What Happens When a Check Valve Fails?

Do you know what happens when a check valve fails? Your system can no longer control the one-way flow of the medium properly. The most direct results include backflow, reduced flow, pressure loss, valve leakage, unusual noise, and pipe vibration. For this reason, you should not treat check valve failure as a small, isolated problem. If […]
What Is Check Valve Cracking Pressure?

Do you know what check valve cracking pressure is?Check valve cracking pressure is the minimum pressure needed to push the valve disc open and allow fluid to flow through the pipeline.If the pressure is too low, the valve stays closed. Once the required pressure is reached, the disc opens and allows fluid to pass. Cracking […]
What Is a Check Valve in Plumbing?

Do you know what a check valve is in a plumbing system?A plumbing check valve is a one-way valve that allows water to flow in only one direction.When water starts flowing backward, the valve closes automatically. It prevents backflow, protects pumps and other equipment, and helps your plumbing system operate safely and steadily.Next, I will […]
What Causes Water Hammer in Check Valves?

Do you know why water hammer occurs in a check valve? The reason is simple: improper valve closing can easily cause water hammer.If the valve closes too quickly, the water flow stops suddenly and creates a pressure shock. If the valve closes too slowly, reverse flow develops. The valve disc then slams against the seat, […]
What Is a Check Valve in HVAC?

Do you know what a check valve is in an HVAC system? It is a one-way valve that lets refrigerant, water, or condensate flow in only one direction.When the fluid tries to flow backward, the valve closes quickly. This stops backflow and protects the equipment. Next, I will explain common facts about HVAC check valves […]