Union, 1" UNS RH, 1/2" NPT
1205-255-001
- Monoflow design
- Self-supported rotating union
- Radial housing connection
- Balanced mechanical seals
- Seal combinations: Carbon Graphite/Hardened Tool Steel or Carbon Graphite/Silicon Carbide
- Felt oiler in seal cavity for air service
- Oiler for relubrication (3 to 5 drops/month)
- Low torque design
- Weight-optimized design
- Aluminum housing; stainless steel or carbon steel rotor, depending on model
- Ball bearings lubricated for life
Dimensions

A
1"-14 UNS RH1"-14 UNS RH
B
1/2"-14 NPT1/2"-14 NPT
C
57.2 mm2.252 "
D1
113 mm4.449 "
E
33.6 mm1.323 "
F
18.7 mm0.736 "
G
16 mm0.63 "
H
36 mm1.417 "
J
78 mm3.071 "
Operating Specifications


Media
Air, Hydraulic Oil, VacuumAir, Hydraulic Oil, Vacuum
Rotor Connection
1"-14 UNS RH 1"-14 UNS 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. Flow
26.9 l/min7.1 GPM
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 Air and Hydraulic unions
Operating Manual
Operating Manual for Air and Hydraulic unions
Service Guide
Service Guide for unions beginning with 1205