can we use air to pump Highly flammable solvent using pneumatic pump?

Question

The solvent such as Toluene, Isopropyl Ether, Ethyl Acetate are pumped from 200 liters drum to 35 liters container for laboratory use.

Answer 1

You can use air actuated pump like diaphragm pumps having PTFE DIAPHRAGMS.

ALSO, you can use "acid egg " arrangment to transfer the fluid by pressurised air without any mechanical component.

We ARE using such type of system for highly corrosive media.

Another option is to transfer the fluid by gravity (you have not mentioned the pressure.)

Answer 2

Any equipment employing pneumatics uses an interconnecting set of components: a pneumatic circuit consisting of active components such as gas compressor, transition lines, air tanks, hoses, open atmosphere, and passive components. Compressed air is supplied by the compressor and is transmitted through a series of hoses. Air flows are regulated by valves and the pneumatic cylinder transfers the energy provided by the compressed gas to mechanical energy. Aside from compressed air, inert gases are also applied particularly for self-contained systems.

Answer 3

You did not tell the way you want air to be used for pumping. You may pressurise the 200Lt. drum and take out the solvent with a tube--it is dangerous when the flash point of the liquid is close to ambient and vapourisation is rapid. Secondly, you may use pneumatically driven (driven by compressed air) pump; it will be the safest option, since an electrically driven pump may produce sparks at the terminals and at the starter switch, creating a chance to ignite the vapourised solvent present in the viscinity.

Answer 4

Flammable liquids can be moved by pressuring their containers. There is always the possibility, though of a leak or burst hose. The compressed energy in the headspace of the supply container can cause a not of material to be released, where stopping a pump instantly shuts off the supply.

Answer 5

Compreesed air and compressors do get hot. You better check with the suppliers of the chemicals, they are in a better position to advise you on the alternative options of further distribution. May be you just need two stage pressure regulators.

Answer 6

You would hear it. The alarm clock can't be floating in the jar, it has to be resting on a surface of the jar. The alarm would vibrate the jar which would vibrate the air around the jar. It wouldn't be as loud, but it would still make a sound.

Answer 7

Your could perhaps use a Peristaltic pump with PTFE tubing.

Answer 8

it would be the safest way

Answer 9

what