2023-07-10

What are the uses of electric ball valves

Electric ball valves for incompressible fluids. The selection of electric ball valves for incompressible fluids is based primarily on their ability to prevent sudden closure due to reverse flow at closing, resulting in unsustainably high shock pressures. The selection of this type of valve as a low pressure drop valve is usually considered in the second step only. For this electric ball valve, one step is to evaluate the required closing speed and the second step is to select the type of electric ball valve that can meet the required closing speed.

2023-07-10

Electric ball valve practical operation essentials introduction

With the increasing preciousness of energy and serious environmental pollution, energy saving is becoming more and more popular among people, ranging from energy saving of large equipment to heat insulation and energy saving of electric ball valves. How to do a good job of electric ball valve heat insulation and thermal insulation has become an important issue in front of people now. According to the calculation, the annual heat loss of the general dew electric control valve is equivalent to the heat of burning a ton of fuel oil. China's industrial and civil electric control valve tens of thousands, its thermal insulation of good or bad directly affects the safety of the device and heat loss important issues.

2023-07-10

Standard quality of pneumatic gate valve

Pneumatic gate valve:A valve driven by compressed air. Pneumatic gate valve procurement only clear specifications, categories, pressure to meet the procurement requirements, in the current market economy is not perfect. Because the pneumatic gate valve manufacturers in order to product competition, each in the unified design of pneumatic valve ideas, different innovations, the formation of their own corporate standards and product personality. Therefore, in the procurement of pneumatic gate valves to put forward detailed technical requirements, and manufacturers to coordinate to reach consensus is very necessary, as an annex to the pneumatic gate valve procurement contract.

2023-07-10

Pneumatic gate valve structure basic principle overview

Pneumatic gate valve with the help of compressed air driven valve, gate valve closed, the sealing surface can rely only on media pressure to seal, that is, rely on media pressure to the sealing surface of the gate plate to the other side of the valve seat to ensure the sealing surface of the seal, which is self-sealing.

2023-07-10

Pneumatic gate valve performance check and characteristics

Pneumatic gate valve adopts right-angle rotary structure, consisting of v-shaped valve body, pneumatic actuator, positioner and other accessories, with natural flow characteristics close to 100%; double-bearing structure, small starting torque, excellent sensitivity and sensing speed; strong shear resistance.

2023-07-10

Analysis of electric gate valve characteristics

Electric gate valve features: 　　1, electric gate valve is one of the commonly used cut-off valve, mainly used to connect or cut off the medium in the pipeline; gate valve applicable pressure, temperature and caliber range is large, suitable for medium and large diameter pipeline.

2023-07-10

What are the characteristics of electric gate valve in the structure

Electric gate valve and flange gate valve is the same type of valve, by the electric actuator or pneumatic actuator and disconnecting valve two parts, the difference in its closing piece is a valve body, electric gate valve body around the body centerline for rotation to achieve open, close a valve. Electric gate valve in the pipeline is mainly used to do cut off, distribution and change the direction of media flow. Two-piece ball valve, three-piece ball valve, is a new type of valve that has been widely used in recent years. Electric gate valve structural features:

2023-07-10

Introduction to the advantages and disadvantages of pneumatic gate valves

Pneumatic gate valve is the closing member (gate) along the vertical direction of the axis of the channel to move the valve, in the pipeline mainly as a cut-off medium, that is, fully open or fully closed use. In general, the pneumatic gate valve can not be used as a flow adjustment. It can be applied to low temperature pressure can also be applied to high temperature and high pressure, and can be different materials according to the valve. But the pneumatic gate valve is generally not used in the pipeline for transporting slurry and other media.

2023-07-10

Introduction to pneumatic gate valves

Pneumatic gate valve is to use compressed air as the power source, cylinder as the actuator, and with the help of electrical valve positioner, converter, solenoid valve, retention valve and other accessories to drive the valve, pneumatic gate valve to achieve switching or proportional adjustment, receive the control signal of the industrial automation control system to complete the adjustment of pipeline medium flow, pressure, temperature and other process parameters. The pneumatic gate valve is characterized by simple control, fast response, and intrinsically safe, without the need to take additional explosion-proof measures.

2023-07-10

Introduction to the parameters and characteristics of electric ball valves

Electric ceramic ball valve/electric ball valve/electric valve is assembled by two parts: three-stage ceramic ball valve and intelligent adjustment electric actuator. The ball center of the ball valve is all ceramic, and the flow channel is fully lined with wear-resistant ceramic. (its hardness HRA88 or more, second only to diamond) has wear resistance, oxidation resistance and erosion resistance. The stem is finely ground, the surface is treated with anti-corrosion nitriding or quenching, and the built-in cushioning compensation elastic gasket ensures stable and good sealing performance. Especially suitable for polysilicon, magnesium powder, lime, powder, granule media. The working principle of the electric ceramic ball valve is to accept (4~20mA) industrial signals and drive the actuator with a power supply voltage of 220V or 380V to rotate the stem ball center (0-90°) rotation to complete the switch and adjustment.