Product Overview
The BD-05TVB-S is a compact brushless diaphragm pump developed for gas sampling, gas analysis, vacuum control, and low-pressure air delivery. It supports 12 V and 24 V DC power supplies and has a maximum rated power of 5 W.
The pump’s PWM speed control and FG feedback enable the equipment controller to regulate the pump’s output and monitor the motor’s operating condition.The pump uses a PPS pump head, nylon body, and standard EPDM diaphragm and valves. Customized FKM sealing materials are available for gases requiring stronger chemical resistance.
Core Selling Pointsof This Brushless Diaphragm Pump
1. Dual pressure and vacuum capability supports gas delivery, suction, sampling, and chamber evacuation.
2. Up to 10,000 hours of brushless motor life helps improve reliability in long-term OEM operation.
3. Compact 60.4 × 32 × 55 mm structure simplifies installation inside portable and desktop equipment.
4. Reliable Operation Across Changing Temperatures Supports an operating environment from –20°C to 50°C and gas-medium temperatures from –10°C to 45°C.
What Are the Key Specifications of This Brushless Diaphragm Pump?
| Product Model | BD-05TVB-S | |
| Pump Type | DC Diaphragm air pump | DC Diaphragm vacuum pump |
| Voltage | 12V / 24V | |
| Max Flow | 4.6 L/min | |
| Max Pressure | 1.5 bar | / |
| Max Vacuum | / | -70 kPa |
| Power | 5 W | |
| Motor Type | Brushless DC motor | |
| Life Expectancy | 10000hours | |
| Weight | 148 g | |
| Dimensions | Approx. 60.4 × 32 × 55 mm | |
| Media | Air / clean gas | |
| Wetted Materials | EPDM / FKM | |
| Working Mode | Intermittent / continuous depending on load point | |
How Does This Brushless Diaphragm Pump Perform Under Real Load?
The maximum open-flow value does not represent the final flow inside a complete gas system. Tubing, filters, sensors, valves, chambers, and connectors all create resistance and reduce the available working flow.
BD-05TVB-S Series Flow vs Vacuum
What Are the Dimensions and Installation Details?
The BD-05TVB-S measures 60.4 × 32 × 55 mm and weighs approximately 148 g. Its compact body can be installed inside gas analyzers, monitoring equipment, portable instruments, and small pneumatic modules.
BD-05TVB-S Dimensional Drawing
Which Media and Materials Is This Brushless Diaphragm Pump Compatible With?
The standard version uses an EPDM diaphragm and EPDM valves. A customized FKM configuration is available for gases containing oil vapor, fuel vapor, or selected chemical components.
Standard EPDM
| Media Type | Notes |
| Clean air | Standard application |
| Inert gas | Final compatibility should be confirmed by project |
| Mild moisture air | Cost-effective and suitable for general humid air conditions |
Enhanced FKM
| Media Type | Notes |
| Inert gas | Recommended when better chemical resistance is needed |
| Corrosive gas | Better chemical resistance and higher temperature resistance |
What Applications Is This Brushless Diaphragm Pump Suitable For?
1. Gas Analysis and Sampling Equipment
The BD-05TVB-S draws sample gas through tubing, filters, sensors, and compact analysis chambers, while PWM control adjusts the flow for different measurement stages and FG feedback helps monitor motor speed, blockage, wiring faults, and operating changes. It is suitable for portable gas analyzers, environmental monitoring instruments, industrial gas detectors, laboratory sampling equipment, breath-analysis modules, and air-quality monitoring systems.
2. Vacuum Control and Leakage-Test Equipment
With a maximum vacuum of –70 kPa, the pump can evacuate small chambers, tubes, sealed parts, and test fixtures.It can support vacuum generation, vacuum holding, suction control, pressure-decay testing, and component leakage inspection. A check valve and small buffer chamber can be added when the system requires a more stable holding vacuum.
How Do I Choose the Right Version of This Brushless Diaphragm Pump?
1. Choose the 12 V version for portable, battery-powered, or existing 12 V equipment.
2. Choose the 24 V version for gas analyzers, monitoring systems, and industrial equipment using a standard 24 V power platform.
3. Use the EPDM version for clean air and general sample gases without oil or aggressive chemical vapors.
4. Use the FKM version for oil vapor, fuel vapor, and compatible chemical gases after confirming media compatibility.
Real Product Cases Using This Brushless Diaphragm Pump BD-05TVB-S
Case 1: Portable Multi-Gas Analyzer
A customer developing a portable multi-gas analyzer needed a compact pump to draw sample gas through a dust filter, moisture separator, tubing, and sensor chamber. Because the original pump became less stable as resistance increased, the customer selected a 24 V BD-05TVB-S with FKM diaphragm and valves. The pump operated at approximately 2.5 L/min and –12 kPa, providing steadier sampling during repeated measurement cycles. The FKM configuration also improved compatibility with sample gases containing light hydrocarbon vapors.
Case 2: Small Valve Leakage Test System
A miniature valve manufacturer needed a compact vacuum source for an automated leakage-test fixture. The previous system fluctuated during vacuum holding, making true component leakage difficult to distinguish from system instability. The customer selected a 12 V BD-05TVB-S with EPDM diaphragm and valves. The system also included a check valve, digital vacuum sensor, and small buffer tank. The pump evacuated a 50 ml test chamber to approximately –60 kPa. This improved vacuum stability and test repeatability without changing the existing 12 V power platform.
Files and Technical Documents
Why Work With DC-PUMP for Your Brushless Diaphragm Pump Project?
Professional Micro Pump Manufacturer–DC-PUMP focuses on miniature air pumps, vacuum pumps, liquid pumps, diaphragm pumps, and piston pump solutions for OEM equipment.
Engineering-Based Model Selection–In addition, our team helps customers choose suitable pump models according to real system load, working flow, pressure, vacuum, noise, lifetime, and installation requirements.
Stable Quality Control–Therefore, pump performance, appearance, air-tightness, and basic operating parameters can be checked before delivery to support more reliable project use.
OEM / ODM Support–Moreover, we can support voltage selection, material options, tubing direction, wiring requirements, speed control, and other customization needs according to project conditions.
Project Sampling Support–Before mass production, customers can test samples under their real equipment structure to confirm airflow, vacuum, pressure, vibration, and working stability.
Export Experience–At the same time, DC-PUMP supplies micro pump products for medical devices, laboratory equipment, beauty instruments, industrial automation, pneumatic modules, gas systems, and other OEM applications.
Ready to find the right BD-05TVB-S configuration for your project? Contact us at emily@dc-pump.com for model selection, sample testing, and OEM support.
