Groove concealed stem gate valve is a type of groove gate valve, which has significant advantages such as lightweight opening and closing, reliable sealing, good elastic memory, and long service life. It is lightweight, and the concealed stem groove gate valve is made of ductile iron, which reduces the weight by about 20% -30% compared to traditional gate valves, and is easy to install and maintain.

The groove concealed stem gate valve achieves good sealing effect by compensating for the slight elastic deformation generated by the elastic gate plate. This valve has the advantages of light opening and closing, reliable sealing, good elastic memory, and long service life. It 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 concealed stem 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.

Characteristics of groove concealed stem gate valve:

For a long time, the general gate valves used in the market have generally suffered from water leakage or rusting. Our company has introduced European rubber and valve manufacturing technology to produce elastic seat seal gate valves, which overcome the defects of poor sealing and rusting of general gate valves. The elastic seat seal gate valve uses the compensating effect of slight elastic deformation produced by the elastic gate plate to achieve good sealing effect. This valve has significant advantages such as light opening and closing, reliable sealing, good elastic memory, and service life.

Structural characteristics of groove concealed stem gate valve:

1) The groove concealed stem gate valve features a special upper sealing structure between the valve stem and the valve cover, designed with three O-ring seals. Compared with the packing sealing structure of traditional gate valves, the channel seal is tight and the friction resistance is greatly reduced. When the valve is at any opening, under pressure, and has a valve stem locking function, the valve stem will not be pushed out by pressure during operation and maintenance, avoiding personal injury

2) The lightweight and compact structure reduces the working height by over 60mm to 300mm compared to traditional gate valves, saving construction space; The body is made of ductile iron material, which reduces the weight by about 20% -30% compared to traditional gate valves, and is easy to install and maintain.

3) The groove concealed stem gate valve is fully encapsulated with rubber and new vulcanization technology for the inner and outer parts of the ductile iron skeleton of the valve core. The fit is tight and reliable, with good geometric dimensions and sealing elasticity, isolating the valve core metal from the fluid.

4) The copper nut of the integrated copper nut valve core is tightly connected to the ductile iron skeleton using special technology, and will not loosen even under long-term operation and water flow impact, avoiding control failure of the valve.

5) Our company's flat bottomed valve seat elastic seat sealing gate valve adopts a full basin straight through design at the bottom, which is equivalent to a straight pipeline and is not easy to accumulate debris. The seal is reliable and allows fluid flow to be unobstructed.

6) The self sealing valve cover and valve body are designed with a self sealing structure. Within the allowable pressure range, the higher the fluid pressure, the tighter the seal.

The purpose of groove concealed stem gate valve:

1) Thrust bearings reduce frictional resistance and lower operating torque.

2) Three O-rings can significantly reduce water leakage, and the O-ring can be replaced under pressure and continuous water conditions.

3) Double tooth valve stem can reduce operating torque.

4) The inner and outer parts are designed with rubber laminated pressure, which can prevent the valve from falling off due to long-term use. The bottom of the valve has no groove and is not easy to cause debris accumulation.

5) The valve body is coated with low toxicity powder epoxy resin inside and outside to enhance its ability and improve the quality of water supply.

6) Embedded copper nut, not easy to loosen or damage.

7) European rubber vulcanization technology, rubber elasticity skills.