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“Bonnet valves” are common components in industrial valves.
The term “bonnet” refers to the cover or cap located on top of the valve.

This component is used to protect and contain other parts of the valve, such as the body and the sealing system.

This component provides protection, ease of maintenance and sealing for valves, enabling them to properly handle fluid flow in various industries.

Types of Bonnet Valves

There are different types of bonnet valves used in various industrial productions. Here are some common examples:

Screw bonnet

This type of valve uses a screw thread to firmly connect the bonnet to the valve body. It is a simple and efficient design that offers a good seal.

Bolt bonnet

This type of valve uses bolts to secure the bonnet to the valve body. The bolts can be tightened or loosened to allow access to the inside of the valve for maintenance and repair.

Pressure seal bonnet

High pressure valves often use a bonnet designed to contain and manage the fluid pressure inside the valve. This type of bonnet often requires an adequate seal and may be designed with special seals or locking devices.

Flanged bonnet

Some valves use a flanged bonnet that is fixed to the valve body by flanges. This type of bonnet allows easy removal and replacement, making maintenance easier.

Union bonnet

In some applications, the bonnet can be welded directly to the valve body. This type of bonnet provides a permanent and robust connection.

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