What is the difference between ball valves and diaphragm valves?

Question

Accepted Answer

Ball valves and diaphragm valves are both types of valves used in various industries, but they differ in their design and functionality.

Ball valves have a spherical closure unit (ball) that rotates to control the flow of fluid, while diaphragm valves use a flexible diaphragm to regulate the flow.
Ball valves are typically used for on/off control and have a low pressure drop, while diaphragm valves are often used for throttling and have a higher pressure drop.
Ball valves are generally more durable and have a longer lifespan, while diaphragm valves are more suitable for applications requiring high purity or sterile conditions.
Examples of industries where ball valves are commonly used include oil and gas, water treatment, and HVAC systems, while diaphragm valves are often found in pharmaceutical, food and beverage, and biotech industries.

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