The differences between Check Valve and ball valve

Check valves and ball valves are both types of valves used in piping systems, but they serve different purposes and operate differently. Here's a comparison of their main differences:

Function

Check Valve:

Allows flow in only one direction.

Prevents backflow automatically.

Operates automatically—no manual control.

Ball Valve:

Used to start or stop the flow.

Allows flow in both directions (when open).

Requires manual, electric, or pneumatic operation.

Operation

Check Valve:

Opens when fluid flows in the correct direction.

Closes when flow stops or reverses.

Common types: swing check, lift check, and diaphragm check.

Ball Valve:

Uses a rotating ball with a hole through it.

Turning the handle 90° opens or closes the flow.

Provides tight shut-off.

Flow Control

Check Valve:

No control over flow rate.

Only controls direction of flow.

Ball Valve:

Can be used to manually control flow (on/off).

Not ideal for throttling (can cause damage if partially open).

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