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1/2 Inch Aluminum Diaphragm Pump

ModelGK15 Aluminum Diaphragm Pump
Max.Working Pressure 100psi (0.7Mpa, 7bar)
Max.Flow Rate 15 gpm (57 Ipm)
Max.Reciprocating Speed 400cpm
Max. Suction Height(Dry Sucking) 4.5m
Max.Permitted Grain 3/32 in. (2.5mm)
Max.Air Consumption 20scfm (10L/s)
Air Inlet Size 1/4 in.
Air Outlet Size 3/8 in.
Fluid Inlet Size 1/2, 3/4 in.
Fluid Outlet Size 1/2, 3/4 in.
Weight Aluminum pump 4.5kg

Product Description

1/2 Inch Diaphragm Pump: Everything You Need to Know


When it comes to fluid transfer and pumping applications, having the right equipment is essential. One such versatile tool is the 1/2 inch diaphragm pump. This compact and powerful device is designed to handle various fluids and perform in demanding environments. In this comprehensive guide, we will explore the features, applications, benefits, and maintenance of the 1/2 inch diaphragm pump. Whether you're a professional in the industry or a DIY enthusiast, this article will provide you with all the information you need to know about this remarkable pump.

1/2 Inch Diaphragm Pump: An Overview

A 1/2 inch diaphragm pump is a type of positive displacement pump that utilizes a flexible diaphragm to create suction and discharge pressure. The diaphragm, typically made of durable materials like rubber or thermoplastic, moves back and forth, drawing in fluid through the inlet and then forcing it out through the outlet. The 1/2 inch designation refers to the diameter of the pump's internal passages, which affects its flow capacity and pressure capabilities.


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

Benefits of Using a 1/2 Inch Diaphragm Pump

1. Self-Priming Capability: 

The self-priming feature of the 1/2 inch diaphragm pump enables it to draw fluid from a lower level, eliminating the need for external priming. This capability saves time and effort during setup and ensures efficient operation.

2. Ability to Handle Solids: 

Unlike many other types of pumps, the 1/2 inch diaphragm pump can handle fluids containing solids. The flexible diaphragm can pass small debris, preventing clogging and reducing the risk of damage.

3. Versatility: 

The 1/2 inch diaphragm pump's versatility allows it to handle a wide range of fluids, including corrosive chemicals, abrasive slurries, and high-viscosity substances. This adaptability makes it a valuable tool in various industries.

4. Dry-Running Capability: 

The design of the 1/2 inch diaphragm pump allows it to run dry without damage. This feature is particularly useful in applications where fluid supply may be intermittent or unpredictable.

Portability: 1/2 inch diaphragm pumps are often compact and lightweight, making them highly portable. This portability enables easy transportation and deployment, even in remote or hard-to-reach locations.

Maintenance and Care for 1/2 Inch Diaphragm Pump

Proper maintenance and care are essential to ensure the longevity and reliable performance of the 1/2 inch diaphragm pump. Here are some tips to keep your pump in optimal condition:

1. Regular Inspection: 

Perform routine visual inspections to check for any signs of wear, leaks, or damage. Inspect the diaphragm, valves, and seals for cracks or degradation.

2. Cleaning and Flushing: 

Clean the pump after each use to remove any debris or residue that could hinder its operation. Flushing the pump with clean water can help eliminate any remaining particles or chemicals.

3. Diaphragm Replacement: 

Diaphragms are subject to wear and tear over time. Replace the diaphragm according to the manufacturer's recommended schedule or if you notice a decrease in performance or leaks.

4. Lubrication: 

Some 1/2 inch diaphragm pumps require lubrication for smooth operation. Refer to the pump's manual to determine the appropriate lubrication method and schedule.

5. Storage: 

When not in use, store the pump in a clean and dry environment. Protect it from extreme temperatures and ensure it is properly covered to prevent dust and debris from entering.

Discover the Versatility and Reliability of the GK80 Stainless Steel 1/2 Inch Diaphragm Pump


When it comes to fluid transfer solutions, GIN KAI TECHNOLOGY (SHANGHAI) CO., LTD (GK) stands out as a leading manufacturer specializing in air-operated diaphragm pumps, electric diaphragm pumps, and piston pumps. Among their impressive range of products, the GK80 Stainless Steel 1/2 Inch Diaphragm Pump truly shines. Combining robust construction, exceptional performance, and a host of advanced features, this diaphragm pump is a reliable choice for a wide range of applications. In this product pitch, we will explore the key advantages and features of the GK80 Stainless Steel 1/2 Inch Diaphragm Pump, highlighting why it is the perfect solution for your fluid transfer needs.

Superior Design and Construction

The GK80 Stainless Steel 1/2 Inch Diaphragm Pump is meticulously engineered to deliver reliable and efficient performance in demanding environments. With its up-down inlet and outlet design, this pump ensures smooth and uninterrupted fluid flow, minimizing the risk of clogging or blockages. The stainless steel construction of the pump offers excellent resistance to corrosion, making it suitable for handling even the most aggressive fluids. Whether you are dealing with chemicals, solvents, or abrasive liquids, the GK80 Stainless Steel 1/2 Inch Diaphragm Pump is built to withstand the toughest conditions.

Enhanced Noise Reduction

At GK, we understand the importance of workplace safety and comfort. That's why every GK80 Stainless Steel 1/2 Inch Diaphragm Pump is equipped with a specially designed silencer. This feature effectively reduces noise levels during operation, creating a quieter working environment and ensuring a more pleasant experience for your employees. By investing in a GK80 pump, you not only benefit from its exceptional performance but also prioritize the well-being of your workforce.

Versatile Applications

The GK80 Stainless Steel 1/2 Inch Diaphragm Pump offers impressive versatility, making it suitable for a wide range of industries and applications. Whether you are in the chemical, pharmaceutical, food and beverage, mining, or wastewater treatment industry, this pump can handle your fluid transfer requirements with ease. Its robust construction, chemical compatibility, and ability to handle various viscosities and solids make it an ideal choice for pumping fluids of different natures.

Easy Installation and Operation

GK prioritizes user-friendly design, and the GK80 Stainless Steel 1/2 Inch Diaphragm Pump is no exception. It features a compact and lightweight design, allowing for easy installation and convenient portability. The pump is equipped with user-friendly controls and connections, enabling quick and hassle-free setup. Once installed, the pump operates smoothly and reliably, requiring minimal maintenance. This ensures maximum uptime and productivity for your operations.

Exceptional Performance

The GK80 Stainless Steel 1/2 Inch Diaphragm Pump delivers exceptional performance in terms of both flow rate and pressure capabilities. With its optimal design, it achieves high flow rates, allowing for efficient fluid transfer. Additionally, the pump is designed to handle a wide range of pressures, providing flexibility for various applications. Whether you need to transfer fluids over short distances or pump them through long pipelines, the GK80 Stainless Steel 1/2 Inch Diaphragm Pump delivers consistent and reliable performance.


In summary, the GK80 Stainless Steel 1/2 Inch Diaphragm Pump offered by GIN KAI TECHNOLOGY (SHANGHAI) CO., LTD (GK) is an outstanding choice for your fluid transfer needs. With its superior design, corrosion-resistant construction, enhanced noise reduction, versatile applications, easy installation, and exceptional performance, this diaphragm pump stands as a reliable and efficient solution. 

Trust in GK's expertise and experience in the industry to provide you with a high-quality product that will meet and exceed your expectations. To learn more about the GK80 Stainless Steel 1/2 Inch Diaphragm Pump and explore our full range of fluid transfer solutions, visit our website or contact us today!