Precision Metering Pumps for Industrial Excellence

Shandong Lango Metering Pump Technology Co., Ltd is a leading manufacturer of Smart Digital Pumps, Solenoid Diaphragm Pumps, and Mechanical Diaphragm Pumps. Engineered for accuracy, durability, and global compliance.

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About Shandong Lango

Shandong Lango Metering Pump Technology Co., Ltd is a professional enterprise engaged in the research, development, production, and sales of metering pump products. Since our foundation in 2017, we have accumulated rich experience in the production of metering pumps using advanced technology.

Our pumps are widely applied in the water purification industry, sewage treatment, pharmaceuticals, chemicals, packaging, electroplating, and building refrigeration systems. We have developed a comprehensive range of solenoid metering pumps and are equipped with the most advanced BLDC motor control digital pumps.

40+

Countries Served

Years Experience

100%

Quality Focus

Our Product Range

High-precision, durable, and digitally enhanced metering pumps designed for industrial reliability and chemical compatibility.

EX Series Smart Digital Pump

✅ Manual & automatic flow control
✅ 3.5-inch color LCD display
✅ Materials: PVC, PVDF, SS316
✅ High-precision digital control

EH-E Series Solenoid Diaphragm Pump

✅ Compact electromagnetic design
✅ Max flow: 1.25 L/min
✅ Ideal for chemical dosing
✅ Corrosion-resistant materials

ET Series Solenoid Diaphragm Pump

✅ Digital solenoid-driven
✅ DC5-24V pulse signal control
✅ Manual & digital operation
✅ Low power consumption

Mechanical Diaphragm Pump

✅ Robust mechanical actuation
✅ High-pressure tolerance
✅ Long service life
✅ Suitable for viscous media

Pump Accessories

✅ Back pressure valves
✅ Dosing tubes & connectors
✅ Calibration cylinders
✅ Mounting kits & brackets

BLDC Digital Water Pump

✅ Brushless DC motor control
✅ Energy-efficient operation
✅ Smart speed regulation
✅ Quiet and reliable

Digital Control Systems

✅ Integrated pump controllers
✅ Remote monitoring capability
✅ RS485/Modbus communication
✅ IoT-ready for Industry 4.0

Custom Pump Solutions

✅ Tailored for specific media
✅ Custom flow rates & pressures
✅ Special material options
✅ OEM/ODM support available

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Industries We Serve

Our metering pumps are trusted across diverse sectors requiring precise chemical dosing and fluid control.

Water Purification

Accurate dosing of chlorine, coagulants, and pH adjusters in drinking water systems.

Sewage Treatment

Reliable chemical injection for wastewater neutralization and sludge treatment.

Pharmaceutical

High-purity pumps for sterile environments and precise formulation processes.

Chemical Industry

Corrosion-resistant pumps for aggressive acids, alkalis, and solvents.

Packaging

Precise metering in filling and sealing systems for food and industrial packaging.

Electroplating

Controlled dosing of plating solutions and additives for consistent metal deposition.

Refrigeration

Dosing of corrosion inhibitors and biocides in HVAC and chiller systems.

Environmental

Support for pollution control, flue gas treatment, and emission reduction systems.

Why Choose Langopump?

High Quality Pumps

We provide excellent quality metering pumps built with precision engineering and rigorous quality control. Our products meet international standards and are trusted by customers in over 40 countries.

First-Class Service

Our team offers responsive technical support, fast delivery, and customized solutions. We are committed to building long-term partnerships with our global clients.

Modern Techniques

Equipped with the most advanced BLDC motor control digital water pump technology, our products deliver superior efficiency, accuracy, and reliability in demanding environments.

Frequently Asked Questions

How do I clean a dosing metering pump?

Flush the pump with clean water for about 10 minutes, then flush for an additional 5 minutes with a mild cleaning solution if needed. Always follow manufacturer guidelines for maintenance.

What materials are used in your pumps?

We offer pump heads in PVC, PVDF, SS316, and other corrosion-resistant materials to suit various chemical compatibility requirements.

How do metering pumps achieve accurate dosing?

By adjusting the stroke length and stroke frequency, our pumps allow two-dimensional control of output for precise metering under varying pressure conditions.

Do you offer OEM/ODM services?

Yes, we welcome OEM and ODM collaborations. Our engineering team can customize pumps based on your specific application needs.

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