Non-rising Gate Valves

Hanno Valve Non-rising Gate Valves are used for devices that can be adjusted and throttled

The opening and closing components of Non closing Gate Valves are gate plates, which move perpendicular to the fluid direction and can be adjusted and throttled. The gate valve has two sealing surfaces, and the most commonly used mode gate valve has two sealing surfaces that form a wedge shape. The wedge angle varies with the valve parameters, usually 50 degrees, and when the medium temperature is not high, it is 2 ° 52 '' ''. The gate of a wedge gate valve can be made as a whole, called a rigid gate; It can also be made into a gate that can produce slight deformation to improve its processability and compensate for the deviation of the sealing surface angle during the processing. This type of gate is called an elastic gate.

General requirements for Non-rising Gate Valves

1 The specifications and categories of Non-rising Gate Valves should comply with the requirements of the pipeline design documents.

2 The model of Non rolling Gate Valves should indicate the national standard number requirements they are based on. If it is an enterprise standard, the relevant description of the model should be indicated.

3 The working pressure of Non-rising Gate Valves should be ≥ the working pressure of the pipeline. Without affecting the price, the working pressure that the valve can withstand should be greater than the actual working pressure of the pipeline; Either side of the elastic seat sealed gate valve should be able to withstand 1.1 times the valve working pressure value without leakage when it is closed; When the valve is open, the valve body should be able to withstand twice the working pressure of the valve.

The manufacturing standard for Non rolling Gate Valves should specify the national standard number it is based on. If it is an enterprise standard, the procurement contract should be accompanied by the enterprise document.

Materials

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