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Storing liquids in tanks is essential for many process industry applications, for example chemicals for finishing and surface treatment applications, as is the need to agitate the contents to avoid separation and sedimentation. Fluids can be recirculated through tanks to achieve separation which helps to optimise chemical action in dip tanks, although the process can be enhanced by the introduction of eductor nozzles.

For many applications eductor nozzles made from brass or stainless steel (as opposed to plastics such as polypropylene) will be the preferred choice, especially if the chemicals are aggressive, or are stored at higher temperatures. However, the new range of PVDF eductorsrecently introduced by Beteare a viable alternative to the more expensive stainless models. PVDF (Kynar) is an incredibly chemically resistant fluoroplastic and has superior heat resistance compared too many other plastics. Furthermore, these new PVDF options are offered at significantly lower cost than stainless steel equivalents.

Eductors are submerged inside the tank and the motive liquid is pumped under pressure though the discharge orifice. The jet of liquid enters the venturi section, entraining additional liquid from the tank and moving it through the venturi. A discharge plume of combined motive and entrained liquid exits the venturi and continues the mixing and agitating action for a substantial distance effectively multiplying the liquid flow. Depending on the model and the operating pressure, the volume of liquid discharged from the eductor will be up to four or five times greater than the volume of motive liquid being pumped. This highly efficient operation reduces energy use and therefore cuts costs.

Eductors can be used effectively wherever chemicals are being stored inside closed tanks yet need to be agitated.

For example: in tanks used for plating, electrocoating and pre-treatment, phosphating, sludge, paint, anodizing, agricultural fertilizers and chemicals, pulp, slurries. There are also options for open tank applications, such as cooking grain, mash and starch, heating, as well as circulating and mixing.

THE SPRAY NOZZLE PEOPLE (SNP)

The Go-to People for spray nozzle solutions

SNP’s aim is to reduce hassle for its customers  when sourcing spray nozzles and systems. The company recognises that components such as spray nozzles probably form only a small part of a client’s project or process. Yet, sourcing the right spray component or solution can be time consuming (and mistakes can prove costly). SNP’s expert sales engineers are skilled in working with customers to get them the best solutions, delivering in-depth technical and application support backed by market-leading products. Typical areas the company advises on include: achieving the optimum drop size for an application, spray coverage flow rates, how different fluids affect spray characteristics and how gas flows will affect spray patterns.

The Go-to People for spray nozzle solutions

SNP’s aim is to reduce hassle for its customers  when sourcing spray nozzles and systems. The company recognises that components such as spray nozzles probably form only a small part of a client’s project or process. Yet, sourcing the right spray component or solution can be time consuming (and mistakes can prove costly). SNP’s expert sales engineers are skilled in working with customers to get them the best solutions, delivering in-depth technical and application support backed by market-leading products. Typical areas the company advises on include: achieving the optimum drop size for an application, spray coverage flow rates, how different fluids affect spray characteristics and how gas flows will affect spray patterns.

SNP supplies spray nozzle solutions to industries worldwide, including the largest engineering, food processing, chemical and petrochemical companies, as well as a vast array of small and medium sized enterprises (SMEs). The company’s product range includes tank washing nozzles, hydraulic nozzles, air atomising nozzles, custom piping assemblies and spray accessories as well as disinfecting and washdown systems.

SNP is as skilled in advising design engineers at the beginning of projects as it is recommending and supplying replacement products that may be needed in a hurry. The company can also provide innovative custom solutions, including using non-standard materials. SNP holds ISO 9001 certification.

SNP is an exclusive distributor for US spray nozzle manufacturer BETE, for  pre-treatment specialist Uni-Spray, specialist paper industry nozzle manufacturer ML Gatewood and tank cleaning systems manufacturer Dasic. In addition, the company suppliers specialist washdown and disinfecting equipment from Lafferty Equipment and Guarany. Orders are handled quickly and efficiently from the company’s dedicated stock-holding facilities.

www.spray-nozzle.co.uk

01273 400092

SNP is part of the Spray People Group (SPG) which supplies a range of specialist products and components to industry. Group companies include the Air Nozzle People (ANP), the Safety Shower People (SSP), the Professional Sprayers People (PSP) and the group’s own fulfilment house The Fulfilment People (TFP).

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