Diaphragm Pump
Your Leading Diaphragm Pump Supplier
Suzhou Asenhe Environmental Protection Technology Co., Ltd., established in January 2011, is a leading technology manufacturer deeply engaged in the environmental protection field. Adhering to the core principles of "innovation-driven, quality-oriented," the company specializes in the research, development, and manufacturing of high-performance environmental monitoring equipment.
After years of development, Asenhe has established a comprehensive product portfolio. Its core products include ocean buoys, navigation buoys, solar buoys, wave buoys, wave sensors, metering pumps, positive displacement pumps, and pneumatic diaphragm pumps. These products are widely used in fields such as ocean monitoring, water conservancy and hydrology, meteorological observation, environmental protection engineering, and industrial automation. Their stable and reliable performance has earned them the trust and praise of domestic and international customers.
The company is driven by technological innovation, continuously increasing R&D investment and actively introducing advanced design concepts and process equipment. Currently, Asenhe is accelerating the development of new intelligent and networked monitoring equipment, striving to provide customers with more accurate, durable, and intelligent solutions to meet increasingly complex environmental monitoring needs.
In the future, Suzhou Asenhe Environmental Protection Technology Co., Ltd. will continue to adhere to the principle of "quality first, service first", promote the continuous upgrading and breakthrough of environmental monitoring technology, and strive to become a leading enterprise with international competitiveness in the industry, and contribute to the protection of the global ecological environment.
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why choose us
Products applicaion
Our products have been widely used in key areas such as sewage treatment, water quality monitoring, marine environment monitoring, marine resource development and protection, and navigation warning, providing strong support for environmental
governance and safety
assurance.
Production equipment
The company currently has 3 sets of buoy molds and 15 sets of dosage pump and diaphragm pump molds; it is equipped with 3 machining centers and 5 equipment including grinders, milling machines, lathes, etc.; it also has 4 monitoring equipment and platform testing equipment and other complete testing and processing equipment.
Our certifications
The company has successfully passed ISO quality management system certification and CE certification, which not only
strictly guarantees the high quality of products, but also highlights
Asenhe's competitiveness and
reputation in the international
market.
Production market
The company has established a nationwide sales and service network to ensure
that customer needs are responded to
in the first time and that on-site problems
are handled promptly with
professional and efficient
solutions.
Types of Diaphragm Pump




