Preventing Contamination
In systems where clean or sterile conditions are crucial, non-return valves prevent contaminated fluids from re-entering the system.
Maintaining Pressure
Non-return valves help maintain pressure levels by preventing fluids from flowing backward and causing pressure drops.
Avoiding Pump Damage
In pump systems, backflow can damage pumps and decrease their efficiency. Non-return valves protect pumps by preventing reverse flow.
Safety
Non-return valves can play a safety role by preventing potentially hazardous substances from accidentally flowing backward.
Regulating Flow
In some cases, non-return valves are used to control the flow rate by allowing fluids to flow only in the desired direction.