The groove gate valve is produced by introducing European rubber and valve manufacturing technology, overcoming defects such as rubber aging and rust. This valve utilizes the compensating effect of slight elastic deformation generated by the elastic gate plate to achieve good sealing effect. The valve has significant advantages such as lightweight opening and closing, reliable sealing, good elastic memory, and long service life. The product is widely used as a regulating and shut-off device on pipeline lines in industries such as tap water, sewage, seawater, water treatment, environmental protection, construction, fire protection, petroleum, chemical, power, food, medicine, textile, shipbuilding, energy, etc.

The opening and closing component of the groove gate valve is the gate plate, and the movement direction of the gate plate is perpendicular to the fluid direction. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled. The gate valve has two sealing surfaces, and the two sealing surfaces of the commonly used mode gate valve form a wedge shape. The wedge angle varies with the valve parameters, usually 50 degrees, and 2 ° 52 degrees when the medium temperature is not high. 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 change its processability and compensate for the deviation of the sealing surface angle during the processing. This type of gate is called an elastic gate, usually connected by flanges.

The gate of the groove gate valve moves in a straight line with the valve stem, which is called a lift stem gate valve or a rising stem gate valve. Usually, there are trapezoidal threads on the lifting rod, and through the nut on the valve and the guide groove on the valve body, the rotational motion is converted into linear motion, that is, the operating torque is converted into operating thrust.

The groove gate valve overcomes defects such as rubber aging and rust. Groove gate valves are widely used in the water supply and drainage of fluid pipelines, as well as in pipeline engineering such as fire protection, air conditioning, gas, petroleum, chemical, water treatment, municipal, shipbuilding, etc., to control fluid flow.

The groove gate valve achieves good sealing effect by compensating for the slight elastic deformation generated by the elastic gate plate, and has significant advantages such as lightweight opening and closing, reliable sealing, good elastic memory, and long service life.

The groove gate valve utilizes the deformation compensation effect generated by the overall sealing of the gate to achieve a good sealing effect, overcoming the problems of poor sealing, water leakage, and rust in general groove gate valves. The concealed groove gate valve can be widely used as a regulating and throttling device on fluid pipelines such as fire protection, tap water, sewage, construction, petroleum, chemical, food, and medicine.

General requirements for groove gate valves:

1. The specifications and categories should comply with the requirements of the pipeline design documents.

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

3. The working pressure 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; Under the closed condition of the concealed rod elastic seat sealing gate valve, any side should be able to withstand 1.1 times the valve working pressure value without leakage; When the valve is open, the valve body should be able to withstand twice the working pressure of the valve.

4. The manufacturing standard 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.

Characteristics of groove gate valve:

1. Integral encapsulation: The gate adopts integral encapsulation, which has good adhesion performance and geometric dimensions, reliable sealing, and long service life.

2. Lightweight; The valve body is made of ductile iron, which is lightweight and easy to install.

3. Flat bottomed valve seat: The bottom adopts the same flat bottomed valve seat design as the water pipe, which does not produce debris accumulation and provides reliable sealing.

4. The inner cavity is coated with epoxy resin to prevent corrosion and rust. It can not only supply raw water, but also be used in sewage systems.

5. Two "O" seals: The valve stem adopts two O-ring seals, which have low friction resistance, light opening and closing, and no water leakage.

Technical parameters of groove gate valve:

Sealing test: 2.00MPa

Working temperature: 0-120 degrees Celsius

Pressure rating: 1.6MPa

Valve body pressure resistance: 2.7MPa