Union, Low-Speed, 1" NPT RH, 1/4" NPT
1690-021-102
- Duoflow design for low-speed air and hydraulic applications
- Self-supported rotating union
- Composite bearing
- Vent holes between passages
- Special seals
- Hardened sealing surface
- Aluminum housing and steel rotor
- Triple-passage tandem model available
Dimensions
A
1"-11.5 NPT RH1"-11.5 NPT RH
B
1/4"-18 NPT1/4"-18 NPT
C
66.5 mm2.618 "
D1
149.2 mm5.874 "
E
55 mm2.165 "
F
28.3 mm1.114 "
G
22.2 mm0.874 "
H
44 mm1.732 "
J
43.6 mm1.717 "
K
1/4"-18 NPT1/4"-18 NPT
P
Non-ThreadedNon-Threaded
R
101.2 mm3.984 "
S3
ThreadedThreaded
Operating Specifications
Media
Air, Hydraulic Oil, VacuumAir, Hydraulic Oil, Vacuum
Rotor Connection
1"-11.5 NPT RH 1"-11.5 NPT RH
Supply Connection
1/4"-18 NPT 1/4"-18 NPT
Air Max. Flow
1132 l/min40 CFM
Air Max. Pressure
10 bar150 psi
Air Max. Temperature
121 °C250 °F
Hydraulic Oil Max. Pressure
207 bar3000 psi
Hydraulic Oil Max. Temperature
121 °C250 °F
Vacuum Max. Pressure
-0.95 bar-13.75 psi
Vacuum Max. Temperature
121 °C250 °F
Documents & Resources
Interface Drawing
Interface Control drawing for 1690-021-102
Operating Manual
Operating Manual for Soft-Seal Air & Hydraulic unions
Service Guide
Service Guide for unions beginning with 1690