SM-303-B Models
Features:
- Low flow provides minimal flow velocities thereby reducing the
effect of pipe erosion and noise caused by vibration.
- Rated for temperatures to 220 degree F and line pressures to 150
PSI
- Requires only 33 watts of power
- Dry run cutout provided on pumps for hot water recirculation
Material of Wetted Parts:
- Brass Housing

- 316 Stainless Steel Rotor and Separating Wall
- Noryl Impeller
- Ceramic Bearing Ball
- Carbon Graphite Bearing Cap
- EPDM O-Ring
Technical Data:
|
Model
|
Volts
|
Cycle
|
Phase
|
Watts
|
Amps
|
Maximum. Pressure
|
Maximum Temperature
|
Weight (lbs.)
|
|
SM-303-B
|
115
|
60
|
1
|
33
|
0.30
|
150 PSI
|
230F
|
2.5
|
|
SM-303-B
|
230
|
60
|
1
|
33
|
0.15
|
150 PSI
|
230F
|
2.5
|
|
SM-353-B
|
230
|
50
|
1
|
28
|
0.13
|
150 PSI
|
230F
|
2.5
|
|
Performance Curve:

|
Dimension Drawings:

|

Ordering Information:
Standard pump configuration includes brass inline housing,
concealed capacitor, and internal terminal strip w/ wiring diagram for
hard wiring.
Housing Connection Codes:
BS 1/2" - Brass inline housing with 1/2"sweat fittings
BT 1/2" - Brass inline housing with 1/2" NPT female thread fittings
Options Available:
- 6 ft. line cord with plug (115V models Only)
- 230V, 60Hz, 50Hz, and 24VAC motors
- Adjustable Thermostat (95-158F)