Union, Duoflow, G 1-1/2" RH, 1-1/2" NPT

557-050-198468

  • 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

Selected dimensions for this product
A
G 1-1/2"-11 RH
B
1-1/2"-11.5 NPT
C
108 mm
D1
240 mm
D2
270 mm
E
72.2 mm
F
38.3 mm
G
38.1 mm
H
55 mm
J
148.8 mm
K
1-1/4"-11.5 NPT
M
38 mm
N
75.8 mm
O
NPT 3/4"-14 RH
P
Non-Threaded
R
240 mm
S
33.6 mm
S2
26 mm
S3
Rotating

Operating Specifications

Recommended operating limits for pressure and speed
Media
Water
Rotor Connection
G 1-1/2"-11 RH
Supply Connection
1-1/2"-11.5 NPT
Water Max. Flow
252.8 l/min
Water Max. Pressure
10 bar
Water Max. Temperature
93 °C

Documents & Resources

Installation Guide
Installation Guide for 54, 55, and 57 series
Interface Drawing
Interface Control drawing for 557-050-198468
Operating Manual
Operating Manual for 54, 55, and 57 series
Service Guide
Service Guide for unions 57-series unions