Union, Low-Speed, 1-1/4" NPT RH, 1/2" NPT
1790-001-101
- 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
1-1/4"-11.5 NPT RH1-1/4"-11.5 NPT RH
B
1/2"-14 NPT1/2"-14 NPT
C
76 mm2.992 "
D1
208 mm8.189 "
E
63 mm2.48 "
F
28 mm1.102 "
G
16 mm0.63 "
H
55 mm2.165 "
J
84.5 mm3.327 "
K
1/2"-14 NPT1/2"-14 NPT
P
Non-ThreadedNon-Threaded
R
132.9 mm5.232 "
S3
ThreadedThreaded
Operating Specifications
Media
Air, Hydraulic Oil, VacuumAir, Hydraulic Oil, Vacuum
Rotor Connection
1-1/4"-11.5 NPT RH 1-1/4"-11.5 NPT RH
Supply Connection
1/2"-14 NPT 1/2"-14 NPT
Air Max. Flow
4247 l/min150 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 1790-001-101
Operating Manual
Operating Manual for Soft-Seal Air & Hydraulic unions
Service Guide
Service Guide for unions beginning with 1790 or 1890