• banner

Diaphragm air pump 3V small electric booster air pump | PINCHENG

Short Description:

The Pinmotor 3V DC micro diaphragm pump delivers ≥0.8 L/min airflow and ≥350 mmHg pressure for medical-grade performance.

Engineered for blood pressure monitors and portable beauty tools, it features a ≤55dB low-noise profile and high durability in a compact, battery-efficient design.

 

 


  • Model Number: 310A
  • Type: Electric Micro air pump
  • Material: ABS
  • Princle: Diaphragm Pump
  • Vacuum Degree : High vacuum
  • Conveying medium: Air
  • Product Detail

    Video

    Technical FAQ

    Product Tags

    Customized Service

    To provide customers with quality products and satisfactory service

    MOQ 500pcs

    Fast Delivery

    Customized Sample

    Excellent Quality

    Competitive Price

    Modern Testing Equipment

    PYP310-XA

    High-Durability Micro Diaphragm Technology

    The Pincheng Micro Diaphragm Series is engineered for versatile fluid management, delivering consistent flow rates across air, water vapor, and liquid media. Its compact footprint does not compromise performance, making it an ideal choice for space-constrained medical and industrial integrations.

    Advanced Valve Architecture & Longevity

    The superior service life of this miniature vacuum pump is driven by two core design principles:

    • Optimized Laminar Flow: The valve flow path is precision-molded to be ultra-smooth, minimizing internal turbulence and ensuring a stable, constant displacement.

    • Hard-Composite Valve Materials: By utilizing high-durometer, abrasion-resistant internal components, the pump maintains structural integrity under high-frequency oscillation. This rugged construction allows the unit to consistently pass rigorous industrial certification tests and long-term reliability trials.

    Multi-Phase Compatibility

    Wear-Resistant Internals

    Long Lifetime

    https://www.pinmotor.net/diaphragm-air-pump-3v-small-electric-booster-air-pump-pincheng-product/

    Product Information

    PYP310-XA Diaphragm air pump

    *Other Parameters: according to customer demand for design
    Rate Voltage DC 3V DC 6V DC 9V DC 12V
    Rate Current ≤800mA ≤400mA ≤260mA ≤200mA
    Power 2.4w 2.4w 2.4w 2.4w
    Air Tap .O.D φ 4.3mm
    Air Flow 0.5-3.0 LPM
    Inflation Time ≤10s (From 0 to 300 mmHg in a 500cc tank
    Maximum Pressure ≥60Kpa(450mmHg)
    Noise Level ≤60db (30cm away)
    Life Test ≥50,00 Times (ON 10 s;OFF 5s)
    Weight 36g
    Leakage <3mm Hg/min (From 300 mmHg in a 500cc tank

    Engineering Integration Notes

    Technical guidelines for optimizing pneumatics, acoustics, and power management in battery-powered and medical device housings.

    Pneumatic Circuit Optimization

    To maintain a stable ≥ 0.8 L/min flow and prevent backpressure issues, precise tubing and dampening strategies are required:

    • Tubing Specifications: Use medical-grade silicone or PVC tubing with an Internal Diameter (ID) of 2.5mm for optimal friction-fit on barbed nozzles.
    • Pulsation Dampening: To smooth the naturally pulsed flow of diaphragm mechanisms, integrate a small inline buffer chamber (5–10ml). This is critical for high-precision dosing and sensor accuracy.

    Acoustic & Vibration Isolation

    While the pump operates at < 55 dB, mechanical resonance can amplify perceived noise if not properly isolated:

    • Floating Mounts: Avoid rigid bolting to plastic chassis. Utilize NBR rubber grommets or silicone suspension mounts to decouple vibration.
    • Enclosure Venting: Ensure the device housing includes an air vent to prevent cavity resonance, which can otherwise increase noise levels by up to 10 dB.

    Electrical Integration & Power Management

    The 3V high-torque motor requires protection against inductive spikes and precise control for battery efficiency:

    • Flyback Protection: Always integrate a flyback diode (e.g., 1N4001) in parallel with the motor to safeguard microcontrollers and MOSFETs from back-EMF spikes.
    • PWM Control: For variable flow rates, use a PWM frequency between 15kHz and 25kHz to eliminate audible "whining" while maintaining control within the 1.5V – 3.7V range.

    Thermal Management in Compact Spaces

    Heat dissipation directly impacts MTBF (Mean Time Between Failures) in wearable healthcare devices:

    • Duty Cycle: For optimal lifespan in 3V applications, a duty cycle of 10s ON / 5s OFF is recommended.
    • Continuous Run: If operation exceeds 30 minutes, ensure adequate airflow or use a thermal pad to prevent EPDM diaphragm "set" (heat-induced deformation).

    Troubleshooting Common Issues

    Symptom Potential Cause Recommended Solution
    Reduced Flow Rate Blocked intake filter or kinked tubing. Inspect tubing for tight bends; replace the intake filter.
    Increased Noise Mechanical resonance or loose mounting. Check NBR isolation mounts; ensure the pump is not touching the device chassis.
    Pump Not Starting Voltage drop under load or motor stall. Verify the power supply can handle the startup current (surge); check battery levels.
    Pressure Leakage Tubing degradation or improper fit. Replace silicone tubing; ensure the inner diameter (ID) matches the barbed nozzle.

