[csrscience.com]

WWW.CSRSCIENCE.COM hosts picture tutorials and other information related to our products to aid customers and increase page views and sales. These tutorials include things like proper laboratory technique, edible mushroom growing guides, and many other procedures. They can by found at our Other Pages link.

Since our work load is increasing and making it hard to post as many tutorials as we would like, we are giving anyone a 10% discount (or $5.00 in-store credit) for submitting a unique, detailed tutorial or quality guide with pictures of anything science related. Almost anything is wanted if it relates to science or our products. We would love to see guides that help others perform distillations, make plant tissue cultures, spore prints, isolate strains, or even make fume hoods or laminar flow hoods,and especially anything that shows amateur scientists can contribute to the knowledge base of science.

CSR Science is a small web based business that specializes in products that play an important part in the biological or chemical laboratory. We welcome service to amateur scientists, hobbyists, and experimentalists. Currently we are providing products for mushroom cultivation, some lab materials and surplus (on ebay, occasionally). However, our aim is to grow into a supplier of nearly all materials used in the laboratory, such as offering a wide selection of chemicals, glassware, stirrers, heaters, and so much more.

Thank you for taking an interest in CSR Science, please browse our store, and do not hesitate to contact us.

[csrscience.com]

A H-12020 Humboldt Aspirator filter pump connected to a Humboldt H-12155 garden-hose to 3/8 NPT adapter fitting for only $24.00 + shipping --- we ship anywhere in the world. Or just the aspirator for $17.95 or adapter for $6.95

One Humboldt Filter Pump Aspirator

This aspirator is also known as an eductor-jet pump, Injector/Ejector, Filter pump, water-jet pump or a Venturi pump. They are used for vacuum generation and suction.

Humboldt Aspirator Filter Pumps offer excellent performance for vacuum filtration under both high and low water pressure conditions. They also find use for vacuum distillation and dessication as it significantly lowers the boiling point and sublimation temperatures of substances. The pumps feature a ball-type, positive-action valve in the suction tube which aids in preventing water backflow if the pressure is reduced.

This H-12020 Chapman, Swirling-Type, Nickel-plated aspirator is designed for greater air entrainment capacity, the water inlet has 3/8" NPT tapered threads. The length of this aspirator is 5-3/8" or 137mm. The nozzle and end part of the suction tube are aluminum, while the body is composed of a chrome plated and chemical resistant metal. The vacuum inlet has a small hole preventing the inner workings of the aspirator from being clogged by large materials that may get sucked up.

If 25 °C (77 °F) water is used the aspirator is able to pull a vacuum of 3.2 kPa which is 0.46 psi or 32 mbar. If the water used it colder than 25 °C, it can pull an even stronger vacuum. Generally when in use it can easily boil water at room temperature.