Union, 3" NPT LH, 2" NPT
857-004-102
- 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
3"-8 NPT LH3"-8 NPT LH
B
2"-11.5 NPT2"-11.5 NPT
C
190.5 mm7.5 "
D1
368 mm14.488 "
D2
446 mm17.559 "
E
87.2 mm3.433 "
F
47.6 mm1.874 "
G
73 mm2.874 "
H
102 mm4.016 "
J
246 mm9.685 "
K
3"-8 NPT3"-8 NPT
M
75 mm2.953 "
N
138 mm5.433 "
O
NPT 2"-11.5 RHNPT 2"-11.5 RH
R
361 mm14.213 "
S3
ThreadedThreaded
Operating Specifications


Media
Steam, WaterSteam, Water
Rotor Connection
3"-8 NPT LH 3"-8 NPT LH
Supply Connection
2"-11.5 NPT 2"-11.5 NPT
Steam Max. Flow
4170 l/min1,101.6 GPM
Steam Max. Pressure
3.5 bar50 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
Interface Drawing
Interface Control drawing for 857-004-102
Operating Manual
Operating Manual for 54, 55, and 57 series
Service Guide
Service Guide for unions beginning with 857