Mechanically driven diaphragm pumps: These pumps have a motor or engine.They lare mechanically driven. A mechanical linkage moves the diaphragm back and forth to pump fluid.
Pneumatic diaphragm pumps (AoDD): These pumps use compressed air to move the diaphragm. They are helpful in hazardous areas. They need no electricity and minimize the risk of ignition.
Hydraulically operated diaphragm pumps: Hydraulically Operated Diaphragm Pumps utilize fluid pressure to oscillate the diaphragm. This type is suitable for applications requiring high discharge pressures.
Single diaphragm pumps: These pumps use one diaphragm to draw in and expel fluid.They are used for moderate fluid transport applications.
Double diaphragm pumps: Double-acting diaphragm pumps use two diaphragm pumps. They are for high-pressure,large-volume fluid transport in industry. They are ideal for industrial manufacturing and oil and gas exploration.
Manual diaphragm pumps: These are simple, easy-to-use manual pumps. They are portable, cost-effective, and suitable for locations with limited electrical resources.
Handle-operated diaphragm pumps: These pumps use a lever or handle. They are manually controlled. They suit applications without electrical or air power.
The Advantages of Diaphragm Pumps
High gas-tightness: Using a diaphragm provides a high level of gas-tight operation. To reduce the risk of leakage further, diaphragm pumps can be equipped with a back-up diaphragm. If the primary diaphragm becomes damaged, the additional diaphragm’s closed surface safeguards against potentially hazardous gas leaks.
Low maintenance construction: Diaphragm pumps are designed for long-lasting durability and therefore have a low maintenance requirement. They have the potential to be maintenance-free and contain few moving parts, reducing the risk of wear and tear.
Oil-free operation: As all pump parts in contact with the media are strictly separated from the drive, oil cannot pollute the media. This makes diaphragm pumps ideal for all applications that require the utmost cleanliness.
Chemical resistance: Only very few parts of the diaphragm pump come in contact with the media, and all of them can be chosen from a wide range of different materials to ensure compatibility.
Compact design: Their robust, compact design makes diaphragm pumps ideal for use in tight spaces or where floor space is limited. They are also lightweight, portable and can be mounted in any direction, providing additional flexibility.
Dry-run safe: Diaphragm pumps used to transfer liquids are dry-run safe and can continue operating for long periods without damaging any components.
Self-priming functions: The pump’s design allows it to generate pressure and self-prime without any start-up procedure or manual priming.
Advanced motor types: Diaphragm pumps can be equipped with advanced brushless DC (BLDC) motors for greater controllability. They can also be digitally customized for specific application requirements.
Application of Diaphragm Pump
Diaphragm pumps in water treatment
Diaphragm pumps are employed in waste water systems for pumping and transferring various types of waste, including sewage, sludge, and effluent. They can handle solids and semi-solids, making them suitable for such applications.
Diaphragm pumps in the chemical industry
Diaphragm pumps are extensively used in the chemical industry for handling and transferring chemicals, acids, solvents, and other aggressive substances. Their ability to resist corrosion makes them suitable for such applications.
Diaphragm pumps in the pharmaceutical industry
Accurate fluid transfer is important in pharmaceutical production. Diaphragm pumps contribute to the safe and precise transfer of solvents, acids, bases and other pharmaceutical ingredients. They are used in all stages of pharmaceutical production and formulation.
Food and beverage industry
They are typically used to pump liquids such as juices, sauces, dairy products and liquid ingredients, while maintaining hygiene and avoiding contamination.
Mining and construction
Diaphragm pumps are used in mining and construction sites for dewatering excavations, pumping mud and slurry, and pumping abrasive materials such as sludge and silt.
Agriculture and irrigation
Diaphragm pumps are used in agriculture for tasks such as crop spraying, irrigation, and transporting water and fertilizers. They are often selected for their self-priming ability and their ability to convey dirt and small solids.
Automotive and manufacturing
Diaphragm pumps are used in the automotive and manufacturing industries for fluid transfer, lubrication systems, coolant circulation, and other processes requiring precise and controlled fluid delivery.
Environmental monitoring
Diaphragm pumps can be used in environmental monitoring applications to collect and transport samples to test facilities and then use air samplers and water quality analyzers.
Medical and laboratory applications
Diaphragm pumps are used in medical equipment, laboratories and research facilities for fluid handling, vacuum generation and filtration processes.
Fluid transfer
Diaphragm pumps are typically used to transfer liquids and gases from one location to another. They can transfer a variety of fluids, including corrosive, abrasive, viscous, and volatile.
Product Specifications
|
Model number (Asenhe |
Maximum traffic (L/min) |
Max Yang Cheng (M) |
Maximum suction (M) |
Maximum grain straight Diameter (Mm) |
Maximum pressure (KG) |
Inlet and outlet diameter (In) |
Material |
|||
|
|
Overflow material |
Aluminum alloy, PP, TF, 304 PM Polynail Aldehyde), CS(cast steel) |
||||||||
|
AS15 |
57 |
84 |
Dry wet |
4 7.6 |
2.5 |
8.4 |
Into the |
1/2 |
||
|
The |
3/4 |
|||||||||
|
AS25 |
157 |
84 |
Dry |
4 |
4 |
8.4 |
Into the |
1 |
||
|
Wet |
8 |
The |
1 |
|||||||
|
AS40 |
358 |
84 |
Dry wet |
5 8 |
5 |
8.4 |
In and out |
1.5 |
||
|
1.5 |
||||||||||
|
AS50 |
587 |
84 |
Dry |
5 |
6 |
8.4 |
Into the |
2 |
Diaphragm |
TF, EP(three Yuan ethylene C), GE(wear-resistant rubber) |
|
Wet |
8 |
The |
2 |
Intermediates |
Aluminum alloy, PP, 304 |
|||||
|
AS80 |
1060 |
84 |
Dry |
5 |
9.4 |
8.4 |
Into the |
3 |
Valve ball |
TF, EP(three yuan ethylene-C), GE(wear-resistant rubber), 304 ceramic |
|
Wet |
8 |
The |
3 |
Valve seat |
TF, EP(3 yuan ethylene-C), GE(wear-resistant |
|||||
When it comes to packaging, we always adhere to the principle of "safety first, details paramount." We meticulously design and customize packaging solutions for different pump models based on their size, weight, exterior structure, and quantity. Durable wooden boxes or high-strength cartons are typically used for exterior protection, while high-density foam, sponge, or shock-absorbing materials are filled inside to create a comprehensive cushioning layer, effectively reducing the risk of vibration, impact, and crushing during transportation.
For pumps with precision components or specialized structures, we also implement additional support and protection measures, such as customized linings, fixed slots, or partitioned isolation, to ensure the equipment remains stable and secure during long-distance transportation, multiple handling, and complex climates.
This scientific and rational packaging approach not only minimizes transportation losses but also ensures that every pump reaches our customers intact and in optimal condition. This demonstrates our commitment to product quality and customer experience.


