Union, 305 mm flange, 287 mm pilot, 2-1/2" NPT
755-709-543
- Monoflow and duoflow design
- Self-supported rotating union
- Radial housing connection
- Balanced mechanical seals
- 3 vent slots
- Cast iron housing standard
- Steel rotor
Dimensions
A
304.8 mm12 "
B
2-1/2"-8 NPT2-1/2"-8 NPT
C
203.2 mm8 "
D1
328.9 mm12.949 "
D2
394.5 mm15.531 "
E
180.2 mm7.094 "
F
6.4 mm0.252 "
G
60.3 mm2.374 "
I
287.45 mm11.317 "
J
246 mm9.685 "
K
2"-11.5 NPT2"-11.5 NPT
M
55.5 mm2.185 "
N
107.2 mm4.22 "
O
NPT 1-1/4"-11.5 RHNPT 1-1/4"-11.5 RH
P
Non-ThreadedNon-Threaded
R
293 mm11.535 "
S2
40.589 mm1.598 "
S3
BrazedBrazed
X
6.4 mm0.252 "
Operating Specifications
Media
Steam, WaterSteam, Water
Rotor Connection
304.8 mm12 "
Supply Connection
2-1/2"-8 NPT 2-1/2"-8 NPT
Steam Max. Flow
2896 l/min765 GPM
Steam Max. Pressure
1 bar15 psi
Steam Max. Temperature
121 °C250 °F
Water Max. Flow
695 l/min183.6 GPM
Water Max. Pressure
13.8 bar200 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 755-709-543
Operating Manual
Operating Manual for 54, 55, and 57 series
Service Guide
Service Guide for unions beginning with 755