Micro Diaphragm Air Pump 11 L/min Double Head Quiet Pump for Medical Sampling BD-05T0511LB | BODENFLO

The BD-05T0511LB is a micro diaphragm air pump designed for OEM gas handling and medical sampling systems, delivering 11 L/min flow in parallel connection, -90 kPa vacuum in series connection, and brushless motor operation for compact equipment requiring strong airflow, vacuum performance, and stable gas transfer.

Additional information

Voltage

12 V DC

Max Flow

11 L/min (parallel connection), 7 L/min (series connection)

Max Vacuum

-70 kPa (parallel connection), -90 kPa (series connection)

Max Pressure

2.2 bar

Motor

Brushless DC Motor

Max Power

18 W

Weight

230 g

Overview of BD-05T0511LB Micro Diaphragm Air Pump

The BD-05T0511LB is a compact micro diaphragm air pump designed for OEM systems that require higher airflow, strong vacuum performance, and flexible gas path configuration. Its dual-head structure allows engineers to configure the pump in parallel connection for higher flow or series connection for higher vacuum, depending on the system requirement.

With 11 L/min flow in parallel connection, -90 kPa vacuum in series connection, and a brushless DC motor, this model is suitable for medical sampling, analytical instruments, vacuum-assisted systems, and compact gas transfer equipment. For OEM integration, it provides a practical balance of airflow, vacuum capability, service life, and compact installation.

Key Features of BD-05T0511LB Double Head Gas Pump

  • Dual-Head Gas Path Configuration – Supports parallel connection for higher airflow or series connection for higher vacuum.
  • 11 L/min Parallel Flow – Provides stronger gas transfer capacity for sampling, ventilation, and pneumatic functions.
  • -90 kPa Series Vacuum – Helps support applications requiring deeper vacuum performance in a compact pump structure.
  • 2.2 Bar Positive Pressure – Enables the pump to support selected pressure-side gas transfer or pneumatic assistance tasks.
  • Brushless DC Motor – Reduces brush wear and supports longer operating cycles in OEM equipment.
  • Low Leakage Seal Design – Helps maintain stable vacuum and airflow performance during gas handling.
  • Compact 12 V Structure – Suitable for equipment where installation space, power supply, and system layout are limited.

Technical Specifications of BD-05T0511LB Air Diaphragm Pump

The following specifications help engineers evaluate whether BD-05T0511LB matches the required airflow, vacuum level, pressure output, electrical conditions, and installation space before sample testing.

Category Specification
Basic Information  
Model BD-05T0511LB
Type Air Diaphragm Pump
Structure Double-Head Diaphragm Pump
Voltage Range 12 V DC
Parallel Connection Performance  
Flow 11 L/min (0.388 cfm)
Negative Pressure -70 kPa (-20.7 in.Hg / -700 mbar / -525 mmHg)
Series Connection Performance  
Flow 7 L/min (0.247 cfm)
Negative Pressure -90 kPa (-26.6 in.Hg / -900 mbar / -675 mmHg)
Pressure Performance  
Max Positive Pressure 2.2 bar (31.9 psi / 2200 mbar / 0.22 MPa)
Electrical & Motor Data  
Motor Type Brushless DC Motor
No-Load Current 0.32 A
Max Power 18 W
Control Signal 0–5 V PWM speed control, FG speed feedback
Noise 60 dB
Lifetime 8000 h
Mechanical Data  
Dimensions 70.5 × 31 × 67 mm
Weight 230 g
Recommended Tubing Size ID4 mm / OD6 mm soft hose
Operating Conditions  
Operating Environment 5°C to 40°C
Medium Temperature 10°C to 40°C

Standard Materials & Reliability

The standard material configuration is designed for clean gas transfer and vacuum generation in compact OEM equipment. PA66 pump head material and EPDM diaphragm/valve components provide a practical balance of mechanical strength, sealing performance, and cost control for common gas applications.

Component Material / Feature
Pump Head PA66
Diaphragm / Valve EPDM
Seal Design Low leakage gas path design
Motor Brushless DC motor
Lifetime 8000 h under controlled test conditions

For applications involving corrosive gases, special gas samples, or stricter compatibility requirements, material compatibility should be reviewed before testing. Optional rubber material configurations can be discussed according to the target gas, concentration, working temperature, and expected service life.

