Union, Duoflow, M27x1.5 RH, 28 mm pilot, 3/4" NPT
257-031-048977
- 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
M27x1.5 RHM27x1.5 RH
B
3/4"-14 NPT3/4"-14 NPT
C
73.03 mm2.875 "
D1
135.85 mm5.348 "
D2
171.6 mm6.756 "
E
35 mm1.378 "
F
21 mm0.827 "
G
17.5 mm0.689 "
H
36 mm1.417 "
I
27.993 mm1.102 "
J
94.5 mm3.72 "
K
1/2"-14 NPT1/2"-14 NPT
M
26 mm1.024 "
N
45.5 mm1.791 "
O
NPT 1/2"-14 RHNPT 1/2"-14 RH
P
M10x1M10x1
R
154 mm6.063 "
S
18 mm0.709 "
S2
10.8 mm0.425 "
S3
FixedFixed
X
6 mm0.236 "
Operating Specifications
Media
Hot Oil, Steam, WaterHot Oil, Steam, Water
Rotor Connection
M27x1.5 RH M27x1.5 RH
Supply Connection
3/4"-14 NPT 3/4"-14 NPT
Hot Oil Max. Flow
52.8 l/min13.9 GPM
Hot Oil Max. Pressure
6.9 bar100 psi
Hot Oil Max. Temperature
121 °C250 °F
Steam Max. Flow
219.9 l/min58.1 GPM
Steam Max. Pressure
1 bar15 psi
Steam Max. Temperature
121 °C250 °F
Water Max. Flow
52.8 l/min13.9 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 257-031-048977
Operating Manual
Operating Manual for 54, 55, and 57 series
Service Guide
Service Guide for unions 57-series unions