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Water Treatment Application AODD Pumps Water Treatment Application AODD Pumps

1 Inch New Aluminum Diaphragm Pump

ModelGK25 New Aluminum Diaphragm Pump
Max.Working Pressure 120psi (0.84Mpa, 8.4bar)
Max.Flow Rate 40 gpm (150 Ipm)
Max.Reciprocating Speed 276cpm
Max. Suction Height(Dry Sucking) 5m
Max.Permitted Grain 0.16in. (4mm)
Max.Air Consumption 45scfm (22.5L/s)
Air Inlet Size 1/2 in.
Air Outlet Size 3/4 in.
Fluid Inlet Size 1 in.
Fluid Outlet Size 1 in.
Weight 9.3kg

Product Description

What is a 1 inch diaphragm pump?

A diaphragm pump is a type of positive displacement pump that uses a flexible diaphragm to move fluid. The diaphragm is typically made of a durable material, such as rubber or thermoplastic, and is located inside the pump housing. When the diaphragm is pushed down, it creates a vacuum that draws fluid into the pump. When the diaphragm is released, it moves back up, pushing the fluid out of the pump and into the discharge pipe. 

Diaphragm pumps are commonly used in a wide range of industrial and commercial applications, including chemical processing, water treatment, and food and beverage production. They are often preferred for applications that require a pump with a gentle pumping action, such as pumping shear-sensitive fluids or transferring viscous fluids. Diaphragm pumps are also known for their ability to handle solids and abrasive materials without damaging the pump or causing clogs.

How do 1 inch diaphragm pumps work?

Diaphragm pumps work by using a flexible diaphragm to displace fluid. The pump has two chambers separated by the diaphragm. One chamber is the suction side, where fluid is drawn into the pump, and the other is the discharge side, where the fluid is pushed out of the pump. 

When the diaphragm is in its resting position, it blocks the flow of fluid from the suction side to the discharge side. When the pump is turned on, an external power source, such as an electric motor or air compressor, causes the diaphragm to move up and down. 

As the diaphragm moves down, it creates a vacuum in the suction chamber, causing fluid to flow into the pump. When the diaphragm moves up, it pressurizes the fluid in the discharge chamber, pushing it out of the pump and through the discharge pipe. 

The diaphragm's flexible nature allows it to move up and down without losing its seal, ensuring that the fluid is properly contained within the pump. The diaphragm also provides a gentle pumping action, making diaphragm pumps ideal for pumping shear-sensitive fluids, abrasive materials, or solids. 

Diaphragm pumps are versatile and can be powered by a variety of sources, including electricity, compressed air, and hydraulics.


There are several advantages to using a 1-inch diaphragm pump, including:

1. Versatility: 1-inch diaphragm pumps are highly versatile and can be used in a wide range of applications. They can handle fluids of varying viscosities, as well as abrasive and corrosive materials.

2. Efficiency: Diaphragm pumps are known for their high efficiency, which is due in part to their ability to maintain a constant flow rate, regardless of the pressure or viscosity of the fluid being pumped.

3. Self-priming: Diaphragm pumps are self-priming, which means they can start pumping fluids without the need for additional priming or external suction sources.

4. Durable: Diaphragm pumps are designed to be highly durable and long-lasting, even in demanding environments. They are built with rugged materials that can withstand exposure to harsh chemicals, extreme temperatures, and other challenging conditions.

5. Low maintenance: Diaphragm pumps require minimal maintenance, as they have few moving parts and do not require lubrication. This can help reduce downtime and maintenance costs over the long term.

6. Containment: Diaphragm pumps provide excellent containment, which means they are ideal for applications where spills or leaks could be hazardous to personnel or the environment.

Overall, 1-inch diaphragm pumps offer a reliable, efficient, and versatile solution for a wide range of industrial and commercial pumping needs.


1. Material: The body of the pump is made of aluminum, which makes it lightweight, corrosion-resistant, and durable. 
2. Capacity: The pump is designed to handle liquids with a maximum flow rate of 40 gallons per minute (GPM). 
3. Diaphragm: The diaphragm of the pump is made of nitrile rubber or other suitable material, which ensures a long service life and resists wear and tear. 
4. Self-priming: The pump is self-priming, which means it can lift liquid from a lower level and move it to a higher level without the need for external assistance. 
5. Sealless design: The pump has a sealless design, which reduces the risk of leakage and ensures that the liquid being pumped remains pure and uncontaminated. 
6. Versatile: The pump can be used to pump a variety of liquids, including water, oil, and some chemicals, making it ideal for a wide range of applications. 
7. Easy to maintain: The pump is designed to be easy to maintain and repair, with easy-to-access parts that can be quickly replaced if necessary. 
Overall, a 1 inch aluminum diaphragm pump is a versatile and reliable pumping solution that can handle a range of liquids and is suitable for a variety of applications.


