Swing Check Valve

LYV® is a China quality swing check valve supplier. This Industrial Swing Check Valve is a type of valve that automatically opens and closes based on the flow of the medium itself. Its main function is to prevent the backflow of the medium in the pipeline, thereby protecting the upstream equipment and ensuring the safety of the system.This API 6D Swing Check Valve features flexible opening and closing, reliable sealing, and easy maintenance as a high performance pipe safety equipment.

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Product Introduction

The most distinctive feature of LYV® swing check valve is that it has a freely rotatable valve disc. When the medium flows in the forward direction, the fluid pressure pushes the valve disc to open. When the flow stops or backflow occurs, the valve disc automatically closes under the action of its own weight, the backflow force of the medium or auxiliary devices, effectively blocking backflow. Its structural design reduces water hammer impact, has good sealing performance, and imposes relatively few restrictions on installation positions.

Therefore, this High Performance Swing Check Valve is widely used at the pump outlets of water supply and drainage, petroleum, chemical, power and other systems, as well as on other pipelines where it is necessary to prevent the backflow of the medium, and it is a key safety protection component.

Our goal is not only to achieve excellence in product quality but also to provide our customers with excellent service and comprehensive technical support. Our professional team is always ready to provide you with customised check valve solutions, no matter what your needs are.Please contact us now to discuss your specific needs, and we will tailor a swing check valve solution that meets your unique requirements.

Specifications

Size Range:

NPS 2”-36”; DN50-DN900

Nominal Pressure:

150LB-2500LB; PN16-PN420

Temperature Range:

-196℃～60℃（depends on design and material）

End Connections:

Flange; Butt-welded

Body Materials:

ASTM A216-WCB; ASTM A217-WC1; ASTM A352 LCB; ASTM A351 CF8/CF8M/CF3M

Disc Materials:

ASTM A216-WCB; ASTM A217-WC1; ASTM A352 LCB; ASTM A351 CF8/CF8M/CF3M

Seat :

ASTM A105 ;A182-F11 ;A350-LF2

Design & Manufacture Standard:

API 6D/BS-1868

Face-to-face Standard:

ASME B16.10

End Connection Standard:

ASME B16.5/ ASME B16.25

Test & Inspection Standard:

API 598

Features

■ High Reliability.

■ Simple structure.

■ Energy Efficiency.

■ Reliable sealing.

■ One-way flow.

What is Swing check valve?

This Flanged Swing Check Valve is a one-way valve consists of a valve body, a valve disc or flap, a valve seat and sealing components. Its purpose is to allow fluid flow in one direction while preventing fluid flow in the opposite direction. Swing check valves are frequently used in piping systems to regulate the direction of fluid flow.

How does Swing check valve work?

When fluid flows in the intended direction, its pressure opens the valve flap, allowing it to pass through. This opens the way. However, if the fluid tries to flow in the opposite direction, its pressure will cause the valve flap to close and push against the seat, preventing reverse flow..

Why LYV®️ valves:

●LYV® has a modern production base covering an area of over 14,000 square meters, providing a solid foundation for efficient and large-scale production. The workshop is equipped with over 50 advanced CNC machine tools, ensuring the high precision and high quality of each valve product through precise processing technology.

●Our professional team is led by experienced senior engineers and consists of over 100 skilled craftsmen and technical workers, who jointly ensure every aspect of the production process. Since its establishment in 2000, the company has been continuously dedicated to the manufacturing of industrial valves. Over two decades of experience have enabled us to properly handle various complex working conditions and technical requirements.

●The company has always adhered to strict quality standards. Its core products have passed international authoritative certifications such as ISO 9001, API 6D, API 607 and CE, and it is still continuously expanding the certification system, committed to providing more reliable valve solutions for global customers.