Now, let's explore the different types of bronze check valves:

Swing Check Valve

The swing check valve is one of the most common types of check valves. It consists of a disc that swings on a hinge or a trunnion, allowing fluid to flow in one direction while preventing reverse flow. When the flow stops or reverses, the disc swings back to close the valve. Bronze swing check valves are ideal for applications where a tight seal and low head loss are required. They are commonly used in water supply systems, wastewater treatment, and industrial processes.

Lift Check Valve

The lift check valve, also known as the piston check valve, employs a piston or a ball as the check mechanism. When the pressure on the inlet side exceeds that on the outlet side, the piston or ball lifts, allowing flow. When the flow reverses, the weight of the piston or ball, combined with the pressure difference, closes the valve. Bronze lift check valves are suitable for applications where high pressure and temperature are involved, such as in steam systems and oil and gas pipelines.

Dual Plate Check Valve

The dual plate check valve is a compact and lightweight design that employs two hinged plates or disks. These plates swing open with the flow and close when the flow stops or reverses. This type of check valve offers low head loss and is highly efficient. Bronze dual plate check valves are commonly used in industries where space is limited, such as HVAC systems, as well as in water supply and wastewater applications.