Union, Duoflow, 3/4" UNF RH, 1/2" NPT
157-050-021061
- 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
3/4"-16 UNF RH3/4"-16 UNF RH
B
1/2"-14 NPT1/2"-14 NPT
C
57.2 mm2.252 "
D1
124 mm4.882 "
D2
150 mm5.906 "
E
35 mm1.378 "
F
19 mm0.748 "
G
12.7 mm0.5 "
H
30 mm1.181 "
J
79 mm3.11 "
K
3/8"-18 NPT3/8"-18 NPT
M
18 mm0.709 "
N
43 mm1.693 "
O
NPT 3/8"-18 RHNPT 3/8"-18 RH
P
Non-ThreadedNon-Threaded
R
124 mm4.882 "
S
14.4 mm0.567 "
S2
9.3 mm0.366 "
S3
RotatingRotating
Operating Specifications
Media
Hot Oil, Steam, WaterHot Oil, Steam, Water
Rotor Connection
3/4"-16 UNF RH 3/4"-16 UNF RH
Supply Connection
1/2"-14 NPT 1/2"-14 NPT
Hot Oil Max. Flow
26.9 l/min7.1 GPM
Hot Oil Max. Pressure
6.2 bar90 psi
Hot Oil Max. Temperature
121 °C250 °F
Steam Max. Flow
112.2 l/min29.6 GPM
Steam Max. Pressure
1 bar15 psi
Steam Max. Temperature
121 °C250 °F
Water Max. Flow
26.9 l/min7.1 GPM
Water Max. Pressure
51.7 bar750 psi
Water Max. Temperature
121 °C250 °F
Documents & Resources
Installation Guide
Installation Guide for 54, 55, and 57 series
Interface Drawing
Interface Control drawing for 157-050-021061
Operating Manual
Operating Manual for 54, 55, and 57 series
Service Guide
Service Guide for unions 57-series unions