Union, Pop-Off, M16x1.5 LH short, 18 mm pilot, Rc 3/8" radial
902-140-388
- Single passage for coolant or MQL
- Pop-Off™ technology allows unlimited dry running without media pressure
- Full-flow design has no obstructions to trap swarf or debris
- Bearing-supported with threaded rotor for easy installation
- Deep groove radial ball bearings for smooth operation
- Labyrinth system and large vents to protect ball bearings
- Balanced mechanical seals made from silicon carbide for long life even under difficult operating conditions
- Anodized aluminum housing resists corrosion
Dimensions
A
M16x1.5 LHM16x1.5 LH
B
3/8"-19 PT3/8"-19 PT
C
49.505 mm1.949 "
D1
130.505 mm5.138 "
E
27.508 mm1.083 "
F
15.875 mm0.625 "
G
8.712 mm0.343 "
H
23.8 mm0.937 "
I
17.993 mm0.708 "
J
99.847 mm3.931 "
P
PT 1/4"-19PT 1/4"-19
X
4.826 mm0.19 "
Operating Specifications
Media
Coolant, MQLCoolant, MQL
Rotor Connection
M16x1.5 LH M16x1.5 LH
Supply Connection
3/8"-19 PT 3/8"-19 PT
Coolant Max. Flow
82 l/min21.7 GPM
Coolant Max. Pressure
69 bar1000 psi
Coolant Max. Temperature
71 °C160 °F
MQL Max. Flow
2040 l/min72.1 CFM
MQL Max. Pressure
10 bar150 psi
MQL Max. Temperature
71 °C160 °F
Documents & Resources
Installation Guide
Installation Guide for Rotor-Mounted unions
Interface Drawing
Interface Control drawing for 902-140-388
Operating Manual
Operating Manual for "Pop-Off" unions for machine tools