Main

The body is the most important pressure containing structure of the valve and the majority, but easy to identify because it is the mass of the valve. Contains all the internal parts of the key, which comes into contact with the controlled substance. The hood is connected to the body and provides the containment of liquids, gases or mud to be controlled.

Globe valves are generally two-way valves, although three-way valves are usually produced in a linear flow. Ports are openings in the fluid that circulates in the body and zoom out. Both ports are directly opposite each other on the body, or be oriented at an angle so that the angle of 90 degrees. Globe valves with ports at an angle are called angle valves. A shutoff valve can also be a place in the form of "Y". This shape of valves is called Y globe valve .


Hood

The hood provides a tight seal for the valve body. The threaded rod passes through a hole on the cap threads. The valves can have a string, marriage or screw cap. screw top hat is the simplest and provides a permanent, pressure-resistant. Union bonnet is suitable for applications that require frequent monitoring or cleaning. It is also more resistant organism. The cover is fixed with screws used for higher pressure or more. Bonnet also include packaging, a material which contains movable joint between the hood and trunk of the cycle valve.

Seat ring

The seat offers a discount stable, unified and interchangeable. Seat rings are usually held in place by the pressure of mounting the hood to the tip of the body. This pushes the box down on the edge of your seat and keeps the valve body. Seat rings can also be passed and screwed with a thread in the same area of the body cut. But this method causes the movement of the seat in the maintenance difficult or impossible. security rings are usually even with the head tilted to allow a certain direction during the final stages of closing the valve.

Economically using the valves or valves with a similar mechanism in the lines is often a rubber stamp at the bottom of the disc to the seat, so the rubber can be pressed against the seat to form a seal in position closed.

The plug or disc

The closing of the valve. The connectors on the trunk, pushed or the leg or along the river connected gas. Catches are usually balanced or unbalanced type. asymmetric solids and are used with smaller valves and low pressure drop across the valve. The benefits are of simple construction, with a line of flight as possible at headquarters and, in general, a lower cost. The disadvantages are the small size, with great relief forces needed to adapt and maintain the flow is often impractical. Balanced cables have holes through the lid. The benefits are lighter than the top does not stop to overcome the static forces. But a second flight between the plug and the cage is established is generally higher cost.

Stem Cells

The trunk serves as a connection to the unit within the valve and transmits the force control. The spindles of the valves are smooth or threaded actuator for manually operated valves. The plain bars are surrounded by packing material to prevent leakage of the valve material. This packing material is a portable and must be replaced during maintenance. With a smooth shaft threaded ends to allow the plug connection and unity. Parents must not only withstand a great amount of compression force during the closure, but also have high tensile strength to open the valve. In addition, stem cells have very straight, or a minor loss, to ensure proper closure of the valve. Assume that the minimum reduces wear on the joint in the hood, which seals to prevent spillage. The voltage can be supplied with a veil over the nut of the penetration of the outer packaging materials to prevent accelerated wear.

Cage

The cage is part of the valve around the cap and inside the valve body. In general, the cage of one of the major determinants of the movement within the valve. Since the connector openings in the cage is moved and exposed to flow increases and vice versa. The design and layout of the openings can have a significant effect on the flow of materials. The cages are also used for the seat from the top of the valve guide to a good barrier, and replace the management of the hood.