SUPERSEDED by 57-503-094


55-503-094
- Monoflow and duoflow operation
- Self-supported rotating union
- Radial housing connection
- Balanced mechanical seals
- 3 vent holes
- Forged brass housing and stainless steel rotor
- Special options include threaded vent holes, low torque design
- Seal Combinations: Carbon Graphite/Bronze for water; Carbon Graphite/Ceramic for hot oil, hot water and saturated steam; Tungsten Carbide/Ceramic for severe conditions such as poor water quality
Dimensions

A
G 3/8"-19 RHG 3/8"-19 RH
B
3/8"-18 NPT3/8"-18 NPT
C
44.45 mm1.75 "
D1
100 mm3.937 "
E
26 mm1.024 "
F
16 mm0.63 "
G
9.5 mm0.374 "
H
22 mm0.866 "
J
64 mm2.52 "
K
1/4"-18 NPT1/4"-18 NPT
P
Non-ThreadedNon-Threaded
Operating Specifications


Media
Hot Oil, Steam, WaterHot Oil, Steam, Water
Rotor Connection
G 3/8"-19 RH G 3/8"-19 RH
Supply Connection
3/8"-18 NPT 3/8"-18 NPT
Hot Oil Max. Flow
252.8 l/min66.8 GPM
Hot Oil Max. Pressure
6.9 bar100 psi
Hot Oil Max. Temperature
93 °C195 °F
Steam Max. Flow
1,053.5 l/min278.3 GPM
Steam Max. Pressure
1 bar15 psi
Steam Max. Temperature
93 °C195 °F
Water Max. Flow
252.8 l/min66.8 GPM
Water Max. Pressure
51.7 bar750 psi
Water Max. Temperature
93 °C195 °F
Documents & Resources
Installation Guide
Installation Guide for 54, 55, and 57 series
Interface Drawing
Interface Control drawing for 55-503-094
Operating Manual
Operating Manual for 54, 55, and 57 series
Service Guide
Service Guide for unions beginning with 55 to 655