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Union, Pop-Off, M16x1.5 LH, 18 mm pilot, Rc 3/8" radial

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903-140-188

  • 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
  • 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
Features.ProductSeries.Imperial Features.ProductSeries.Metric
Features.ProductDetail.DimensionTitle
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A
M16x1.5 LH
B
3/8"-19 PT
C
1.949"
C
49.5 mm
D1
137 mm
D1
5.394"
E
32 mm
E
1.26"
F
0.626"
F
15.9 mm
G
0.335"
G
8.5 mm
H
0.945"
H
24 mm
I
0.708"
I
17.993 mm
J
106.4 mm
J
4.189"
P
PT 1/4"-19
X
4.7 mm
X
0.185"
Features.ProductDetail.SpecificationTitle
Features.Products.Media
MQL, Coolant
Features.ProductDetail.SpecificationRotorConnectionTitle
M16x1.5 LH, 17.993 mm pilot
Features.ProductDetail.SpecificationRotorConnectionTitle
M16x1.5 LH, 0.708" pilot
Features.ProductDetail.SpecificationHousingConnectionTitle
3/8"-19 PT
Coolant Features.ProductDetail.Flow
21.7 GPM
Coolant Features.ProductDetail.Flow
82 l/min
Coolant Features.ProductDetail.Pressure
103.4 bar
Coolant Features.ProductDetail.Pressure
1500 psi
Coolant Features.ProductDetail.Temperature
71 °C
Coolant Features.ProductDetail.Temperature
160 °F
MQL Features.ProductDetail.Flow
72.1 CFM
MQL Features.ProductDetail.Flow
2040 l/min
MQL Features.ProductDetail.Pressure
10 bar
MQL Features.ProductDetail.Pressure
150 psi
MQL Features.ProductDetail.Temperature
71 °C
MQL Features.ProductDetail.Temperature
160 °F
Features.Products.DocumentsAndResources
Installation Guide for Rotor-Mounted unions
Operating Manual for "Pop-Off" unions for machine tools