User's Manual

LTL-400Thrif-T Luber Low-Pressure Orifi ce Lubrication System
Figure 12
Page 6
Oil Flow
Filter
Elastomeric Check Valve
Orifi ce Body
Metering Pin
THRIF-T LUBER ORIFICES
DESCRIPTION/OPERATION
The Thrif-T Luber Orifi ce Fittings are available in three (3)
confi gurations and 10 size ranges. Each size (5/0 is smallest, 5
is largest) passes twice as much fl ow as the size below it. Each
is equipped with a sintered bronze fi lter, tapered spiral orifi ce pin
and built in check valve. The sintered bronze fi lter and tapered
spiral orifi ce pin makes the units more resistant to blockage from
contamination than the designs used by competitive units.
When oil from the pump reaches the elastomeric ring that
functions as a check valve, the ring fl exes in the direction of fl ow
as a result of pressure 0.1 bar (2 psi cracking pressure). When
pump fl ow stops, the ring resumes its original shape and blocks
back fl ow toward the pump. The spiral grove in the tapered pin
is used to accurately meter the volume of oil delivered to each
bearing.
SPECIFICATIONS
Body and Orifi ce Pin Material Brass
Check Valve Disk Buna-N
Filter Sintered Bronze (40 micron)
Lubricant Oil, 100 SUS to 10,000 SUS
Temperature 0ºF to 180ºF (-18ºC to 82ºC)
Pressure 150 psi (10 bar)
Figure 11