Industries InvolvedApplications
Petrochemical IndustryCrude oil, heavy oil, grease, mud, sludge, etc.
Chemical InsdutryAcids, alkali, solvents, suspended solids, decentralized system
Wastewater TreatmentLime milk, Soft Sediments, Sewage, Chemicals, Wastewater
Electronic IndustrySolvents, electroplating fluid, cleaning fluid, sulfuric acid, nitric acid, waste acids, corrosive acids, polishing solutions / liquid
Nuclear Power IndustryPipeline system, nuclear station lubrication system and common island(CI) wastewater treatment
Automobile IndustryPolishing emulsions, oils, coolants, automotive priming, oil emulsion paints, varnishes, varnish additives, degreasers / degreasing fluid, paints, etc.
Pharmaceutical IndustrySolvents, acids, alkalis, plant extracts, ointments / cream, plasma and other pharmaceutical liquids
Ceramic IndustryMud, Slurry pottery, Lime milk, Clay Slurry
New Energy IndustryFluid transportation, sewage discharge, solid-liquid separation, etc.
Metallurgical, Casting and Dyeing IndustryMetal slurries, hydroxide and carbide slurries, dust washing slurries, etc.
Ink Industry / Painting Industry /Coating IndustryResins, Solvents, Colorants/Coloring Agent, Paints, etc.
Food and Beverage IndustryFood - Liquid semi-solid, chocolate, salt water / brine, vinegar, syrup, vegetable oil, soybean oil, honey, animal blood.
Beverage - Yeast, syrups, concentrates, gas-liquid mixtures, wines, fruit juices, corn pulp / corn steep liquor, etc.
Cosmetic IndustryDetergent, Shampoo, Lotion, Emulsion, camphor ice / Hand Cream, Surface active agent / Surfactant
Mining IndustryCoal slurry, magma, mud, mortar, explosive slurry, lubricating oil / lubricant, etc.
Paper IndustryBinder / adhesives, resin, paint, ink, pigment, hydrogen peroxide, etc.
Textile IndustryChemical dyes, resins, glues, etc.
Construction IndustryGrout, ceramic tile adhesive, rock slurry, ceiling paint, etc.
Furniture Industryadhesives, varnishes, decentralized system / dispersions, solvents, color agent / colorants, sapwood glue, epoxy resins, starch binders
Shipbuilding Industrywater, wastewater, Residual oil, brine
Electric Power IndustrySolvents, electroplating fluid, cleaning fluid, sulfuric acid, nitric acid, waste acids, corrosive acids, polishing solutions / liquid
Environmental Protection IndustryWastewater, Recycled water, Chemical solution (wastewater treatment)
Coal IndustryIt is responsible for spraying water during coal mining to remove dust and reduce the temperature of mining tools.
Biotechnology IndustryAcids, alkali, solvents, suspended solids, decentralized system

Welcome to choose our 1 inch diaphragm pump!

Welcome to GIN KAI TECHNOLOGY (SHANGHAI) CO., LTD (GK), your reliable partner for high-quality diaphragm pumps, including electric diaphragm pumps and piston pumps. Our product line includes a wide range of diaphragm pumps for sale, along with a comprehensive selection of diaphragm pump parts to meet all of your industrial and commercial needs.

One of our most popular products is the GK 1-inch stainless steel diaphragm pump, which offers exceptional performance and durability for a variety of applications. Featuring an up-down inlet and outlet, this diaphragm pump is highly versatile and can be used in a range of environments, from chemical plants to food and beverage production facilities.

Our 1-inch diaphragm pump is designed with high-quality materials and advanced technology to provide reliable, efficient performance. With its rugged stainless steel construction, this diaphragm pump is built to last, even in harsh conditions. And, with its compact size, it is the perfect solution for those looking for a small diaphragm pump that can easily be integrated into their existing systems.

At GK, we are committed to providing our customers with the best possible service and support. That's why we always include a silencer with every diaphragm pump for sale, helping to reduce noise levels and ensure a safe and comfortable working environment for your employees.

Whether you are looking for an electric diaphragm pump or a diaphragm pump for sale, GK has the products and expertise you need to get the job done right. Contact us today to learn more about our full range of diaphragm pumps and pump parts, and discover why we are the trusted choice for businesses across a wide range of industries.