You Professional Diaphragm Pump Suppliers！
Yijia Hardware Industrial Supermarket, as an innovative leader in the industry, is committed to providing one-stop hardware procurement solutions for various industrial enterprises, construction projects, and DIY enthusiasts. Our large-scale 4,000-square-metre supermarket showcases more than 20,000 hardware products from world-renowned brands as well as high-quality local manufacturers.
-
![Single Diaphragm Pump]()
Single Diaphragm PumpPneumatic single diaphragm pump: uses compressed air as the power source. It is a positive displacement pump that changes volume due to the reciprocating deformation of the diaphragm.view more -
![Double Diaphragm Pump]()
Double Diaphragm PumpDouble diaphragm pumps usually use compressed air, nitrogen or natural gas as the power source.view more
Why Choose Us
Professional Team
We terms of service, we have a team of professionally trained staff who not only have deep knowledge of hardware products, but also can provide accurate product recommendations and technical support according to the specific needs of customers.
Diversified Demand
We From basic screws, nuts, tools and measuring tools, to high-end industrial equipment and electrical components, we have everything to meet the diverse needs of different customers at different project stages.
Convenient Shopping
We provide convenient online and offline shopping channels, the online platform is easy to operate, customers can browse and place orders anytime and anywhere.
Production Market
Yijia hardware has a wide range of mechanical and electrical sales, with footprints in Europe, America, Asia, Africa, Latin America and other countries.
A diaphragm pump is a positive displacement pump that uses a combination of the reciprocating action of a rubber, thermoplastic or teflon diaphragm and suitable valves on either side of the diaphragm to pump a fluid.
Types of Diaphragm Pump
Single Diaphragm Pump
Uses compressed air as the power source. It is a positive displacement pump that changes volume due to the reciprocating deformation of the diaphragm. Its working principle is similar to that of a plunger pump. Compressed air enters the pneumatic cavity, causing the diaphragm to move, the main spring to be compressed, the one-way valve to open, and the medium in the working cavity to be pressed out. Then the pneumatic valve core moves left to close the air inlet, the air is discharged, the pneumatic cavity is decompressed, the diaphragm is reset, and the next action cycle is entered. Such continuous reciprocating motion guides the medium to be sucked in and discharged.
Double Diaphragm Pump
Double diaphragm pumps usually use compressed air, nitrogen or natural gas as the power source. The main directional control valve distributes the power source gas to the gas chamber, applies uniform pressure to the inner surface of the diaphragm, and moves the diaphragm connecting rod back and forth. When one side of the diaphragm moves outward under the action of gas pressure, the other side of the diaphragm is pulled inward, and one side is discharged while the other side is sucked. The direction of discharge and suction of liquid is controlled by the check valve. The suction stroke reduces the pressure in the pump chamber and increases the volume, forming an atmospheric pressure differential, pushing the liquid through the suction pipe, through the suction side check valve, and into the external liquid chamber. This repeated movement completes the continuous delivery of the medium.
Product Specification
We offer the following Specifications：
|
Pump Type |
Double Diaphragm Pump |
|
Pump Style |
Diaphragm Pump |
|
Inlet Diameter |
2" |
|
Outlet Diameter |
2" |
|
Max Gallon Per Min (GPM) (See Pump Curve For Your Duty Point Estimates) |
190.0 |
|
Max Total Head (Static) |
276 Feet @ 120 PSI Pressure Inlet/Outlet PSIG |
|
Max Air Pressure (PSI) |
120 |
|
Max Suction Lift (Dry, @ Sea Level) |
24 Feet |
|
Max Suction Lift (Wet, @ Sea Level) |
32 Feet |
|
Max Suction Lift (Dry, If W/PTFE, @ Sea Level) |
19 Feet |
|
Solids Handling |
Yes |
|
Max Solids Handling (Inches) |
0.25" |
|
Self Priming Pump |
Yes, Dry Prime |
|
Valve Type |
Ball |
|
Air Inlet Size |
0.75" |
|
Air Section Material |
Aluminum |
|
Fluid Chamber Material |
Aluminum |
|
Inner Chamber (Air Section) Material |
Aluminum |
|
Diaphragm Material (Elastomer) |
Santoprene (TPE Curve) |
|
Ball-Valve Material |
Santoprene |
|
Valve Seat Material |
Polypropylene |
|
O-Ring Material |
EPDM |
|
Pump Hardware Material |
Zinc Plated Steel |
|
Port Type(s) |
NPT |
|
Fluid Porting |
Suction Center Front-Discharge Center Rear |
|
Max Temp Of Elastomers |
180 F |
|
Altitude Affected |
Yes |
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.
Components of Diaphragm Pump
A diaphragm pump is composed of relatively few main parts, these are:
Non-return valves (suction and discharge)
Pumping chamber
Diaphragm
Suction manifold
Discharge manifold
Chemical Processing:
In the chemical industry, air diaphragm pumps are extensively used for transferring aggressive chemicals, acids, solvents, and other hazardous materials. Their ability to handle corrosive fluids and operate safely in explosive atmospheres makes them indispensable in chemical plants.
Wastewater Treatment:
In wastewater treatment facilities, diaphragm pumps are used to handle sludge, slurries, and other high-solid-content fluids. Their robust design allows them to operate efficiently in these challenging conditions, ensuring reliable performance and minimal downtime.
Mining and Construction:
In mining and construction, air diaphragm pumps are used for dewatering, transferring abrasive slurries, and pumping concrete. Their ability to handle abrasive materials without significant wear and tear makes them ideal for these demanding applications.
Food and Beverage:
In food processing, air diaphragm pumps are used to transfer ingredients such as sauces, syrups, and dairy products, where gentle handling is required to prevent product degradation. The use of hygienic materials and designs ensures that these pumps meet strict food safety standards, preventing contamination and providing the highest levels of product quality.
Pharmaceuticals:
In the pharmaceutical industry, diaphragm pumps are used to transfer delicate fluids, including solvents and suspensions. Their hygienic design and ability to prevent cross-contamination make them essential in pharmaceutical production processes. Air diaphragm pumps are often used in applications such as sterile fluid transfer, where the pump’s ability to operate without generating heat or contamination is critical.
Packaging & Shipping
FAQ
As one of the leading diaphragm pump suppliers in China, we warmly welcome you to wholesale diaphragm pump made in China here from our factory. All customized tools are with high quality and competitive price. Contact us for free sample.
Single Diaphragm Pump