This industry
The company boasts an efficient production system, equipped with one or two specialized production lines, with an annual production capacity of up to 4,000 sets of buoys and supporting equipment. This not only ensures the timely delivery of large-volume orders, but also provides flexible production support for personalized, small-batch customization.
The production lines are rationally laid out and highly automated, effectively improving manufacturing efficiency and product consistency. At the same time, the company strictly implements its quality management system, maintaining high standards of craftsmanship and quality control while undertaking large-scale production, ensuring that each product meets international standards and customer needs.
With its stable production capacity and flexible production capabilities, Asenhe boasts significant advantages in delivery speed, cost control, and reliability, providing customers with continuous and stable supply guarantees.
vision of the future
We are committed to becoming a world-leading environmental monitoring and intelligent equipment manufacturer, promoting ecological environmental protection and sustainable development with innovative technologies and high-quality products.
mission
Focused on developing and manufacturing high-quality environmental monitoring equipment, providing reliable
data and solutions for marine,
meteorology, water,
environmental, and industrial
applications.
system of values
We adhere to the principles of quality first, customer orientation, continuous innovation and win-win responsibility, and are
committed to providing reliable
products, professional services
and promoting sustainable
development.
company philosophy
With "innovation, quality, service and win-win" as the core concept, we build an
international brand, create value for customers, set a benchmark for
the industry, and contribute to
environmental
protection.
We accept customized services
We offer flexible customization for both buoy and pump products, tailoring configurations and features to each client’s specific needs to ensure optimal performance and reliability in every application.

User Evaluation

Asenhe's pumps are of very stable quality, and their customized services are very tailored to our needs. With timely delivery and quick after-sales response, our project runs very smoothly.
BYD Company

We are impressed with the high quality and reliability of AsenHe’s buoy products. Their customization options perfectly meet our project requirements, and the team provides excellent support.
Sarah Johnson
Contractor

During the cooperation, Asenhe provided flexible customized solutions to meet our monitoring needs in complex marine environments. The products are durable and reliable, greatly improving work efficiency.
Nguyen Van Hoang
Contractor

The buoys and pumps from AsenHe perform consistently well in challenging conditions. The team’s professional guidance and fast response make them a trusted partner for our environmental monitoring projects.
Rajesh Kumar
Contractor
1124
Solutions
1869
Projects complated
259+
Satisfied clients
15+Years
Expertise & Experience
FAQ
We're professional diaphragm pump manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to wholesale high-grade diaphragm pump made in China here from our factory.
1 inch pneumatic diaphragm pump, Pneumatic Diaphragm Pump, PP material diaphragm pump
