What is hand pump?

A hand pump is a manual device used to pump water or other liquids from a source to a desired location. These pumps are typically operated by hand and are often used in rural areas or in emergency situations where access to electricity or a motorized pump is not possible.

Hand pumps come in various designs and sizes, ranging from small, portable pumps used for pumping water from wells to larger, more industrial pumps used for transferring liquids in commercial settings. They can be made from materials such as plastic, metal, or cast iron, depending on the intended use and durability required.

Some common types of hand pumps include piston pumps, diaphragm pumps, and rotary pumps. Piston pumps use a piston and cylinder arrangement to create suction and force liquid through the pump, while diaphragm pumps use a flexible diaphragm to create pressure and move liquid. Rotary pumps use a rotating mechanism to create suction and transfer liquid from one place to another.

Hand pumps are often used in developing countries where access to clean water is limited, as they are relatively inexpensive, easy to maintain, and do not require electricity or fuel to operate. They are also commonly used for pumping water from wells, cisterns, or other water sources in rural or remote areas.