Picked up a used Twister T6 for $400 and replaced the gear box for $100 and now its like new again.
The SeaFlo 33-Series is our general-duty on-demand positive displacement pump. It provides reliable performance in high water flow, and moderate pressure applications. This 3-chamber diaphragm pump provides up to 3.0 gallons per minute and is capable of self-priming up to 6 vertical feet, and can run dry without damage. Serves 3 or more 1/2” (13 mm) outlets. This automatic demand water system pump has a built-in pressure switch, which automatically starts and stops when the faucet is opened and closed. They're easy to install, service, and winterize.
Typical Applications
- Agricultural Spraying
- General Industrial
- Automotive
- Marine/RV
Features & Benefits
- Positive displacement pump
- Can run dry
- Quiet operation
- Demand pump
- Low amp draw
- Industry standard mount pattern
- Built in check valve
- Thermally protected
- Easy connect fitting
Specifications for 33-Series Diaphragm Water Pumps
| Model | Voltage | Open Flow GPM/LPM) |
Max Draw | Shut-off Pressure PSI/BAR) |
|---|---|---|---|---|
| SFDP1-030-045-33 | 12V | 3.0 / 11.3 | 6.74A | 45 / 3.1 |
| SFDP2-030-045-33 | 24V | 3.0 / 11.3 | 3.40A | 45 / 3.1 |
| SFDPA1-030-045-33 | 115V | 3.3 / 12.5 | 1.60A | 45 / 3.1 |
- Priming Capabilities: 6 feet (1.8 m) suction lift
- Max Recommended Temperature: 140° F (60° C)Max.
- Material: EPDM(Valves) / Santoprene(Diaphragm)
- Ports: 1/2"-14 MNPT
| Brand | SEAFLO |
|---|---|
| SKU | SFDPA1-033-045-33 |
| Weight (lb.) | 20.0000 |
| Hazardous Material | false |
| Lead Time | 2-3 |
| Prop 65 | false |
| ETL Listed | No |
| UL Listed | No |
| Water Pump Type | Diaphragm Pump |
| Gallons Per Hour | 198 GPH |
What applications suit the SEAFLO 33-Series Diaphragm Water Pump?
The SEAFLO 33-Series Diaphragm Water Pump suits agricultural spraying, general industrial, automotive, and marine or RV water applications. The pump is a general-duty, positive displacement water pump for high-flow, moderate-pressure use.
How much water flow does the SEAFLO 33-Series Diaphragm Water Pump provide for water systems?
The SEAFLO 33-Series Diaphragm Water Pump provides up to 3.3 gallons per minute, or 198 GPH, for water systems. The 115VAC pump has a 45 PSI shut-off pressure.
Can the SEAFLO 33-Series Diaphragm Water Pump supply multiple outlets?
The SEAFLO 33-Series Diaphragm Water Pump can serve three or more 1/2-inch outlets. The pump uses 1/2-inch-14 MNPT ports and includes an easy-connect fitting.
Can the SEAFLO 33-Series Diaphragm Water Pump self-prime and run dry?
The SEAFLO 33-Series Diaphragm Water Pump can self-prime up to 6 vertical feet and can run dry without damage. The pump also includes thermal protection and a built-in check valve.
How does the SEAFLO 33-Series Diaphragm Water Pump control water flow?
The SEAFLO 33-Series Diaphragm Water Pump uses a built-in pressure switch for automatic demand operation. The pump starts when a faucet opens and stops when a faucet closes.
What installation and seasonal maintenance features does the SEAFLO 33-Series Diaphragm Water Pump offer?
The SEAFLO 33-Series Diaphragm Water Pump is designed for easy installation, service, and winterization. The pump features an industry-standard mount pattern, quiet operation, and low amp draw.





