Union, 90 mm flange, 50 mm pilot, 1-1/2" PT
557-045-203
- Monoflow and duoflow design
- Self-supported rotating union
- Radial housing connection
- Balanced mechanical seals
- Keyed rotor seal
- Easy and quick replacement of sealing components
- Ball bearings lubricated for life
- E.L.S. (Extended Life Service) seal combination for poor water quality
- 3 vent holes
- Forged brass housing and stainless steel rotor
- Special options include threaded vent holes
Dimensions
A
90.3 mm3.555 "
B
1-1/2"-11 PT1-1/2"-11 PT
C
108 mm4.252 "
D1
199 mm7.835 "
E
45 mm1.772 "
F
9 mm0.354 "
G
34.9 mm1.374 "
I
49.949 mm1.966 "
J
140 mm5.512 "
K
1-1/4"-11.5 NPT1-1/4"-11.5 NPT
P
Non-ThreadedNon-Threaded
X
9 mm0.354 "
Operating Specifications
Media
WaterWater
Rotor Connection
90.3 mm3.555 "
Supply Connection
1-1/2"-11 PT 1-1/2"-11 PT
Water Max. Flow
252.8 l/min66.8 GPM
Water Max. Pressure
10 bar150 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 557-045-203
Operating Manual
Operating Manual for 54, 55, and 57 series
Service Guide
Service Guide for unions 57-series unions