Union, 1-1/2" UNF LH, 40 mm pilot, 1" NPT
355-021-017
- 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
1-1/2"-12 UNF LH1-1/2"-12 UNF LH
B
1"-11.5 NPT1"-11.5 NPT
C
82.55 mm3.25 "
D1
166.5 mm6.555 "
E
59 mm2.323 "
F
38.1 mm1.5 "
G
25.4 mm1 "
H
38.1 mm1.5 "
I
39.649 mm1.561 "
J
107.8 mm4.244 "
X
12.7 mm0.5 "
Operating Specifications


Media
Air, Hydraulic Oil, VacuumAir, Hydraulic Oil, Vacuum
Rotor Connection
1-1/2"-12 UNF LH 1-1/2"-12 UNF LH
Supply Connection
1"-11.5 NPT 1"-11.5 NPT
Air Max. Flow
16990 l/min600 CFM
Air Max. Pressure
10 bar150 psi
Air Max. Temperature
121 °C250 °F
Hydraulic Oil Max. Flow
107.7 l/min28.5 GPM
Hydraulic Oil Max. Pressure
69 bar1000 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 54, 55, and 57 series
Interface Drawing
Interface Control drawing for 355-021-017
Operating Manual
Operating Manual for Air and Hydraulic unions
Service Guide
Service Guide for unions beginning with 55 to 655