DC Water Pumps & Solenoid Valves - Submersible & Dosing Pumps – Robocraze

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Buy DC Pump Online in India

Robocraze offers a diverse selection of DC water pumps and solenoid valves tailored for various applications. Whether setting up an aquarium, integrating into a solar water heater system, or working on an electronic door lock, our collection has you covered.

Our selection includes durable DC pumps that are available at numerous voltages. We are proud of our high-quality products, which are durable and reliable.

Order your DC pumps from us and experience the blend of performance and affordability that sets us apart.

Pump Categories

Submersible Pumps

Operate underwater and used for continuous water movement.
Ideal for aquariums, cooling systems, hydroponics, and small fountains.
Simple plug-and-use design with minimal noise.

Dosing Pumps

Deliver precise, small amounts of liquids at controlled intervals.
Used in labs, chemical mixing, hydroponics nutrient control, and medical DIY projects.
Great for automation where accuracy is important.

Solenoid Pumps / Solenoid Valves (SOVs)

Use electromagnetic actuation to start or stop liquid flow.
Ideal for water dispensing machines, automated plants, and DIY fluid control projects.
Available in normally-open or normally-closed types.

Brushless DC Pumps

Efficient, long-life pumps with high flow rates and quiet operation.
Best for cooling electronics, RC models, battery-powered systems, and continuous circulation.

Pump Selection Guide (Flow Rate, Voltage, Size)

Flow Rate (L/H or LPM)

Defines how much water the pump can move.

Small projects: 80–200 L/H
Medium DIY systems: 200–600 L/H
High-flow applications: 1000+ L/H

Voltage Compatibility

Common pump voltages: 5V, 6V, 9V, 12V, 24V
Choose based on your power supply or battery system.
Lower voltages are safer for hobby and educational electronics.

Size & Mounting

Submersible pumps require sufficient water depth.
Inline pumps must be mounted securely with compatible tubing.
Ensure the outlet nozzle matches your pipe or hose diameter.

Current Draw & Power Consumption

Ensure your power supply or driver can handle peak pump current.
High-load pumps may require relay modules, MOSFETs, or dedicated drivers.

Duty Cycle

Some pumps support continuous operation — ideal for aquariums and hydroponics.
Others are built for intermittent use — better for automation tasks and DIY experiments.

Applications of Pumps & Solenoid Valves

Aquariums → Water recirculation, filtration, aeration systems
Labs & Research → Controlled chemical dosing, precise liquid transfers
Home Automation → Automatic plant watering, smart water dispensers
DIY Electronics → Arduino/ESP32 liquid flow control, mini fountains, prototypes
Robotics & Cooling → Liquid cooling for high-power electronics or motors
Hydroponics → Nutrient delivery, water circulation, flood-and-drain systems
Beverage / Vending Machines → Automated liquid dispensing with solenoid valves

DC vs AC Pumps

Feature	DC Pumps	AC Pumps
Power Source	Battery/adapter (5–24V)	Mains supply (110–230V)
Safety	Safer for beginners, low voltage	Requires high-voltage safety
Control	Easy with Arduino/ESP32 (PWM, relays)	Needs relays/SSR for switching
Noise	Usually quieter	Slightly louder, more vibration
Applications	DIY electronics, cooling, RC, small fountains	Large fountains, high-power systems, home appliances
Maintenance	Easy, modular	Long-lasting but harder to repair

Setup & Maintenance Tips

Always prime the pump (fill with water) before running, especially for brushless models.
Do not run submersible pumps dry, as it damages the motor.
Use a relay module or MOSFET for pump control via Arduino/ESP32.
Install waterproof connectors when placing pumps underwater.
Clean filters, impellers, and inlet/outlet regularly to maintain flow rate.
Keep pumps free from algae, debris, and mineral deposits.
For solenoid valves:
- Ensure correct flow direction (arrow marking)
- Use a strainer to prevent clogging
- Avoid dry running for long durations
Check tubing and seals for leaks; replace hardened or cracked pipes.

Buy solenoid valve Online in India

Browse our collection of solenoid valves which has been curated to provide our customers with accurate solenoid valves. The solenoid valves we offer bring the performance and reliability you require to control fluids.

We are aware that precision matters, as does long-lasting. Every solenoid valve we offer is thoroughly tested to ensure it performs at its best.

