257-045-284
- 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
G 3/4"-14 RH
B
3/4"-14 NPT
C
2.875"
C
73.03 mm
D1
138 mm
D1
5.433"
E
1.339"
E
34 mm
F
0.752"
F
19.1 mm
G
17.4 mm
G
0.685"
H
31.5 mm
H
1.24"
J
3.661"
J
93 mm
K
1/2"-14 NPT
P
Non-Threaded
Operating Specifications
Media
Water, Steam, Hot Oil, Water
Rotor Connection
G 3/4"-14 RH
Housing Connection
3/4"-14 NPT
Water
Max. Flow
13.9 GPM
Water
Max. Flow
52.8 l/min
Water
Pressure
10 bar
Water
Pressure
150 psi
Water
Temperature
93 °C
Water
Temperature
195 °F
Hot Oil
Max. Flow
13.9 GPM
Hot Oil
Max. Flow
52.8 l/min
Hot Oil
Pressure
100 psi
Hot Oil
Pressure
6.9 bar
Hot Oil
Temperature
250 °F
Hot Oil
Temperature
121 °C
Steam
Max. Flow
58.1 GPM
Steam
Max. Flow
219.9 l/min
Steam
Pressure
15 psi
Steam
Pressure
1 bar
Steam
Temperature
250 °F
Steam
Temperature
121 °C
Water
Max. Flow
13.9 GPM
Water
Max. Flow
52.8 l/min
Water
Pressure
750 psi
Water
Pressure
51.7 bar
Water
Temperature
250 °F
Water
Temperature
121 °C
