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The gate valve is used as a cut-off medium, and the whole flow is straight when it is fully opened. At this time, the pressure loss of the medium is minimal. Gate valves are usually suitable for working conditions that do not need to be opened and closed frequently and keep the gate fully open or fully closed. Not suitable for fine-tuning or throttling use.

Electric valve actuators have special requirements, that is, they must be able to limit torque or axial force. Usually, the valve electric assembly adopts a torque-limiting coupling. When the specifications of the electric device are determined, the control torque is also determined. Generally, run at a predetermined time, the motor will not be overloaded.

Connect the bolt and the block first, then connect it to the penstock and take the nut with it without locking. Check the position of the penstock with the bolts. Then spot weld the block (one or two points to ensure that the bolt and penstock will not fall down when they are removed). Remove …

Installation procedure of penstock with embedded steel plate Read More »

Penstock is widely used in water conservancy and hydropower projects such as pumping station water intake, municipal construction, water supply, and drainage, farmland irrigation, etc. The work is completed with the cooperation of the hoist.

Development of butterfly valves   In the 1930s, the United States invented the butterfly valve, and it was introduced to Japan in the 1950s. It was only widely used in Japan in the 1960s, and it was promoted in China after the 1970s. At present, butterfly valves above DN300 mm have gradually replaced gate valves …

Structure and sealing of butterfly valve Read More »

For a long time, the general gate valves used in the market generally have water leakage or rust. Our company uses European high-tech rubber and valve manufacturing technology to produce elastic seat seal gate valves, which overcomes the defects of general gate valves such as poor sealing and rust. The sealing gate valve uses the compensation function of the elastic gate plate to produce a small amount of elastic deformation to achieve a good sealing effect. The valve has the obvious advantages of light switch, reliable sealing, good elastic memory and service life. It can be widely used as a regulating and intercepting device on the pipelines of tap water, sewage, construction, petroleum, chemical industry, food, medicine, textile, electric power, shipbuilding, metallurgy, energy system, etc.

Y-type filter (YGL-16) manual

The penstock is used to close and open the control facility of the water discharge (discharge) channel. An important part of hydraulic structures can ，be used to intercept water flow, control water level, adjust the flow, discharge sediment, and float, etc. Penstocks are widely used in waterworks, sewage plants, petroleum, chemical, metallurgy, environmental protection, electric power, irrigation and drainage, drainage, ponds and weirs, rivers, and other projects to cut off, adjust flow, and control water level. So how to install and maintain penstocks and hoisting equipment? Let me give you a brief introduction:

What are the classification and structure of the penstock? The penstock is a control facility used to close and open the water discharge (discharge) channel. Gates are an important part of hydraulic structures, which can be used to intercept water flow, control water level, regulate flow, discharge sediment, and float, etc. The following will introduce the classification and structure of the gate in detail;