Union, 165 mm flange, 140 mm pilot, 1-1/2" NPT
557-003-500
- 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
101.6 mm4 "
D1
217.5 mm8.563 "
E
63.7 mm2.508 "
F
6.35 mm0.25 "
G
38 mm1.496 "
I
140.13 mm5.517 "
J
161.3 mm6.35 "
K
1-1/4"-11.5 NPT1-1/4"-11.5 NPT
P
Non-ThreadedNon-Threaded
X
6.35 mm0.25 "
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
121 °C250 °F
Documents & Resources
Installation Guide
Installation Guide for 54, 55, and 57 series
Interface Drawing
Interface Control drawing for 557-003-500
Operating Manual
Operating Manual for 54, 55, and 57 series
Service Guide
Service Guide for unions 57-series unions