257-031-048
- 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
Imperial
Metric
Dimensions
A
M27x1.5 RH
B
3/4"-14 NPT
C
73.03 mm
C
2.875"
D1
5.512"
D1
140 mm
E
1.378"
E
35 mm
F
21 mm
F
0.827"
G
0.689"
G
17.5 mm
H
1.417"
H
36 mm
I
1.102"
I
27.993 mm
J
3.622"
J
92 mm
K
1/2"-14 NPT
P
M10x1
X
0.236"
X
6 mm
Operating Specifications
Media
Water, Steam, Hot Oil
Rotor Connection
M27x1.5 RH, 27.993 mm pilot
Rotor Connection
M27x1.5 RH, 1.102" pilot
Housing Connection
3/4"-14 NPT
Hot Oil
Max. Flow
13.9 GPM
Hot Oil
Max. Flow
52.8 l/min
Hot Oil
Max. Pressure
100 psi
Hot Oil
Max. Pressure
6.9 bar
Hot Oil
Max. Temperature
250 °F
Hot Oil
Max. Temperature
121 °C
Steam
Max. Flow
58.1 GPM
Steam
Max. Flow
219.9 l/min
Steam
Max. Pressure
15 psi
Steam
Max. Pressure
1 bar
Steam
Max. Temperature
250 °F
Steam
Max. Temperature
121 °C
Water
Max. Flow
13.9 GPM
Water
Max. Flow
52.8 l/min
Water
Max. Pressure
750 psi
Water
Max. Pressure
51.7 bar
Water
Max. Temperature
250 °F
Water
Max. Temperature
121 °C
