Seaflo SFDP1-030-045-33
Seaflo Series 33 DC Diaphragm Pump 12V Instruction Manual
Model: SFDP1-030-045-33
1. Úvod
The Seaflo Series 33 is a versatile on-demand positive displacement diaphragm pump designed for general purpose use. It delivers reliable performance in high-pressure, high-flow water applications. This 3-chamber diaphragm pump provides up to 3.0 gallons per minute (GPM) and is capable of self-priming up to 6 vertical feet. It can operate dry without damage, making it suitable for various demanding environments.
This pump is designed to serve 3 or more 1/2-inch (13 mm) outlets. It features an automatic demand water system with a built-in pressure switch that automatically starts and stops the pump when a faucet is opened or closed. The Series 33 pump is engineered for easy installation, maintenance, and winterization.
Typické aplikace: Marine, RV, Agricultural Spraying, General Industry, Filtration, Beverage Processing, Solar Water Systems.
2. Vlastnosti a výhody
- On-Demand Use: Activates automatically when water is needed.
- Samonasávání: Can lift water up to 6 vertical feet (1.8 meters).
- Dry Run Capability: Safely operates without water without sustaining damage.
- Adjustable Pressure Switch: Allows for customization of cut-off pressure.
- Ochrana proti tepelnému přetížení: Automatically stops the motor if it overheats due to overload, with an automatic restart feature.
- Tichý provoz: Motor designed for low noise levels.
- Semi-Rigid Rubber Feet: Reduces noise and vibration during operation.
- Multiple Fittings: Threaded connections allow for versatile installation with various outlets.
- Odolná konstrukce: Meets or exceeds RoHS, SGS, and ISO standards.
- Dlouhotrvající: Navrženo pro nepřetržitý servis.
- Zapojení: 16 AWG, 13-inch (33 cm) long wires with 2-pin connector/leads.

3. Specifikace
| Specifikace | Detail |
|---|---|
| Číslo modelu | SFDP1-030-045-33 |
| Typ čerpadla | 3-Chamber Positive Displacement Diaphragm Pump, Self-Priming |
| Typ ovládání | Tlakový spínač |
| svtage | 12 V DC |
| Maximální průtok | 3.0 galonů za minutu (GPM) |
| Maximální tlak | 45 PSI (3.1 BAR) |
| Restartovací tlak | 35 PSI ± 5 PSI (2.4 ± 0.3 BAR) |
| Self-Priming Capabilities | 6 feet (1.8 meters) suction lift |
| Recommended Max Temperature | 60 °C (140 °F) |
| Vstupní / výstupní porty | 1/2 inch - 14 MNPT |
| Hmotnost | 4.2 lb (1.9 kg) |
| Motorové dráty | 16 AWG, 13 inches (33 cm) long with 2-pin connector/leads |
| Pracovní cyklus | Přerušovaný |
| Maximum Amperage Kreslit | 8.0 A |
| Doporučená pojistka | 12.0 A |
| Materiál hlavy | Nylon |
| Head Cap Material | PPS |
| Materiál skříně motoru | Polypropylen |
| Valves/Seals Material | EPDM |
| Materiál membrány | Santopren |



4. Nastavení a instalace
Proper installation is crucial for the optimal performance and longevity of your Seaflo Series 33 pump. Ensure all connections are secure and leak-free.
4.1 Montáž
- Mount the pump in a dry, well-ventilated area.
- The pump can be mounted in any position, but mounting with the pump head down is recommended to prevent water from entering the motor in case of a leak.
- Use the semi-rigid rubber feet to minimize vibration and noise.
4.2 Vodovodní připojení
- Connect the inlet side of the pump to your water source and the outlet side to your distribution system.
- The pump features 1/2 inch - 14 MNPT ports. Use appropriate fittings to connect to your plumbing.
- Install a filter on the inlet side to prevent debris from entering the pump, especially if the water source is not perfectly clean.
- Ensure all connections are tight to prevent air leaks, which can affect priming and performance.


