Union, M50x1.5 RH, 1-1/2" NPT

557-000-459

  • 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
M50x1.5 RH
B
1-1/2"-11.5 NPT
C
108 mm
D1
219 mm
E
65.8 mm
F
33.8 mm
G
38 mm
H
55 mm
J
147 mm
K
1-1/4"-11.5 NPT
P
Non-Threaded

Operating Specifications

Recommended operating limits for pressure and speed
Media
Water
Rotor Connection
M50x1.5 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 557-000-459
Operating Manual
Operating Manual for 54, 55, and 57 series
Service Guide
Service Guide for unions 57-series unions