Union, 1" UNS RH, 1/4" NPT

Product photo

257-113-118

  • 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
1"-14 UNS RH
B
1/4"-18 NPT
C
63.5 mm
D1
156 mm
E
32 mm
F
16 mm
G
16.7 mm
H
35 mm
J
90 mm
K
1/4"-18 NPT
P
1/8"-28 NPT
R
116.4 mm
S3
Rotating

Operating Specifications

Recommended operating limits for pressure and speed
Media
Hot Oil, Steam, Water
Rotor Connection
1"-14 UNS RH
Supply Connection
1/4"-18 NPT
Hot Oil Max. Flow
52.8 l/min
Hot Oil Max. Pressure
6.9 bar
Hot Oil Max. Temperature
121 °C
Steam Max. Flow
219.9 l/min
Steam Max. Pressure
1 bar
Steam Max. Temperature
121 °C
Water Max. Flow
52.8 l/min
Water Max. Pressure
51.7 bar
Water Max. Temperature
121 °C

Documents & Resources

Installation Guide
Installation Guide for 54, 55, and 57 series
Interface Drawing
Interface Control drawing for 257-113-118
Operating Manual
Operating Manual for 54, 55, and 57 series
Service Guide
Service Guide for unions 57-series unions