Product Overview
The JSG05WB 12V DC diaphragm water pump is designed for clean-water transfer in compact OEM equipment. It provides ≥2.0 L/min free water flow and ≥4 bar maximum pressure under separate test conditions.
The pump operates from DC 11.0–13.0V with a rated voltage of DC 12V. Its compact structure measures approximately 77 mm in body length and weighs about 105 g, making it suitable for equipment with limited installation space.
JSG05WB also provides self-priming capability and supports PWM speed control, FG speed feedback, and FR rotation control according to the current specification.
Core Selling Points of the 12V Diaphragm Water Pump
1. ≥2.0 L/min Free Water Flow – Delivers at least 2.0 L/min free water flow at DC 12V for compact liquid-transfer systems.
2. ≥4 Bar Maximum Water Pressure – Provides at least 4 bar maximum water pressure for systems with tubing, valves, fittings, or restricted outlets.
3. Self-Priming Water Pump Design – Self-priming capability allows the pump to draw water from a source below the installation position.
4. Compact 77 mm Pump Body – The compact 77 mm pump body helps reduce installation space inside OEM equipment.
5. PWM and Feedback Control – Supports PWM, FG, and FR signals for speed adjustment, motor feedback, and rotation control.
What Are the Key Specifications of This 12V Diaphragm Water Pump?
| Item | Specification |
| Product Model | JSG05WB |
| Pump Type | DC Diaphragm Water Pump |
| Rated Voltage | DC 12.0V |
| Operating Voltage | DC 11.0–13.0V |
| Pumping Current | ≤850 mA |
| Free Water Flow | ≥2.0 L/min |
| Maximum Water Pressure | ≥4 bar |
| Self-Priming Vacuum | ≥15 kPa |
| Noise | <55 dB |
| Medium | Clean Water |
| Operating Temperature | 5–50°C |
| Pump Size | 77 × 32 × Ø28 mm |
| Weight | Approx. 105 g |
| Control Options | PWM / FG / FR |
What Are the Dimensions and Installation Details?
JSG05WB uses a compact diaphragm pump structure suitable for installation inside space-limited equipment.
Which Media Is This Diaphragm Water Pump Compatible With?
The confirmed medium for JSG05WB is:
Clean water
| Medium | Recommendation |
| Clean Water | Recommended |
| Water with Particles | Use filtration |
| Detergent Solution | Compatibility test required |
| Alcohol Solution | Material confirmation required |
What Applications Is This DC Liquid Pump Suitable For?
1. Water Dispensing Equipment
JSG05WB suits compact clean-water dispensing systems that need 12V operation and up to ≥2.0 L/min free flow, with final flow verified against tubing and valve resistance.
2. Cleaning Equipment
Its pressure capability makes it a candidate for compact cleaning equipment using tubing or spray components. Final selection should be based on the required flow at the actual working pressure.
3. Water Spray and Rinse Systems
JSG05WB can support clean-water spray and rinse systems, while PWM control allows adjustable water output for different operating modes.
How Do I Choose the Right DC Diaphragm Water Pump?
If Your Equipment Uses a 12V Power Supply
Choose JSG05WB for DC 12V systems operating within the specified 11.0–13.0V range.
If You Need Adjustable Water Flow
Use PWM control when the equipment needs adjustable pump speed and multiple water-output levels. Learn more about pulse-width modulation (PWM) from Analog Devices.
If You Need Motor Speed Feedback
Use the FG feedback signal when the controller needs motor-speed monitoring and operating feedback.
If You Need Reverse-Flow Prevention
Add a suitable check valve when the system must prevent water from flowing backward after the pump stops.
If You Have a Defined Flow and Pressure Requirement
Select the pump based on the actual working point, including required flow, pressure, tubing resistance, voltage, duty cycle, and installation space.
Real Project Cases Using This DC Liquid Pump
1. Coffee Machine
A coffee-machine customer used the JSG05WB 12V DC diaphragm water pump for clean-water delivery inside a compact brewing system. The project required a DC 12V supply, ≥2.0 L/min free flow, and ≥4 bar maximum pressure, while PWM control was used to adjust water output for different operating stages and the compact 77 mm pump body helped fit the pump into the limited internal space.
2. Water Purifier
A water-purifier customer integrated the JSG05WB into a clean-water transfer module that required stable flow through tubing and filter components. The pump provided ≥2.0 L/min free flow, ≥4 bar maximum pressure, DC 11.0–13.0V operation, and PWM speed control, making it suitable for the system’s water-delivery and pressure requirements.
Files and Technical Documents
Why Work With JSG DC PUMP as Your OEM Pump Supplier?
Professional Micro Pump Manufacturer – JSG DC PUMP develops air, vacuum, diaphragm, piston, and liquid pumps for OEM equipment.
Engineering-Based Selection – We match pumps to flow, pressure or vacuum, voltage, duty cycle, noise, and installation requirements.
Stable Quality Control – Key electrical, pneumatic, appearance, and airtightness parameters are inspected before delivery.
OEM / ODM Support – Custom options include voltage, wiring, connectors, port orientation, and motor configuration.
Project Sampling Support – Samples can be tested in actual equipment before mass production.
OEM Application Experience – We support industrial, laboratory, pneumatic, vacuum, testing, and medical equipment applications.
Send us your required flow, working pressure, voltage, tubing size, duty cycle, and installation space. Our engineering team can help evaluate the JSG05WB for your application and provide samples or OEM/ODM support.
Email: admin@dc-pump.com