OEM Customization Options

If the standard version does not fully match your system design, BODENFLO can support selected customization items for OEM integration.

Item Customization Options
Voltage 12 V standard; project-based adjustment available
Motor Type Brushless DC motor with duty-cycle tuning support
Connection Mode Parallel or series connection according to flow/vacuum demand
Materials EPDM standard; customized rubber material options available
Wiring Custom cable length and wire definition
Connector Open leads, plug connectors, or OEM interface
Tubing ID4 mm / OD6 mm soft hose standard; custom tubing available
Control Signal 0–5 V PWM speed control and FG speed feedback
Branding Customer-specific marking or private label
Mounting Custom bracket or installation structure support

BODENFLO can also help configure tubing, connectors, wiring, and mounting accessories before delivery. This reduces assembly work and helps OEM engineers shorten prototype integration time.

Typical Applications of BD-05T0511LB Air Vacuum Pump

BD-05T0511LB is suitable for equipment requiring compact airflow, vacuum generation, or pressure-side gas transfer. The dual-head structure makes it useful when engineers need to choose between higher flow and deeper vacuum in one pump platform.

  • Medical Sampling Systems – Supports clean gas sampling and vacuum generation in compact medical or diagnostic equipment.
  • Analytical Instruments – Provides airflow or vacuum support for gas analysis, sample transfer, and detection modules.
  • Vacuum Sampling Devices – Helps draw gas samples through filters, chambers, or sampling lines.
  • Laboratory Equipment – Supports suction, gas circulation, and compact vacuum generation in bench-top instruments.
  • Portable Detection Devices – Suitable for gas detectors, air quality monitors, and compact inspection equipment.
  • Pneumatic Control Modules – Provides pressure or vacuum support for small pneumatic functions in OEM devices.

Why Choose BODENFLO for Your OEM Air Pump Project

Selecting the right micro diaphragm air pump is more than comparing airflow or vacuum values. A suitable OEM partner should help reduce development time, lower integration risk, and simplify long-term production. BODENFLO supports customers from prototype evaluation to volume manufacturing with practical engineering support throughout the project.

  • Reduce Development Time
    Instead of testing multiple pump models yourself, we help recommend the most suitable configuration based on your required airflow, vacuum level, pressure, duty cycle, and installation space—saving valuable engineering time during product development.
  • Lower Prototype Costs
    The dual-head design supports both parallel connection for higher airflow and series connection for deeper vacuum, allowing more performance options from a single pump platform and reducing the need to evaluate multiple pump models.
  • Reduce Integration Risk
    We assist with tubing layout, connection methods, PWM control, FG speed feedback, wiring, and mounting recommendations before prototype assembly, helping minimize installation issues and unexpected redesigns.
  • Improve System Reliability
    By reviewing sealing performance, tubing resistance, leakage paths, and operating conditions, we help customers achieve more stable airflow and vacuum performance in real applications—not just under laboratory test conditions.
  • Flexible OEM Customization
    Cable length, connectors, tubing, labeling, mounting structures, and selected material options can be customized to better match your equipment, reducing additional assembly work after delivery.
  • Reliable Long-Term Supply
    From prototype samples to mass production, BODENFLO provides consistent manufacturing, quality control, and stable supply support, helping OEM customers reduce sourcing risk throughout the product lifecycle.

Customer Feedback from OEM Applications

Real application feedback helps buyers understand how BD-05T0511LB performs in practical gas handling systems.

Germany | Analytical Instrument Engineer
Application: Gas sampling module
Feedback: The dual-head structure allowed us to choose between stronger flow and deeper vacuum during early system testing.

Finland | Medical Equipment Developer
Application: Medical sampling system
Feedback: The pump provided enough airflow for our sampling line while keeping the system compact.

South Korea | Portable Detector Manufacturer
Application: Gas detection device
Feedback: The brushless motor and compact body helped us integrate the pump into a limited internal space.

Installation & Usage Notes

Correct installation helps maintain airflow, vacuum level, and service life in OEM equipment.

Connection Mode Selection
Use parallel connection when the system requires maximum airflow. Use series connection when the system requires deeper vacuum. Confirm the connection method during prototype testing according to real system resistance.

Tubing Installation
Use ID4 mm / OD6 mm soft hose. Keep tubing connections sealed to avoid vacuum loss, pressure drop, or unstable gas flow. Avoid long tubing, sharp bends, or narrow passages when high flow is required.

