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DIN Cast Steel Swing Check Valves Wholesale

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  • +86-578-2876658

  • rock@rockvalves.com

  • Zhongchuang lndustrial Zone, Bihu Town, Liandu District, Lishui, Zhejiang, P. R. China.

Cast Iron Check Valves Manufacturer

Check Valves are valves that automatically open and close the valve disc by the flow of the medium itself to prevent the backflow of the medium. Its main function is to prevent the backflow of the medium, the reverse rotation of the pump and the drive motor, and the discharge of the container medium. Check valves can also be used in pipelines that supply auxiliary systems where the pressure may rise to exceed the system pressure.

since 2006

ZHEJIANG ROCK VALVE CO., LTD.

ZHEJIANG ROCK VALVE CO., LTD. is a China Check Valves Wholesaler and Custom Check Valves Factory. Has fulfilled all the qualifications to manufacture a wide range of industrial valves for the most severe and demanding services of the Oil, Gas, Refinery, Chemical, Marine, Power, and Pipeline Industries.
ROCK Valve takes sincere pride in our ability to manufacture both commodity and specialty valves that meet and exceed the needs of our customers. All sizes, pressure classes, and metallurgical compositions are managed in-house utilizing the strictest quality control measures to ensure the customer’s total satisfaction.
ROCK Valve products include gates, globes, checks, balls, and plugs. Valves utilized throughout the industry must meet rigorous quality and production standards. ROCK valve has earned its API 6D, ISO: 9001, and CE-PED certifications. All Valves are manufactured to fully comply with ASTM, ANSI, API, BS JIS, and MESC DIN standards., With years of dedication and commitment to quality, design, and service, ROCK Valve has grown to be one of the premier valve manufacturers in the industry with the largest inventory of high-pressure ball, gate, and check valves on the West Coast. We pride ourselves on our high-quality products, timely delivery capabilities, and competitive prices.
On behalf of all of the members at ROCK Valve, we thank you for the opportunity to earn your business.

ZHEJIANG ROCK VALVE CO., LTD.
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Industry Knowledge Extension

What Are the Types of Cast Iron Check Valves?

Lift Check Valves:

Lift check valves are the simplest type of check valve. They consist of a disk that lifts off its seat to allow flow in one direction. This type is suitable for applications with lower pressure drops and moderate flow rates.

Swing Check Valves:

Swing check valves have a hinged door or flap that swings open to allow flow in one direction. These valves are ideal for low-pressure applications and are commonly used in gravity flow systems.

Tilt Disk Check Valves:

Tilt disk check valves operate similarly to lift check valves but with an added feature. The disk tilts on a pivot, allowing a larger flow area and reducing pressure drop. This makes them suitable for high-flow applications.

Wafer Check Valves:

These valves are designed with a wafer body style, which means they are thin and compact. Wafer check valves are often used in applications where space is limited, such as in pipelines.

Butterfly Check Valves:

Butterfly check valves combine the principles of a butterfly valve and a check valve. They provide a quarter-turn operation and are ideal for applications requiring frequent operation.

Double Disc Check Valves:

Double disc check valves use two discs to ensure a tight seal against backflow. This type is suitable for high-pressure applications where a positive shut-off is required.

When Are DIN Cast Steel Swing Check Valves Applicable?

DIN cast steel swing check valves are a robust choice for a variety of industrial applications. So, when are they the applicable? Let's consider some scenarios:

High-Pressure Applications:

DIN cast steel swing check valves are designed to withstand high pressures, making them suitable for applications where pressure surges are common.

Corrosive Environments:

The material properties of cast steel make these valves resistant to corrosion, which is essential in chemical processing and other industries where fluids can be corrosive.

Large Diameter Pipelines:

DIN cast steel swing check valves are available in larger sizes, making them ideal for large diameter pipelines where maintaining flow integrity is critical.

Automotive and Marine Industries:

These industries require valves that can handle high pressures and are resistant to the elements. DIN cast steel swing check valves meet these requirements, making them a popular choice.

Emergency Shut-Off Systems:

In systems where an immediate shut-off is necessary, such as in fire protection or emergency response systems, the reliability and strength of DIN cast steel swing check valves are invaluable.

Petrochemical and Refining:

The petrochemical and refining industries often deal with high-temperature fluids and gases. DIN cast steel swing check valves can handle these conditions and are often used in these environments.

Under What Circumstances Do Cast Steel Swing Check Valves Leak?

While cast steel swing check valves are designed to provide a reliable seal, there are circumstances under which they may leak. Understanding these can help in their proper maintenance and operation:

Incorrect Installation:

If a cast steel swing check valve is not installed correctly, it may not seal properly, to leaks. This can happen if the valve is not aligned properly or if it's subjected to external forces.

Wear and Tear:

Over time, the seating surfaces of the valve can wear down, especially in abrasive or high-velocity flow conditions. This wear can leaks as the valve fails to create a proper seal.

Corrosion:

Although cast steel is more resistant to corrosion than cast iron, it is not immune. In environments with highly corrosive fluids, the valve's components can be compromised, to leaks.

Debris in the System:

Foreign objects in the fluid stream can cause damage to the valve's seating surfaces, resulting in leaks. Regular maintenance and filtration can help prevent this issue.

Incorrect Size or Rating:

Using a valve with an incorrect size or pressure rating for the application can cause it to leak. It's essential to select the appropriate valve for the system's specific requirements.