What Is A Fluorine-lined Gate Valve? What Are Its Characteristics? Detailed Explanation Of The Working Principle And Precautions Of Fluorine-lined Gate Valve!

Lined Gate Valve is a valve. The opening and closing part of the fluorine-lined gate valve is the gate valve, and the movement direction is perpendicular to the fluid direction. The gate valve can only be fully opened and closed, but cannot be adjusted or throttled. The gate has two sealing surfaces. The two sealing surfaces of the commonly used gate valve are wedge-shaped. The wedge angle varies with the valve parameters. When the medium temperature is not high, the wedge angle is 2°52′. The wedge gate can be made into a whole, called a rigid gate; it can also be made into a gate that can produce slight deformation to improve its process performance and compensate for the deviation of the sealing surface angle during processing. This gate is called an elastic gate.

Features of fluorine-lined gate valve: Light weight: The valve body is made of ductile iron, which is about 20%~30% lighter than the traditional gate valve, and is easy to install and maintain.

Flat bottom gate seat: Due to foreign matter such as stones, wood blocks, cement, iron filings, and debris, traditional gate valves are often deposited in the groove at the bottom of the valve. After flushing with water pipes, it is easy to close loosely, causing water leakage. The bottom of the elastic seat gate valve is designed to be the same flat bottom as the water pipe machine, which is not easy to deposit debris, so that the fluid can flow unimpeded.

Overall rubber packaging: The gate uses rubber packaging for the overall inner and outer rubber. European rubber vulcanization technology enables the gate after vulcanization to ensure accurate geometric dimensions. The rubber is firmly combined with the ductile iron gate, not easy to fall off, and has good elastic memory.

Precision casting valve body: The valve body is cast, and the accurate geometric dimensions enable the valve body to ensure the sealing of the valve without any fine processing.

Working principle of fluorine-lined gate valve:

Turn the handwheel, and through the advance and retreat of the handwheel and the valve stem thread, lift or reduce the valve plate connected to the valve stem, thereby realizing the opening and closing function.

According to the configuration of the sealing surface, the gate width can be divided into wedge gate valve and parallel gate valve, and the wedge gate valve can be divided into single gate, double gate and elastic gate. Parallel gate valves can be divided into single gate valves and double gate valves. According to the thread position of the valve stem, it can be divided into rising stem gate valve and dark stem gate valve.

The following matters should be noted when installing and maintaining fluorine-lined gate valves:

Handwheels, handles, and transmission mechanisms must not be used for lifting or collision.

Double gate valves should be installed vertically (i.e. the valve stem is in a vertical position and the handwheel is at the top).

The gate valve with bypass valve should be opened before opening (to balance the inlet and outlet pressure difference and reduce the opening force).

Gate valves with transmission mechanisms should be installed according to the product manual.

If the valve is frequently opened and closed, lubricate it at least once a month.