Union, 2-1/2" UNF RH, 2" NPT
657-000-272177
- 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
2-1/2"-12 UNF RH2-1/2"-12 UNF RH
B
2"-11.5 NPT2"-11.5 NPT
C
117.5 mm4.626 "
D1
242.3 mm9.539 "
D2
308.8 mm12.157 "
E
67.7 mm2.665 "
F
38.1 mm1.5 "
G
47.6 mm1.874 "
H
60.3 mm2.374 "
J
157.4 mm6.197 "
K
1-1/4"-11.5 NPT1-1/4"-11.5 NPT
M
57.2 mm2.252 "
N
89.4 mm3.52 "
O
NPT 1"-11.5 RHNPT 1"-11.5 RH
P
Non-ThreadedNon-Threaded
R
260.5 mm10.256 "
S
18 mm0.709 "
S2
31.6 mm1.244 "
S3
RotatingRotating
Operating Specifications
Media
WaterWater
Rotor Connection
2-1/2"-12 UNF RH 2-1/2"-12 UNF RH
Supply Connection
2"-11.5 NPT 2"-11.5 NPT
Water Max. Flow
390.5 l/min103.2 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 657-000-272177
Operating Manual
Operating Manual for 54, 55, and 57 series
Service Guide
Service Guide for unions 57-series unions