Union, Duoflow, 1-1/2" NPT RH, 1-1/2" NPT
555-000-001144
- 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
1-1/2"-11.5 NPT RH1-1/2"-11.5 NPT RH
B
1-1/2"-11.5 NPT1-1/2"-11.5 NPT
C
107.95 mm4.25 "
D1
215.9 mm8.5 "
D2
261.938 mm10.313 "
E
61.913 mm2.438 "
F
30.163 mm1.188 "
G
38.1 mm1.5 "
H
55 mm2.165 "
J
152.4 mm6 "
K
1-1/4"-11.5 NPT1-1/4"-11.5 NPT
M
38.1 mm1.5 "
N
77.788 mm3.063 "
O
NPT 3/4"-14 RHNPT 3/4"-14 RH
P
Non-ThreadedNon-Threaded
R
225 mm8.858 "
S
30 mm1.181 "
S2
25.4 mm1 "
S3
RotatingRotating
Operating Specifications


Media
Hot Oil, Steam, WaterHot Oil, Steam, Water
Rotor Connection
1-1/2"-11.5 NPT RH 1-1/2"-11.5 NPT RH
Supply Connection
1-1/2"-11.5 NPT 1-1/2"-11.5 NPT
Hot Oil Max. Flow
252.8 l/min66.8 GPM
Hot Oil Max. Pressure
6.9 bar100 psi
Hot Oil Max. Temperature
121 °C250 °F
Steam Max. Flow
1,053.5 l/min278.3 GPM
Steam Max. Pressure
1 bar15 psi
Steam Max. Temperature
121 °C250 °F
Water Max. Flow
252.8 l/min66.8 GPM
Water Max. Pressure
51.7 bar750 psi
Water Max. Temperature
121 °C250 °F
Documents & Resources
Installation Guide
Installation Guide for 54, 55, and 57 series
Interface Drawing
Interface Control drawing for 555-000-001144
Operating Manual
Operating Manual for 54, 55, and 57 series
Service Guide
Service Guide for unions beginning with 55 to 655