Union, Duoflow, 1-3/4" UNF LH, 1-1/4" NPT
527-000-027104
- 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
1-3/4"-12 UNF LH1-3/4"-12 UNF LH
B
1-1/4"-11.5 NPT1-1/4"-11.5 NPT
C
90.5 mm3.563 "
D1
186.8 mm7.354 "
D2
237.2 mm9.339 "
E
56.8 mm2.236 "
F
28.6 mm1.126 "
G
31.8 mm1.252 "
H
46 mm1.811 "
J
118.7 mm4.673 "
K
1"-11.5 NPT1"-11.5 NPT
M
35 mm1.378 "
N
73 mm2.874 "
O
NPT 3/4"-14 RHNPT 3/4"-14 RH
P
Non-ThreadedNon-Threaded
R
208 mm8.189 "
S
38.1 mm1.5 "
S2
19.02 mm0.749 "
S3
RotatingRotating
Operating Specifications


Media
WaterWater
Rotor Connection
1-3/4"-12 UNF LH 1-3/4"-12 UNF LH
Supply Connection
1-1/4"-11.5 NPT 1-1/4"-11.5 NPT
Water Max. Flow
174.3 l/min46 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
Operating Manual
Operating Manual for 54, 55, and 57 series
Service Guide
Service Guide for unions 57-series unions