Union, 7" flange, 4.1" pilot, 2" NPT
857-002-145
- Monoflow and duoflow design
- Self-supported rotating union
- Radial housing connection
- Balanced mechanical seals
- Seal combination: Carbon Graphite/Tungsten Carbide
- Full-media flow
- Easy and quick replacement of sealing components
- Vented housing
- Cast iron housing
- Steel rotor
Dimensions
A
185 mm7.283 "
B
2"-11.5 NPT2"-11.5 NPT
C
190 mm7.48 "
D1
364 mm14.331 "
D2
454 mm17.874 "
E
93 mm3.661 "
F
8 mm0.315 "
G
73 mm2.874 "
I
105 mm4.134 "
J
271 mm10.669 "
K
3"-8 NPT3"-8 NPT
M
75 mm2.953 "
N
144 mm5.669 "
O
NPT 2"-11.5 RHNPT 2"-11.5 RH
R
364 mm14.331 "
S
85 mm3.346 "
S2
58.7 mm2.311 "
S3
RotatingRotating
X
8 mm0.315 "
Operating Specifications
Media
Steam, WaterSteam, Water
Rotor Connection
185 mm7.283 "
Supply Connection
2"-11.5 NPT 2"-11.5 NPT
Steam Max. Flow
4170 l/min1,101.6 GPM
Steam Max. Pressure
1 bar15 psi
Steam Max. Temperature
121 °C250 °F
Water Max. Flow
1001 l/min264.4 GPM
Water Max. Pressure
10 bar150 psi
Water Max. Temperature
121 °C250 °F
Documents & Resources
Operating Manual
Operating Manual for 54, 55, and 57 series
Service Guide
Service Guide for unions beginning with 857