Butterfly type slow-closing check valve, slow-closing check valve, butterfly type check valve, check valve

Overview of the Butterfly Slow-Closing Check Valve Product:

The butterfly slow-closing check valve is mainly composed of the valve body, butterfly plate, counterweight, buffer device and other components. It is installed at the outlet of the water pump and is driven to open by the medium pressure. During normal or abnormal shutdown of the pump, the butterfly plate is pushed closed by its own weight and the reverse flow pressure of the medium. It first closes most of the stroke quickly, and then uses the damping effect of the buffer device to slowly close the remaining stroke. This prevents destructive water hammer from occurring and participates in controlling the reverse rotation speed of the pump. The butterfly plate component of this valve is divided into two steps of quick and slow closing, achieving the effect of preventing reverse flow and weakening water hammer. The slow-closing device is installed outside the valve body and uses non-pipeline media as the damping medium. During shutdown, it first closes 75% to 90% of the stroke quickly, and then slowly closes 25% to 10% of the stroke. The slow-closing time can be adjusted within 120 seconds. 

Advantages of the butterfly slow-closing check valve product:

The butterfly slow-closing check valve product features a novel structure, small size, light weight, low fluid resistance, smooth operation, reliable sealing, good wear resistance, and excellent buffering performance. It is mainly used in industrial water supply and wastewater treatment plants, at the pump outlet of the water pumps, to prevent the reverse flow of medium in the pipeline network, automatically eliminate destructive water hammer, thereby ensuring that the pumps and pipelines are not damaged.

Application:

The butterfly type slow-closing check valve product features a novel structure, small size, light weight, low fluid resistance, smooth operation, reliable sealing, good wear resistance, and excellent buffering performance. It is mainly used in industrial water supply and wastewater treatment plants, at the pump outlet of the water pumps, to prevent the reverse flow of medium in the pipeline network, automatically eliminate destructive water hammer, thereby ensuring that the pumps and pipelines are not damaged.

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