Union, 165 mm flange, 83 mm pilot, 1-1/2" NPT
557-003-552
- 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
165.1 mm6.5 "
B
1-1/2"-11.5 NPT1-1/2"-11.5 NPT
C
107 mm4.213 "
D1
216 mm8.504 "
E
63.4 mm2.496 "
F
7.65 mm0.301 "
G
38 mm1.496 "
I
82.5 mm3.248 "
J
147.6 mm5.811 "
K
1-1/4"-11.5 NPT1-1/4"-11.5 NPT
P
Non-ThreadedNon-Threaded
X
7.65 mm0.301 "
Operating Specifications
Media
WaterWater
Rotor Connection
165.1 mm6.5 "
Supply Connection
1-1/2"-11.5 NPT 1-1/2"-11.5 NPT
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
Operating Manual
Operating Manual for 54, 55, and 57 series
Service Guide
Service Guide for unions 57-series unions