Every year, the world needs to produce and manufacture many chemicals to meet the development needs of society. Because of the particularity of chemicals, many different product combinations are needed in the production and manufacturing process to meet the production needs, including pumping equipment. AODD (Air Operated Double Diaphragm Pump) is an ideal choice for handling many chemicals because of its safe and effective pumping process. For more than 50 years, SANDPIPER has been committed to the R&D and manufacturing of AODD pumps, constantly innovating, and supplying a full range of multi pump and high-efficient AODD pumps to meet the widespread market demand around the world. Main factors to be considered when selecting chemical pumps Before selecting chemical pumps, we need to have a clear understanding of the use requirements and chemical medium characteristics, as well as the functions, dimensions and specifications of pumps.

First, chemical compatibility should be considered when selecting pumps. The construction material of the pump must be compatible with the chemical medium. Because corrosion is the main feature of many chemicals, it is very important to select the pump made of materials compatible with chemical media. Secondly, two major types of pump structural materials need to be considered: metal: wear-resistant and used, suitable for abrasive and slurry, including 316 stainless steel, Hastelloy C, aluminum, cast iron and other non-metallic materials; solid but light design provides a wide range of chemical compatibility, including polypropylene, acetal, conductive polypropylene, conductive acetal, conductive PVDF, PVDF, Kynar, nylon and so on, Confirm the pump scale according to the operating parameters. It is necessary to match the flow and pressure of the pump with the flow and pressure required by the process. When selecting a pump, the pump flow is another important factor to consider.

Why choose AODD pump? There are many pumps used in the chemical industry on the market, including centrifugal pumps, metering pumps, cam pumps Gear pump 、 Screw pump , hose pump and piston/plunger pump. It is often difficult for people to make the right choice to find a completely suitable pump. However, AODD pumps have proven their market position in terms of reliability, versatility and ease of protection. The following are some unique advantages of AODD pumps: versatility: the import and export dimensions of AODD pumps are usually ¼” Between (6 mm) and 3 "(80 mm), the maximum pump weight is only 245 lbs (111 kg). They can operate anywhere, and the function curve is simply adjusted with the air inlet pressure (0 to maximum). No need to plug in: AODD pump can be completely grounded, safe and reliable operation. Certified types (such as ATEX or UL) ensure safety when properly grounded. Excellent chemical compatibility: AODD pump can be made of components made of stainless steel, alloy C, cast iron, aluminum, polypropylene, polyvinylidene fluoride and acetal. It can touch FKM, PTFE, EPDM, Santoprene and NBR materials, and you can choose a suitable material to meet your chemical transportation needs.  

Wide viscosity range: AODD pump can handle almost any fluid, with a flow rate of up to 90000 cst (415500 ssu), and can be specially customized to meet a wider range of needs. Free running and fear of pipeline blockage: many other pumping technologies require special control or circulation loops to prevent pipeline blockage. AODD pump is a good pumping choice for intermittent use and frequent idle operation. When the discharge pressure is equal to the inlet pressure, the pump will automatically stop working without damage. SANDPIPER Chemical Pump is one of the pneumatic diaphragm pump brands under WARREN Rupp Inc. SANDPIPER has provided high-quality pneumatic diaphragm pumps for various industries with more than 50 years of production experience. It has not only developed a number of unique pump products, but also has a complete product line, wide coverage and flexible product portfolio, Keep up with customers' needs to satisfy the changing market use. Subway has adopted a unique online maintenance gas distribution system (ESADS+PLUS) with a wrench. After removing four bolts, the one-way valve and main gas valve can be inspected and protected online in five minutes, without dismantling the pipeline, let alone the pump, so as to ensure less maintenance time and significantly save operating costs.

Features and advantages: It can transport fluids containing solid particles, shear sensitive media, corrosive or abrasive fluids, and has strong self-priming capacity, low dry running gas consumption, energy saving and consumption reduction without fear of pipeline blockage, no need for pipeline protection, self adjustment of equipment flow and head, no need for messy electronic control equipment, no need for power supply, pneumatic drive, safe and reliable without mechanical or packing seal, Very low protection cost, smooth operation, no dead point, can be installed underwater or immersed, and various safety certifications are complete