Union, Duoflow, 1-3/4" UN RH, 1-1/4" NPT
525-576-026104
- 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
90.5 mm3.563 "
D1
186 mm7.323 "
D2
236 mm9.291 "
E
55.65 mm2.191 "
F
28.5 mm1.122 "
G
31.75 mm1.25 "
H
46 mm1.811 "
J
146.2 mm5.756 "
K
3/4"-14 NPT3/4"-14 NPT
M
33.5 mm1.319 "
N
71.2 mm2.803 "
O
NPT 3/4"-14 RHNPT 3/4"-14 RH
P
Non-ThreadedNon-Threaded
R
201 mm7.913 "
S
25 mm0.984 "
S2
19.25 mm0.758 "
S3
RotatingRotating
Operating Specifications
Media
Hot WaterHot 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 Water Max. Flow
174.3 l/min46 GPM
Hot Water Max. Pressure
51.7 bar750 psi
Hot Water Max. Temperature
121 °C250 °F
Documents & Resources
Installation Guide
Installation Guide for 54, 55, and 57 series
Operating Manual
Operating Manual for 54, 55, and 57 series