Union, G 1/2" RH, 22 mm pilot, G 1/2"
157-969-973
- 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
G 1/2"-14 RHG 1/2"-14 RH
B
G 1/2"-14G 1/2"-14
C
57.2 mm2.252 "
D1
317.13 mm12.485 "
D2
346 mm13.622 "
E
234 mm9.213 "
F
218.5 mm8.602 "
G
8 mm0.315 "
H
30 mm1.181 "
I
22 mm0.866 "
J
77.5 mm3.051 "
K
G 3/8"-19G 3/8"-19
M
67 mm2.638 "
N
40 mm1.575 "
O
NPT 3/8"-18 RHNPT 3/8"-18 RH
P
Non-ThreadedNon-Threaded
R
333 mm13.11 "
S3
FixedFixed
X
5 mm0.197 "
Operating Specifications
Media
WaterWater
Rotor Connection
G 1/2"-14 RH G 1/2"-14 RH
Supply Connection
G 1/2"-14 G 1/2"-14
Water Max. Flow
26.9 l/min7.1 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 157-969-973
Operating Manual
Operating Manual for 54, 55, and 57 series
Service Guide
Service Guide for unions 57-series unions