Union, 1-3/4" UN RH, 48 mm pilot, 1-1/4" NPT
525-189-031
- 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
1-3/4"-12 UN RH1-3/4"-12 UN RH
B
1-1/4"-11.5 NPT1-1/4"-11.5 NPT
C
90 mm3.543 "
D1
191 mm7.52 "
E
56.6 mm2.228 "
F
34.9 mm1.374 "
G
32 mm1.26 "
H
46 mm1.811 "
I
47.625 mm1.875 "
J
113.9 mm4.484 "
K
1"-11.5 NPT1"-11.5 NPT
P
Non-ThreadedNon-Threaded
X
34.9 mm1.374 "
Operating Specifications
Media
Hot Oil, Steam, WaterHot Oil, Steam, Water
Rotor Connection
1-3/4"-12 UN RH 1-3/4"-12 UN RH
Supply Connection
1-1/4"-11.5 NPT 1-1/4"-11.5 NPT
Hot Oil Max. Flow
174.3 l/min46 GPM
Hot Oil Max. Pressure
6.9 bar100 psi
Hot Oil Max. Temperature
121 °C250 °F
Steam Max. Flow
726.2 l/min191.8 GPM
Steam Max. Pressure
1 bar15 psi
Steam Max. Temperature
121 °C250 °F
Water Max. Flow
174.3 l/min46 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 525-189-031
Operating Manual
Operating Manual for 54, 55, and 57 series