     

    Specification Engineering Drawing

    Detailed engineering drawing showing the compact footprint and port orientation of the 3V small electric booster pump for PCB integration.

    Images for micro gear pump---100% live-action shooting, Quality Guarantee

    Close-up photo showing the precision-molded barbed nozzle and EPDM diaphragm of the 3V DC micro air pump for leak-proof tubing connection.

    Application

    The PYP130 3V micro pump is engineered for high-precision, low-power environments. Below is a technical breakdown of its deployment across key industrial and medical sectors.

    Industry Sector Typical Application Key Benefit of PCW030 Technical Requirement
    Medical Devices Portable Blood Pressure Monitors High-torque startup at $\le 1.5\text{V}$ Stable inflation pressure $\ge 350\text{ mmHg}$
    Healthcare Eye Massagers & Wearables Ultra-low noise profile ($< 55 \text{ dB}$) Compact footprint for ergonomic design
    Beauty Tech Blackhead Removers / Hydrafacial Precise vacuum suction control Abrasion-resistant EPDM diaphragm
    Environment Handheld Gas Detectors Consistent laminar airflow Chemical-resistant internal valve path
    Aromatherapy Smart Scent Diffusers Reliable long-term duty cycle Zero-leakage pneumatic seal
    Automation Microfluidic Gas Sampling Fast priming & response time PWM-compatible flow adjustment

     

    Tea set application using a food-grade micro DC water pump for automatic water dispensing.

    Tea table

    Small vacuum packing appliance using a miniature DC pump for air extraction.

    Vacuum packing machine

    Bottled water dispenser application requires a safe, food-grade mini electric water pump.

    Water dispenser

    Automatic foam hand sanitizer dispenser powered by a micro electric pump.

    Foam hand sanitizer

    Electric wine decanter utilizing a small DC pump for fluid circulation.

    Electric decanter

    Dishwasher appliance utilizing a reliable DC water pump for water circulation.

    dishwasher

    Manufacturing Quality & Compliance

    PinMotor leverages high-precision automotive process disciplines to ensure our 3V micro pumps deliver industrial-grade reliability within consumer-scale footprints. By implementing rigorous quality frameworks, we provide a stable supply chain for high-volume medical and beauty device manufacturers.

    Official ISO 9001:2015 Certification Badge for Pinmotor high-quality manufacturing.

    ISO 9001:2015 Certified

    We don't just source materials; we verify them. Every batch of EPDM rubber and high-carbon steel motor brushes undergoes durometer testing and composition analysis to ensure thermal stability and wear resistance under high-frequency oscillation.

    Pinmotor Automotive Quality Management System (IATF 16949:2016 Certified)

    IATF 16949 Compliant

    We don't just build pumps; we engineer reliability into the design phase. Following APQP frameworks, we perform DFMEA (Design Failure Mode and Effects Analysis) on every 3V pump variant to identify and mitigate potential failure points—such as diaphragm fatigue or valve oxidation—before mass production begins.

    reach

    RoHS & REACH Fully Compliant

    The PYP310 Series is engineered for seamless integration into international markets. We proactively manage our supply chain to ensure every component—from the high-performance motor brushes to the EPDM diaphragm—meets the stringent environmental and safety standards of the European Union and North America.

    Technical Note: Full documentation, including material safety data sheets (MSDS) and compliance certificates, is available upon request for your engineering audit.

    We supply more than just product, we engineer solutions optimised to suit your application requirements.

    Compare, select, buy your pump


  • Previous:
  • Next:

  • Technical FAQ: 3V Micro Diaphragm Air Pump

    What is the rated service life of the 3V micro air pump?

    The Pincheng 3V micro pump is rated for a service life of ≥ 100,000 cycles under standard load conditions (10s on/5s off). Actual longevity depends on duty cycle and environmental factors; for continuous duty applications, we recommend consulting our engineers for MTBF data.

    Can this 3V pump operate on a 3.7V Lithium-ion battery?

    Yes. While optimized for 3V DC, the pump’s operating voltage range is 1.5V to 3.7V. Operating at 3.7V will increase airflow and pressure but may slightly elevate noise levels and thermal output during extended runs.

    Is the PCW030 air pump compatible with medical-grade silence requirements?

    Our 3V pump operates at < 55 dB when measured from a distance of 30cm. For ultra-quiet medical environments (bedside monitors), we suggest using localized sound-dampening foam or silicone vibration mounts to further reduce acoustic resonance within the device housing.

    What materials are used in the diaphragm, and are they chemical resistant?

    We utilize high-grade EPDM (Ethylene Propylene Diene Monomer) for the diaphragm and high-strength engineering plastics for the pump head. This combination offers excellent ozone resistance and durability, though it is primarily designed for air and non-corrosive gas media.

    What are the standard port dimensions for tubing integration?

    The pump features a standard barbed nozzle design. We recommend using medical-grade silicone tubing with an inner diameter (ID) of 2.0mm to 3.0mm to ensure a secure, leak-proof friction fit without the need for external clamps.

    Does Pincheng Motor offer OEM/ODM customization for specific flow rates?

    Yes. We can customize motor windings, valve materials, and port orientations to meet specific pressure or flow requirements. Small-batch samples are typically available for engineering validation within 5–7 business days.

     

     

  • Write your message here and send it to us