257-230-020043
- 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
137.9 mm
D1
5.429"
D2
150.7 mm
D2
5.933"
E
36.5 mm
E
1.437"
F
22.2 mm
F
0.874"
G
17.5 mm
G
0.689"
H
32 mm
H
1.26"
J
103.3 mm
J
4.067"
K
1/2"-14 NPT
M
25.4 mm
M
1"
N
47.4 mm
N
1.866"
O
NPT 1/2"-14 RH
P
Non-Threaded
R
137.9 mm
R
5.429"
S3
Threaded
Operating Specifications
Media
Water
Rotor Connection
3/4"-14 NPT RH
Housing Connection
3/4"-14 NPT
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
