500ml PTFE sand core device with flange pressure resistant PTFE suction filter

500ml PTFE sand core device with flange pressure resistant PTFE suction filter

The PTFE sand core device usually consists of a PTFE sand core funnel and a PTFE filter bottle, and is widely used in industries such as new materials and energy, petrochemicals, and biopharmaceuticals to achieve solid-liquid separation.

The device uses polytetrafluoroethylene (PTFE) as the core material, combined with sand core filtration technology, to achieve efficient and safe filtration process.

The PTFE sand core device has corrosion resistance, can withstand strong acids and alkalis, aqua regia, magic acid and other organic solvents, and can almost withstand the influence of all corrosive media.

The material itself is processed and produced using high-purity PTFE material, which will not contaminate the sample and has a significant impact on analysis, testing, and high-precision experiments of food and drugs.

The special structure of the sand core increases the filtration area, accelerates the passage of liquids, and has a smooth surface that does not adhere to the sample, reducing the complexity of cleaning.

500ml PTFE sand core device with flange pressure resistant PTFE suction filter

Precautions

When filtering, first turn on the water pump, and then unplug the pipe before turning off the power to restore normal pressure and prevent backflow; Choose a sand core funnel and filter bottle of appropriate size

The use of cloth funnel

Before use, it is necessary to prepare filtration equipment such as vacuum pump, filtration bottle, Buchner funnel holder (sealing ring), vacuum tube (rubber tube), filter paper, Buchner funnel, etc. First, wet the filter paper with water and draw it to make it tightly against the bottom of the funnel, which can prevent anything to be filtered from leaking out. Pour in the filtrate, turn on the machine to extract, and stir slightly until only the filtered substance remains. Directly using a regular funnel, attaching filter paper, and then connecting an air pump for suction filtration (instead of a Buchner funnel) is not feasible. Because the walls of the funnel are tightly attached to the filter paper, negative pressure suction filtration does not work on it. Only the top corner of the funnel produces a pressure difference. Due to its large size and only one opening, it is easy to rupture. (Wet filter paper is not firm)