Price List of DC Water Pumps, Solenoid Valves in India

Solenoid Valve, DC pump	Cost
Solenoid valve 12V	Rs.245/-
12V 2W Solenoid Valve	Rs.1026/-
Water Pump	Rs.47/-
R385 DC PUMP	Rs.175/-
Brushless Water Pump	Rs.465/-

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1. Why do solenoid valves fail?

Solenoid valves may stop working for a multitude of reasons. It may not open because of power failure, uneven pressure, wrong voltage, dirt under the diaphragm, corrosion, missing components, or a burnt coil.

2. What is a solenoid pump?

A solenoid valve is an electrically controlled valve. It is made of a magnetic plunger that rests on the orifice, blocking the flow, when it’s in its off position. When the electric signal is passed, the current flows through a coil creating a magnetic field and attracting the plunger away from the orifice, thus opening it.

3. What is the function of a solenoid valve?

Solenoid valves are used to control the flow of fluids electrically. It can be compared to a relay where a relay acts as an electric switch whereas a valve acts like a fluid switch. Solenoid valves are simple and effective control valves. They are used in air compressors, used as metering valves, pressure release valves, drink dispensers, etc.

4. What are the types of solenoid valves?

Solenoid valves are classified by actuation method and flow path. Direct-acting valves use electromagnetic force directly to open the valve; fast but require full power. Pilot-operated valves use fluid pressure to operate, consuming less power but needing pressure differential. By ports: 2-way (on/off control), 3-way (mixing/diverting), 4-way (multi-directional flow). Also available as normally open or normally closed configurations depending on application safety requirements.

5. Where are solenoids used?

Solenoid valves are simple and effective control valves. They are used in air compressors, used as metering valves, pressure release valves, drink dispensers, etc.

6. Are solenoids AC or DC?

Solenoid valves are available in both AC and DC configurations and each of them is used depending on what is convenient. AC Solenoid valves are slightly more complicated than DC solenoid valves so DC valves are generally preferred in many cases.

7. What types of DC water pumps are available?

DC water pumps are classified by application and design. Submersible pumps sit in water tanks quietly, ideal for aquariums and low-lift applications. Diaphragm/dosing pumps deliver precise liquid amounts for chemical treatment. Surface/inline pumps push water across open paths against pressure. Centrifugal pumps offer high flow rates; positive displacement suit low-viscosity fluids. Common voltages: 5V (mini), 12V, 24V. Choose based on flow rate, lift height, and power requirements.

8. Can solenoid valves be used for water flow control?

Yes, solenoid valves are excellent for controlling water flow in DIY and maker projects. A solenoid valve can open or close a water path when an electrical signal is applied, giving you automated control of water flow. They’re commonly used for switching tanks, controlling irrigation, enabling/disabling pumps, or integrating into systems where fluid passage needs to be managed electronically. Their precision and ease of control make them a strong companion to pumps.

9. Are these pumps suitable for aquariums?

Definitely many of the small DC submersible pumps offered are designed exactly for aquarium or small water circulation uses. They are built to run underwater, move modest amounts of water with low noise, and fit compact tanks or setups. If you pick a model with compatible voltage, low heat and stable flow rate, they’re quite suitable for aquatic environments.

10. What voltage do these pumps operate on?

The voltage depends on the model, but in the DIY/maker category you’ll often see pumps that operate on 5 V, 6 V, 12 V or even 24 V DC. For example, a mini submersible pump might run at 5 V or 12 V in a maker board environment. It’s very important to match the pump’s specified voltage to your power supply to avoid damage or poor performance.

11. How do I choose the right dosing pump?

When picking a dosing pump (for precise fluid delivery), consider these factors: 1.Flow rate – how much volume you need per minute or hour. 2.Head/lift – the pressure or height you need to push the fluid against. 3.Chemical compatibility – if you’re pumping water, that’s easy; for other fluids you’ll want materials that resist corrosion. 4.Control method – do you need to adjust flow manually, via pulse signals or via controller? Dosing pumps often support pulse or external control inputs. 5.Voltage/power supply – ensure the pump matches your system’s voltage and your wiring can handle the current. 6.Installation orientation and plumbing – proper inlet/outlet tubing, avoiding air bubbles, correct mounting to ensure reliable suction and delivery. By checking those criteria, you’ll ensure the dosing pump works reliably in your project, whether it's aquarium dosing, water treatment, or automated irrigation.