)
  • Filter/regulator (7936)
  • 1/2" NPT union (17737)
  • Adapter (51888)
  • 1/2" NPT full port valve (388217)
  • Ram pump(9916-A1) 


Mist Pressure Gauge

  • 1/4" NPT(m) back mount (384889)
  • 1/8" NPT(m) bottom mount (382064) 

When installed in the mist distribution header of 1 pint and 1 gallon mist generators, these gauges provide visual assurance of proper mist pressure in the system. Included in other mist generator models. Gauges measure 0 to 100" H2O. 

Alarm Annunciator (387275)

387275 - Alarm Annunciator - 120 VAC

Provides both visual and audible warning of system faults when connected to oil level float switch and low/high mist pressure switch (optional). Includes red and green status lights, as well as audible horn with disable switch. 

  • Dry contacts provided to energize remote alarms (10 amp max). 120 V AC, 50/60 Hz 
  • NEMA 4X non-metallic enclosure with mounting bracket
  • Dimensions: 6.4" wide x 8.4" tall x 4.8" deep
  • Use with all models that do not have status lights 

Mist Pressure Switch (385033)

385033 - Mist Pressure Switch
When installed in the mist distribution header of 1 pint and 1 gallon mist generators (and used in conjunction with an optional alarm annunciator), this switch responds to either a rise or a drop in system pressure by sending an alarm signal to the alarm annunciator. Factory set at 8" H2O (falling) and 55" H2O (rising) mist pressure. Settings can be easily adjusted in the field. 
• Rated for 10 amp @ 120 V AC 
• 1/4" NPT(f) pipe connection and 1/2" NPSM(f) conduit connection

TOOLS & LUBRICATION ALEMITE Oil-Mist Systems Accessories