Wiring Definition
Red Wire: Power Positive (+)
Black Wire: Power Negative (–)
Blue Wire: PWM control signal, 0–5 V speed regulation
Yellow Wire: FG speed feedback signal

Mounting Guidance
Fix the pump securely to reduce vibration and avoid resonance with the equipment housing. If the pump is installed close to sensitive sensors or acoustic components, vibration isolation should be evaluated during testing.

Gas Compatibility
The standard diaphragm and valve material is EPDM. For corrosive gases or special sample gases, confirm compatibility before testing and discuss customized material options if needed.

Operating Environment
Operating environment: 5°C to 40°C
Medium temperature: 10°C to 40°C
Avoid blocked outlets, excessive inlet restriction, continuous overload, or operation outside the recommended temperature range.

Downloads – Datasheet

[BD-05T0511LB Micro Diaphragm Air Pump Datasheet (PDF)]

FAQ – BD-05T0511LB Micro Diaphragm Air Pump

Q1:How do I choose between higher airflow and deeper vacuum for my OEM project?

The BD-05T0511LB supports both operating modes. Parallel connection delivers up to 11 L/min airflow with approximately -70 kPa vacuum, while series connection provides up to -90 kPa vacuum with around 7 L/min airflow. Rather than selecting based only on catalog values, we recommend evaluating chamber volume, tubing length, response time, and system resistance to determine the most suitable configuration.

Q2: My equipment cannot reach the expected vacuum. How can I identify the real cause?

In many cases, the pump is not the limiting factor. Vacuum performance can be reduced by air leakage, long tubing, undersized fittings, clogged filters, poor sealing, or excessive chamber volume. Testing the pump under open conditions first and then comparing it with the installed system is often the fastest way to locate the source of performance loss.

Q3: How can I reduce development risk when integrating this air diaphragm pump?

Successful integration depends on more than airflow specifications. Factors such as connection method, tubing layout, inlet resistance, PWM control, speed feedback, and mounting structure all influence final system performance. BODENFLO can provide engineering recommendations during prototype development to help reduce redesign work and shorten development time.

Q4: Can this micro diaphragm air pump be customized for OEM equipment?

Yes. BODENFLO supports OEM customization including voltage, wiring, connectors, tubing interfaces, labeling, and mounting solutions. Customization helps simplify equipment integration and reduces additional assembly work during production.

Q5: Do you offer other airflow or vacuum options?

Yes. BODENFLO offers a complete range of micro diaphragm air pumps with different airflow, pressure, and vacuum configurations. Whether your application requires higher airflow, deeper vacuum, lower noise, or a more compact size, our engineering team can recommend a suitable model for your OEM project.

Representative Models

Type Voltage Model Max Flow Max Pressure Max Vacuum
Single-Head Diaphragm Air Pump 12V / 24V DC BD-05TVB-S 4.6 L/min 1–1.5 bar -70 kPa
Double-Head Diaphragm Air Pump 12V / 24V DC BD-05TVB 7.2 L/min 1–1.5 bar -70 kPa
Single-Head Diaphragm Air Pump 12V / 24V DC BD-05T067L 7 L/min 2.5 bar -85 kPa
Double-Head Diaphragm Air Pump 12V / 24V DC BD-05T0511LB 11 L/min 2.2 bar -70 kPa
Single-Head Diaphragm Air Pump 12V / 24V DC BD-05T0910LB 11 L/min 3 bar -85 kPa

If you're unsure which model best fits your application, simply share your required airflow, pressure, vacuum level, operating voltage, duty cycle, and application, and our engineering team will recommend the most suitable solution.

Contact BODENFLO – OEM Air Diaphragm Pump Solutions

If you are developing medical sampling systems, gas detection devices, analytical instruments, or compact vacuum equipment, BODENFLO can support pump selection, customization, sample testing, and long-term OEM supply.

What We Can Provide

Pump selection support based on flow, vacuum, pressure, tubing, and connection mode
Material recommendations for gas compatibility and service life targets
OEM customization of wiring, connectors, tubing, labels, and mounting structures
Engineering support for prototype testing and integration review
Flexible sample delivery for early-stage evaluation
Stable manufacturing capacity for long-term OEM and private-label projects

📧 Email: info@bodenpump.com
🌐 Website: https://bodenpump.com/

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