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XP Series Disc Pump

This high performing piezoelectric disc pump offers the most power-efficient design and the widest operating temperature range. Combining silent operation, pulsation-free flow, millisecond response, and high precision in a compact form, these piezoelectric disc pumps provide accurate, ultra-smooth pressure and airflow control of gases. The XP Series Disc Pump can be mounted as a Smart Pump Module that includes integrated drive electronics and pressure sensing.

Key Product Facts
  • Free Flow:2.00 L/min
  • Stall Pressure / Vacuum:400 mbar / -300 mbar
  • Silent:<10 dB
  • Compact Form Factor:29 mm diameter / 5 g weight
  • Operating Temperature:-13°F to 131°F (-25°C to 55°C)

Product Information

General Specification
Characteristic Specification
Free Flow Rate 1.65 L/min
Pressure Range -200 mbar to 300 mbar
Silent1 <10 dB
Operating Temperature 41°F to 104°F (5°C to 40°C)
Control Precision2 Less Than 0.1%
Response Time Ultra-fast Millisecond Response
Turn-down Ratio3 Infinite
Recommended Filtration4 Less Than 3 μm
Compact Size 29 mm Diameter
Lightweight 5 g
Humidity Range5 0 to 95% RH
Pumping Medium6 Air
1Per ISO 226:2003 and related studies; 30 cm equivalent measurement distance.
2Pressure and flow: requires pump under closed-loop control with suitable sensor and drive electronics.
3The disc pump's piezoelectric drive actuator has no stall speed. The pump can be controlled continuously between 0 and 100% maximum output.
4The use of an inlet filter with a pore size of 3 μm or less is strongly recommended to prevent the ingress of particulates that might otherwise limit the lifetime of the pump.
5Non-condensing; ingress of liquid-phase water will halt pump operation.
6Liquid may be pumped indirectly in a pressure-driven flow or air displacement regime.
Polyarylamide Stainless steel
PET Acrylated urethane
Polyimide Gold
Nickel Lead zirconium titanium oxide
Aluminium Titanium
Silver Copper-Tungsten
Epoxy Nitrile

All disc pumps are RoHS compliant.

Electrical Operation
  • Typical driver requires 3.7 to 5 VDC power supply.
  • Pump requires AC drive waveform of 20-22 kHz. Pump drive voltage must not exceed 48 Vrms.
  • Power: 0 to 1 W (continuous)
  • Pump efficiency is application dependent.
  • Drive PCB and evaluation electronics are available.
  • Reference circuits and firmware are available to support product integration.
Performance Graph
Dimensional Views
Port Configuration & Mounting Details

Part Numbers & Specifications

This table below contains the part numbers and technical specifications for this product. If you have specific questions, need a quote, or would like to request a handbook or drawing, click the red request button in the column on the far right.

Part Numbers & Specifications
Part Number Configuration Operation Stall Pressure Free Flow Stall Vacuum Request Information
UXPB5401000A Series Intermittent1,3 400 mbar 0.75 L/min 300 mbar Request
Continuous2,3 310 mbar 0.65 L/min 250 mbar Request
UXPB5401200A Series Intermittent1,3 400 mbar 0.96 L/min 295 mbar Request
Continuous2,3 310 mbar 0.83 L/min 250 mbar Request
UXPB5400000A Parallel Intermittent1,3 250 mbar 1.35 L/min 200 mbar Request
Continuous2,3 190 mbar 1.10 L/min 140 mbar Request
UXPB5400200A Parallel Intermittent1,3 210 mbar 2.00 L/min 180 mbar Request
Continuous2,3 150 mbar 1.70 L/min 120 mbar Request
1Intermittent operation at 1.4 W drive power (into the pump). With intermittent operation, the mean power should be less than 1 W with a duty cycle period of less than 20 s. Operational life may be shortened when the mean pump drive power exceeds 1 W.
2Performance at 1 W measured after 30 s of continuous operation.
3Performance data presented was collected under normal temperature and pressure and ambient humidity conditions. Performance under other conditions may vary. In particular, note that performance decreases with altitude and may decrease at elevated temperature.

CAD Envelopes

CAD Envelope

Get Started

Everything you need to Get Started with our piezoelectric disc pumps can be found on this tab.

You can be up and running one of our disc pumps in a matter of minutes with the ‘plug and play’ functionality of our Evaluation Kits.

Alongside this, our extensive resources and literature – User Manuals and Application Notes – guide you from initial set-up, to using the disc pumps for in-situ applications. Our Frequently Asked Questions covers any further information you may need.

Piezoelectric Disc Pump Evaluation Kit

Our Evaluation Kit includes everything you need to start testing our piezoelectric disc pumps. The kit includes: pumps, electronics, and a PC application for configuration and control. Please note: kit contents will vary depending on the customer’s order.

  • No set up required: plug-and-play operation
  • Includes everything necessary to start testing: two pumps, electronics, PC app for configuration, control and data logging, fixtures, fittings, and design resources.
  • Versatile system suitable for laboratory testing, prototyping, and product development.
  • Create high performance products with exceptional pressure, vacuum, and flow capacity.
User Manuals

These User Manuals act as a primary resource for those starting out with the disc pumps. The manuals include safety information, signposting to other resources, and guidance for running and controlling the disc pumps.

Application Guides

These Application Guides provide practical guidance on how our disc pumps can be used across a variety of applications.


Technical Guides

These Technical Guides provide non-application specific instructions and advice on the disc pumps.

Software & Electronics

Software includes PC-based interface and code snippets for running and controlling the disc pumps. The Electronics Reference Design package contains PCB and firmware reference designs together with supporting technical guides. This provides everything necessary for customers to design their own drive electronics.

Smart Pump Module

The Smart Pump Module combines our piezoelectric disc pumps with drive electronics and pressure sensing in a tightly-integrated package.

  • Standalone pressure/vacuum regulation
  • Up to 600 mbar pressure, -400 mbar vacuum or 2 L/min flow depending on pump choice
  • Compact and lightweight (11 g)
  • Simple 5-wire interface for UART or I2C communication
  • Digital and analog control options available
Get in touch


From plugs to solenoid valves, there’s a vast array of products that The Lee Company can offer. If you’d like to discuss the best solution for your specific application or to learn more about our capabilities, use-cases, or quality standards, contact your local Lee sales engineer.