Horizontal Swing Check Valve

Horizontal swing check valve is an automatic valve that drives the valve disc to open and close through the unidirectional flow of medium. The valve disc rotates around a fixed axis through a hinge mechanism to block the reverse flow of the medium. It is suitable for horizontally installed pipeline systems. The valve disc rotates around the fixed axis through the hinge mechanism to block the backflow of the medium. It is suitable for horizontally installed pipeline systems.
Core structure
Valve disc and hinge: The valve disc is a disc or door-shaped structure with a metal or rubber/synthetic material sealing surface, which is fixed to the inner side of the valve body through the hinge shaft 17. Some new designs add leaf springs or push components to accelerate the closing speed of the valve disc and reduce fluid impact 26.
Seat seal: Soft sealing seat structure (such as rubber or polytetrafluoroethylene) can improve the sealing performance, and is fixed to the valve body by fasteners to prevent the medium from eroding and falling off.

 

horizontal swing check valve

 

‌Selection suggestions‌:

‌Media containing impurities‌: Prefer models with carbide sealing surfaces or filters‌.
‌High pressure and high temperature‌: Forged steel valve body (such as A105, F11) + hard seal surfacing (Stellite).
‌Fast closing requirements‌: Configure leaf springs or hydraulic buffer components to reduce water hammer impact‌.

Applications
‌Oil and gas‌:
Backflow prevention of oil pipelines, media isolation of wellhead devices and refining equipment‌.
‌Chemical and electric power‌:
High-temperature reactors, boiler steam systems and corrosive fluid control‌.
‌Municipal and industrial‌:
Backflow prevention of water pump outlets, fire protection pipe networks and sewage treatment pipes‌.
‌Maintenance and precautions‌
‌Regular inspection‌: Check the wear of the valve disc sealing surface and the flexibility of the hinge shaft every 6 months, and replace damaged seals in time‌.
‌Installation direction‌: Strictly horizontal installation to avoid the valve disc from being unable to close completely due to tilt‌.
‌Special working conditions‌: The valve cavity needs to be cleaned regularly for medium containing particles to prevent jamming‌

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