SUPERSEDED by 257-1005-028
255-012-016
- Monoflow and duoflow operation
- Self-supported rotating union
- Radial housing connection
- Balanced mechanical seals
- 3 vent holes
- Forged brass housing and stainless steel rotor
- Special options include threaded vent holes, low torque design
- Seal Combinations: Carbon Graphite/Bronze for water; Carbon Graphite/Ceramic for hot oil, hot water and saturated steam; Tungsten Carbide/Ceramic for severe conditions such as poor water quality
Dimensions
A
1"-14 UNS RH1"-14 UNS RH
B
3/4"-14 NPT3/4"-14 NPT
C
73.03 mm2.875 "
D1
162 mm6.378 "
E
54 mm2.126 "
F
32 mm1.26 "
G
16 mm0.63 "
H
41 mm1.614 "
I
31.7 mm1.248 "
J
101.9 mm4.012 "
K
1/2"-14 NPT1/2"-14 NPT
P
Non-ThreadedNon-Threaded
X
13 mm0.512 "
Operating Specifications
Media
Hot Oil, Steam, WaterHot Oil, Steam, Water
Rotor Connection
1"-14 UNS RH 1"-14 UNS 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 255-012-016
Operating Manual
Operating Manual for 54, 55, and 57 series
Service Guide
Service Guide for unions beginning with 55 to 655