Heavy hammer type liquid control slow-closing check valve, slow-closing check valve, butterfly valve

Structural Characteristics of Liquid-Controlled Slow-Closing Check Valve 

The valve operates according to the program and can automatically close in two stages (fast and slow) at the predetermined time and angle in both normal power supply and sudden power outage situations. The opening time of the valve, as well as the angles and times for quick and slow closures, can all be adjusted as needed to ensure strong adaptability. 

2. Eliminate destructive water hammer and prevent runaway accidents in water turbines and pump sets, ensuring the safety of equipment and the reliable operation of the system. 

3. This valve can replace the functions of the original electric gate valve and check valve at the pump outlet. By using one valve instead of two, it reduces the floor space and investment.

Application

The heavy-weight hydraulic control self-closing check butterfly valve is mainly used in hydropower stations, water supply pump rooms, as well as in various pump stations in industries such as power, petroleum, chemical, metallurgy, mining, etc. It is installed at the inlet of the water turbine or the outlet pipe of the water pump to be used for closing, backflow prevention, and regulating flow. The valve is available in both heavy-weight type and accumulator type for selection.

The potential energy characteristic of the heavy hammer type liquid-controlled slow-closing check valve has a higher safety factor compared to other liquid-controlled valves. It combines the functions of a gate valve and a check valve. The valve opens as the heavy hammer is lifted and remains in a fixed potential energy state. When the oil pump motor set malfunctions or experiences a power outage, the heavy hammer slowly descends under the force of gravity to close the valve. It is mainly installed at the water intake of hydropower stations and water turbines, serving as an inlet valve for water turbines or installed at the pump outlets of various pump stations in water conservancy, power, water supply and drainage, etc., where higher safety requirements exist. The heavy hammer type liquid-controlled slow-closing check valve consists of six major parts: the butterfly valve, the transmission system, the hydraulic station, the heavy hammer energy storage mechanism, the locking device, and the electrical control system. 

Product parameters

Packing of Standard Packing: 

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 470 gallon liquid totes Special package is available on request. E FORUs’  is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.