257-000-020043
- 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
3/4"-14 NPT RH
B
3/4"-14 NPT
C
73.03 mm
C
2.875"
D1
132 mm
D1
5.197"
D2
6.772"
D2
172 mm
E
37 mm
E
1.457"
F
0.866"
F
22 mm
G
0.669"
G
17 mm
H
31.8 mm
H
1.252"
J
104 mm
J
4.094"
K
1/4"-18 NPT
M
26 mm
M
1.024"
N
45 mm
N
1.772"
O
NPT 1/2"-14 RH
P
Non-Threaded
R
132 mm
R
5.197"
S3
Threaded
Operating Specifications
Media
Water, Steam, Hot Oil
Rotor Connection
3/4"-14 NPT RH
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
