Electric Soft Sealed Gate Valve
Summary of 1.1 m 2 Electric Soft Sealed Gate Valve
Electric soft sealing gate valves are widely used in water supply and drainage systems, sewage treatment systems, municipal construction and mining, gold treatment, power plants and other industries. The gate valve is made of good ductile iron or carbon steel. It has the characteristics of high strength, light weight and precise geometric size. The gate plate has the function of interchange. It is equipped with spiral bevel gear labor-saving mechanism. One person can switch easily and freely. It can also install open and close indicator column or electric and pneumatic actuator according to user's requirements. Good sealing and rust-proof function, stable and reliable, long service life. Vertical horizontal installation, 1 m 2 electric soft sealing gate valve is widely used in water supply and drainage system, sewage treatment system, municipal construction and mining, gold treatment, power plants and other industries.
Product Name: Flexible Seat Gate Valve:
Model: Large caliber
Caliber: 500-1200mm
Pressure: 1.0-2.5 MPa
Material: Ductile Iron
Material for Main Parts and Components of Electric Soft Sealed Gate Valve
Name material
Valve body ductile iron
EPDM or NBR coated on gate ductile iron
Class 8.8 Inner Hexagonal Bolts
NBR Sealing Ring
Ductile Iron for Valve Cover
Stem stainless steel
Nitrile Butadiene Rubber with "O" Seal Ring
Tin bronze thrust bearing
Bolted stainless steel
Capping ductile iron
Handwheel (transmission cap) cast iron
V. Application of Electric Soft Sealed Gate Valve
Flexible seat gate valves are widely used in water, sewage, construction, petroleum, chemical industry, food, medicine, textile, power, ship, metallurgy, energy systems and other fluid pipelines as regulating and closing devices.
6. Characteristic of Electric Soft Sealed Gate Valve
1. Flat-bottom valve seat, no accumulation of dirt, make the seal reliable.
2. The valve disc is encapsulated with NBR as a whole. The inner parts of the valve are made of corrosion-resistant stainless steel and copper alloy, which can be used for sewage system to adapt to harsh working conditions.
3. Small size, light weight, easy to install and maintain
4. The valve stem is sealed with three O-rings, which greatly reduces the friction resistance of the switch and makes the switch light and water-tight.
7. Advantages of Electric Soft Sealed Gate Valve
When the gate valve with elastic seat closes, the sealing surface can be sealed only by the medium pressure, that is to say, the sealing surface of the gate can be pressed to the seat on the other side to ensure the sealing surface, which is self-sealing. Most pneumatic gate valves are sealed by force, that is, when the gate valve closes, the gate must be forced to the seat by external force to ensure the sealing surface.
When opening the electric gate valve, when the gate lifting height is equal to 1:1 times the gate valve diameter, the fluid passage is smooth, but when running, this position can not be monitored. In practical use, the vertex of the valve stem is used as the sign, that is, the position of the valve stem that is not moving is used as its full open position. In order to consider the lock phenomenon of temperature change, it is usual to turn back 1/2-1 turn at the top position as the position of the fully opened gate valve. Therefore, the full open position of the gate valve is determined by the position of the gate (i.e. stroke). The sealing surface is easy to wear and tear, which affects the service life. When opening and closing, the two sealing surfaces of gate and valve seat are sliding and rubbing with each other. It is easy to cause abrasion and wear under medium pressure, which affects sealing performance and shortens service life.
For a long time, the leakage or rusting of general gate valves has been widespread in the market, which overcomes the defects of poor sealing and rusting of general gate valves. Elastic seat gate valves can achieve good sealing effect by compensating micro-elastic deformation caused by elastic gate plates. They have such remarkable advantages as lightweight switch, reliable sealing, good elastic memory and long service life. It can be widely used in water, sewage, construction, petroleum, chemical industry, food, medicine, textile, power, ship, metallurgy, energy system and other body pipelines as regulating and closing devices. This is the advantage and advantage of elastic seat gate valve.