4.3 Elektrické připojení
- Connect the pump to a 12V DC power source.
- Ensure the power source can provide the maximum amperage draw of 8.0 A.
- Install a 12.0 A fuse in the positive (+) power line to protect the pump and electrical system.
- Use the provided 16 AWG wires and 2-pin connector for electrical hookup. Ensure correct polarity.
5. Návod k obsluze
The Seaflo Series 33 pump is designed for automatic, on-demand operation.
- Počáteční základní nátěr: Once installed and connected, open a faucet in your system to allow air to escape. Turn on the power to the pump. The pump will begin to run and self-prime. It may take a few moments for water to flow steadily and for all air to be purged from the lines.
- Automatický provoz: The built-in pressure switch will detect when water is demanded (e.g., by opening a faucet) and automatically start the pump. When the faucet is closed and the system pressure reaches the cut-off setting (45 PSI), the pump will automatically shut off.
- Nastavení tlakového spínače: The pressure switch is factory set. If adjustment is needed, consult a qualified technician. The adjustment screw is typically located under the top end cap.
- Chod na sucho: The pump is capable of running dry without damage, but prolonged dry running should be avoided to conserve power and prevent unnecessary wear.
Důležité: Ensure your water tank always has sufficient water to prevent the pump from running dry for extended periods.
6. Údržba
Regular maintenance ensures the longevity and efficient operation of your Seaflo Series 33 pump.
6.1 Pravidelné kontroly
- Kontrola připojení: Pravidelně kontrolujte veškeré vodovodní a elektrické spoje, zda nedochází k únikům nebo korozi. V případě potřeby je dotáhněte.
- Vyčistěte vstupní filtr: If an inline filter is installed, regularly check and clean the filter screen to prevent blockages and maintain optimal flow.
- Zkontrolujte trosky: Ensure the area around the pump is clear of debris that could obstruct airflow to the motor.
6.2 Zazimování
If the pump will be exposed to freezing temperatures, it must be properly winterized to prevent damage.
- Drain all water from the pump and plumbing system.
- Disconnect the inlet and outlet hoses and allow the pump to run briefly (a few seconds) to expel any remaining water.
- Alternatively, flush the system with non-toxic RV antifreeze.


7. Řešení problémů
This section provides solutions to common issues you might encounter with your Seaflo Series 33 pump.
| Problém | Možná příčina | Řešení |
|---|---|---|
| Čerpadlo se nezapne | No power, blown fuse, loose wiring, faulty switch. | Check power supply, replace fuse (12A recommended), inspect and secure all electrical connections, test the switch. |
| Čerpadlo běží, ale voda neteče | No water in tank, air leak on suction side, clogged inlet filter, pump not primed. | Ensure water supply, check all inlet connections for air leaks, clean inlet filter, allow pump to self-prime by opening a faucet. |
| Nízký průtok nebo tlak | Clogged inlet filter, restricted plumbing, low voltage, worn diaphragm/valves. | Clean inlet filter, check for kinks or blockages in hoses, verify correct voltage, inspect pump head components for wear. |
| Pump cycles on and off rapidly (short cycling) | Small leak in system, pressure switch out of adjustment, insufficient accumulator tank (if used). | Check entire plumbing system for leaks, adjust pressure switch (consult technician), consider adding or checking an accumulator tank. |
| Nadměrný hluk nebo vibrace | Loose mounting, air in system, debris in pump, worn motor bearings. | Secure mounting, purge air from system, inspect pump for foreign objects, contact support if motor noise persists. |
8. Záruka a podpora
8.1 Informace o záruce
The Seaflo Series 33 DC Diaphragm Pump comes with a 2-letá záruka from the date of purchase. This warranty covers defects in materials and workmanship under normal use and service. It does not cover damage caused by improper installation, misuse, neglect, freezing, or unauthorized modifications.
For warranty claims, please retain your proof of purchase and contact Seaflo customer support.
8.2 Zákaznická podpora
For technical assistance, troubleshooting, or parts inquiries, please contact Seaflo customer support. Refer to the official Seaflo webNejnovější kontaktní informace naleznete na webových stránkách nebo na obalu produktu.
Výrobce: SEAFLO
Číslo modelu: SFDP1-030-045-33
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