1. Product Overview
The Seaflo Series 22 diaphragm pumps are compact and designed for a wide range of applications including liquid transfer, spraying, circulation, filtration, and dispensing. These pumps are self-priming, capable of running dry without damage, and feature an internal bypass function that reduces pump cycling. This miniature multi-outlet water pressure pump serves 1 or 2 outlets simultaneously. It includes a built-in pressure switch that automatically starts and stops the pump when a faucet is opened and closed.
Typical Applications: Marine, RV, agricultural spraying, general industrial use, filtration, beverage processing, and solar water systems.
Figure 1: Angled view of the Seaflo Series 22 Diaphragm Pump, highlighting its compact design and connection points.
2. Key Features
- Bypass Technology: Reduces cycling and wear on the pressure switch.
- Dry Run Capability: Safely operates without liquid, preventing damage.
- Electrical Connections: Equipped with 18 AWG wires, 9.5 inches (25 cm) long, with a 2-pin connector/leads.
- Adjustable Pressure Switch: Allows for customizable pressure settings.
- Durable Construction: Meets or exceeds RoHS, SGS, and ISO standards.
Figure 2: Diagram illustrating key features and benefits, including bypass technology, hose connections, quiet motor, adjustable pressure switch, and rubber feet for vibration reduction.
3. Setup and Installation
3.1 Safety Precautions
- Ensure the power supply is disconnected before installation.
- Do not pump flammable liquids.
- Wear appropriate personal protective equipment.
3.2 Mounting the Pump
- Select a dry, well-ventilated location for mounting, protected from direct sunlight and freezing temperatures.
- Mount the pump on a solid surface using appropriate fasteners. The pump can be mounted horizontally or vertically.
- Ensure there is sufficient space around the pump for ventilation and access for maintenance.
3.3 Plumbing Connections
- Connect the inlet hose to the pump's inlet port (typically marked). Use 10 mm (3/8") hose barb fittings.
- Connect the outlet hose to the pump's outlet port.
- Ensure all connections are secure and leak-free. Use hose clamps where necessary.
- Avoid kinks or sharp bends in the hoses, which can restrict flow.
3.4 Electrical Connections
- Connect the pump's 12V DC wires to a suitable power source. The red wire is positive (+), and the black wire is negative (-).
- Install a 9.0 A fuse in the positive (+) line to protect the pump and electrical system.
- Ensure all electrical connections are clean, tight, and protected from moisture.
Figure 3: Top view of the pump, illustrating the electrical wiring (red and black) and the hose barb connections for inlet and outlet.
4. Operating Instructions
- Priming the Pump: The pump is self-priming. Open a faucet on the discharge side to allow air to escape. Turn on the power to the pump. The pump will draw water and push air out of the system. Once a steady stream of water flows, close the faucet.
- Automatic Operation: The built-in pressure switch will automatically turn the pump on when the system pressure drops (e.g., when a faucet is opened) and turn it off when the pressure builds up (e.g., when a faucet is closed).
- Adjusting Pressure Switch (if applicable): If your model has an adjustable pressure switch, refer to the diagram (Figure 2) or specific instructions for adjusting the cut-in/cut-out pressure. The factory setting for cut-off pressure is 100 PSI, with a restart pressure of 75 PSI ± 5 PSI.
- Running Dry: The pump is designed to run dry without damage, but continuous dry running should be avoided to conserve energy and prevent unnecessary wear.
5. Maintenance
5.1 Regular Checks
- Periodically inspect all hose connections for leaks and tighten if necessary.
- Check electrical connections for corrosion or looseness.
- Ensure the pump mounting is secure and free from excessive vibration.
5.2 Winterization (for marine/RV applications)
- Drain all water from the pump and plumbing system to prevent freezing damage.
- Run non-toxic antifreeze through the pump if recommended for your specific application.
5.3 Material Composition
Understanding the materials helps with proper maintenance and compatibility with liquids.
- Pump Head: Nylon
- Head Cover: PPS
- Motor Housing: Polypropylene
- Valves/Seals: EPDM
- Diaphragm: Santoprene
Figure 4: Diagram detailing the materials used for various pump components, including housings, valves/seals, diaphragm, and motor.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Pump does not turn on. | No power, blown fuse, loose wiring, faulty pressure switch. | Check power supply, replace fuse (9.0 A), tighten connections, test/replace pressure switch. |
| Pump runs but no water flows. | Air in system, clogged inlet filter, dry run, kinked hose, low water supply. | Prime the pump, clean inlet filter, ensure water supply, straighten hoses. |
| Pump cycles on and off rapidly. | Air in system, small leak in plumbing, restricted flow, faulty pressure switch. | Bleed air, check for leaks, ensure clear flow path, adjust/replace pressure switch. |
| Low flow or pressure. | Clogged filter, restricted inlet/outlet, worn diaphragm, low voltage. | Clean filter, check hoses, inspect diaphragm, verify 12V power supply. |
7. Specifications
| Model Number | SFDP1-013-100-22 |
| Pump Type | 2-chamber positive displacement diaphragm pump, self-priming, capable of dry running. |
| Control Type | Pressure switch and bypass control |
| Maximum Recommended Temperature | 60 °C (140 °F) |
| Priming Capabilities | 1.8 m (6 feet) suction lift |
| Shut-off Pressure | 100 PSI |
| Restart Pressure | 75 PSI ± 5 PSI (± 0.3 bar) |
| Inlet/Outlet Ports | 10 mm (3/8") hose barb |
| Flow Rate | 5.0 LPM (1.3 GPM) |
| Voltage | 12V DC |
| Max Current Draw | 6.0 A |
| Fuse Amps | 9.0 A |
| Weight | 1.1 kg (2.4 lbs) |
| Dimensions (L x W x H) | 18.7L x 11W x 7.2H cm |
| Motor Leads | 18 AWG, 25 cm (10") length with 2-pin connector/leads |
| Duty Cycle | Intermittent |
Figure 5: Detailed dimensional drawing of the pump, showing various measurements in both inches and millimeters for installation planning.
8. Warranty and Support
This Seaflo pump comes with a 2-year warranty. For warranty claims or technical support, please contact your retailer or visit the official Seaflo website. Ensure you have your model number (SFDP1-013-100-22) and proof of purchase available.
The product is designed to meet or exceed international standards including RoHS, SGS, and ISO, ensuring quality and reliability.