Union, Low-Speed, 1/4" NPT RH, 1/4" NPT
17-025-021
- Monoflow design for low-speed air, hydraulic, and brake fluid applications
- Self-supported rotating union
- Aluminum housing and nickel-plated steel rotor
- Special bearing
Dimensions

A
1/4"-18 NPT RH1/4"-18 NPT RH
B
1/4"-18 NPT1/4"-18 NPT
C
38 mm1.496 "
D1
83.3 mm3.28 "
E
29 mm1.142 "
F
16 mm0.63 "
G
8 mm0.315 "
H
22 mm0.866 "
J
46 mm1.811 "
Operating Specifications


Media
Air, Hydraulic Oil, VacuumAir, Hydraulic Oil, Vacuum
Rotor Connection
1/4"-18 NPT RH 1/4"-18 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
Installation Guide
Installation Guide for 17, 21, and 2117 series
Interface Drawing
Interface Control drawing for 17-025-021
Operating Manual
Operating Manual for Soft-Seal Air & Hydraulic unions
Service Guide
Service Guide for unions beginning with 17, 21, and 2117