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Your Checklist For Choosing The Right Check Valve

Your Checklist For Choosing The Right Check Valve

Imagine water or some other fluid like oil or gas is flowing through a pipe. You need it to flow in one direction and not backtrack. That’s where a check valve comes in.

Utilizing an appropriate variety of check valve is essential to avoid complications or potential damages to pipeline infrastructure. Here's a straightforward guide to different types of check valves.

The Functionality of Check Valves

Check valves are specifically engineered to avert the reverse flow of liquids within pipes. Generally, they remain in a closed position until the fluid pushes through. They are also capable of shutting off when downstream pressure surpasses upstream pressure.

For the system to function correctly, it's vital to install check valves at suitable intervals.

Select the Appropriate Type of Check Valve

There are various categories of check valves, each serving unique functions. Let’s examine the three primary types.

1. Swing Check Valve

Swing check valves rank among the most frequently utilized check valve types. Comprising a body, bonnet, and a disk with a hinge, the hinge allows the disk to pivot back and forth, resembling a gate hinge.

These valves facilitate uninterrupted forward flow of fluids. They can be found in several formats, including standard, dual-disc, and tilted disc.

Common applications for swing valves include:

• Toilets with flushing mechanisms

• Water and waste maintenance systems

• Sewage treatment facilities

• Firefighting and flood management systems

• Applications involving both gases and liquids

Swing check valves tend to be larger, making them more appropriate for scenarios that require a full-port option, especially where space and flow are not constrained.

2. Lift Check Valve

Much like a globe valve, lift check valves operate by a piston or ball to manage the flow instead of employing a hinge mechanism. They are specifically crafted for conditions involving high pressure or rapid flow rates.

Common utilizations for lift check valves encompass:

• Water distribution systems

• Heating mechanisms

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  Pumps

• Domestic applications

• Industrial processes:

  • Pipelines

  • Oil and Gas transportation

  • Food and beverage manufacturing

  • Biopharma sector

  • Marine applications

Lift check valves can be utilized in both horizontal and vertical piping systems.

3. Piston Check Valve

Piston check valves are akin to lift check valves, but their design includes a ‘dashpot’ with a piston and cylinder. This implementation creates a dampening effect, minimizing the likelihood of pipe damage.

Piston check valves come in various configurations, such as Y-pattern and 90-degree models.

These valves are frequently employed alongside globe and angle valves, especially in pipelines that undergo frequent directional changes.

Typical applications of piston check valves include:

• Oil and gas pipelines

• Water and sewage systems

• Water distribution networks

Piston check valves operate effectively in high-pressure and high-velocity scenarios.

Selecting a Check Valve

Check valves provide an efficient method to regulate the forward movement of fluids through various piping systems. Their applications span both residential and industrial environments.

Nonetheless, assessing the specific requirements of your system is crucial to selecting the suitable check valve type. Additionally, one must consider the size and specifications pertinent to the pipes or systems involved.

Contact CVP Manufacturing to learn more about check valves and our suggested applications or request a quote.

Understanding Tilted Disc Check Valves

The Tilted Disc® Check Valve stands out as an exceptional option for applications involving raw water, cooling water, and treated water or wastewater. Its efficiently designed body contouring, coupled with flow areas that are 40% greater than nominal pipe sizes and a hydrodynamic disk, ensures minimal headloss compared to other check valves available today.

For additional information, please refer to Tilted disc check valve Manufacturing.