SUPERSEDED by 157-050-021
155-208-185
- 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
3/4"-16 UNF RH3/4"-16 UNF RH
B
1/2"-14 NPT1/2"-14 NPT
C
57.2 mm2.252 "
D1
117 mm4.606 "
E
34.4 mm1.354 "
F
19 mm0.748 "
G
12.7 mm0.5 "
H
28.5 mm1.122 "
J
78.8 mm3.102 "
K
3/8"-18 NPT3/8"-18 NPT
P
Non-ThreadedNon-Threaded
Operating Specifications
Media
WaterWater
Rotor Connection
3/4"-16 UNF RH 3/4"-16 UNF RH
Supply Connection
1/2"-14 NPT 1/2"-14 NPT
Water Max. Flow
26.9 l/min7.1 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
Operating Manual
Operating Manual for 54, 55, and 57 series
Service Guide
Service Guide for unions beginning with 55 to 655