Qingdao Fluido Industrial Co. Ltd.

A pipe coupling, also known as a coupler, is a short pipe fitting used to connect two pipes together, either to extend a pipeline, change its size, or repair a leak. 

A non-return valve lets the fluid flow in one direction. When fluid in the line reverses direction and begins to flow back the way it came, a check valve serves to stop or prevent the backflow by allowing flow in one direction.

Globe valves are designed for throttling and regulating flow, while gate valves are primarily used for on/off control and isolation

Valves are essential components in fluid systems, offering control over flow direction, pressure, and volume. They can be broadly categorized into manual, actuated, and automatic types, each with various subtypes. Selection depends on factors like fluid type, pressure, temperature, flow requirements, and desired actuation method.

A check valve, also known as a one-way or non-return valve, allows fluid (liquid or gas) to flow in only one direction. It prevents backflow, ensuring that the fluid moves in the desired direction and protects the system from damage.

A full port (or full bore) ball valve is a type of valve where the internal diameter of the valve's bore (the opening through the ball) is the same size as the pipe it's connected to. This design ensures minimal flow restriction and pressure drop when the valve is fully open, allowing for maximum flow capacity.

Ball valves use a rotating ball with a bore to control flow, offering quick shut-off and tight sealing, while gate valves use a sliding gate to regulate flow, often preferred for high flow capacities and high-pressure environments.

A Pressure Reducing Valve (PRV) maintains a consistent downstream pressure by automatically adjusting the flow of a fluid or gas, even when the upstream pressure fluctuates. It works by balancing the force of a spring against the force exerted by the fluid or gas on a diaphragm or piston, which then controls the valve opening