Which check valve is best?

How to choose the right check valve

• In general, ball check valves are simple and cost effective.
• Swing check valves are the most common check valves.
• Because of the internal shafts which are within the flow stream, the tilting disc check valve is used for water and treated effluent applications.

What is a sanitary check valve?

Sanitary check valves are specialized valves designed to pass fluid in one direction, preventing reverse or backflow. These valves are used for various purposes, including: Evacuating process lines of residual products (in combination with a pressurized air source) Venting air from the piping system.

Is there a PVC check valve?

PVC swing check valves are a type of check valve designed to allow flow in one direction only. Commonly used in applications where backflow would cause flooding or damage sensitive components, PVC swing check valves are a vital piece of many PVC systems.

Which is better swing or spring check valve?

A spring loaded check valve will help minimize effects of water hammer, while a swing check valve can exacerbate the issue. Any water hammering effects present in a piping system can potentially be amplified by a swing check valve.

What are the different types of check valves?

Read more about the different varieties of check valve types below.

• Ball Check Valves.
• Globe Valve.
• Dual Plate Check Valves.
• Lift Check Valves.
• Piston Check Valves.
• Stop Check Valves.
• Swing Check Valves.
• Tilting Disc Check Valves.

Are check valves sanitary?

Check Valves are widely used for both sanitary and industrial applications to prevent backflow of product. Ball Check Valves are designed to allow full product flow during processing.

Do PVC check valves restrict flow?

One, check valves are prone to jamming in the open position, thereby becoming an uncheck valve of sorts. Two, they are prone to jamming in the closed position, preventing water flow in any direction. And three, they can restrict water flow.

How long will a PVC check valve last?

While typical component lifespans are application specific, manufacturers suggest metal and plastic check valves should be replace every 5-7 years whereas check valves manufactured from rubber may remain fully serviceable for up to 35-50 years.

What is the purpose of swing check valve?

A swing check valve is a simple device designed for the one-way flow of a liquid or gas. It has a disc that swings on a hinge, opening to allow fluid to flow in, then closing to prevent backflow. Swing check valves are designed in a variety of sizes with different features to suit specific application types.