Media Type

Water, seawater, air, natural gas, steam, oil products, slurry, mud and other media

Application field

Water conservancy and hydropower engineering:

Hydroelectric power station: The inlet of the turbine is quickly cut off to prevent water hammer effect; Check the tail water pipe to prevent backflow and impact on the unit.

Water transmission project: Check the outlet of the pump station of long-distance water transmission pipelines (such as the South to North Water Diversion Project) to prevent medium backflow when the pump stops.

Flood control and waterlogging drainage: at the outlet of the urban drainage pump station, it can be quickly opened and closed to control flood discharge in case of a rainstorm, and automatically closed to prevent backflow in case of power failure.

Oil and Natural Gas:

Oil/gas pipelines: prevent reverse flow of crude oil or natural gas during pump station shutdown, ensuring stable pipeline pressure.

Storage and transportation system: At the connection of the oil depot loading and unloading arm, the medium transportation can be quickly cut off in emergency situations.

Offshore platform: seawater injection system to prevent backflow and adapt to high salt spray corrosion environment.

Chemical and Metallurgical:

Corrosive medium transportation: The outlet pipeline of the acid-base storage tank is used to prevent chemical liquid from flowing back and causing uncontrolled reactions.

Blast furnace cooling system: Check the circulating water pipeline to avoid equipment damage caused by high temperature due to backflow of cooling water.

Slurry processing: The pipeline for transporting mineral slurry in mines is designed to be wear-resistant to cope with particle erosion.

Municipal and Environmental Protection:

Sewage treatment plant: Lift the pump station outlet to prevent sewage from flowing back and polluting the front-end system.

Water treatment plant: Prevent water flow from reversing and impacting the water pump when the pump is stopped in the water supply network.

Thermal network: Central heating system circulation water check to avoid heat loss.

Electricity and Energy:

Thermal power plant: anti backflow of circulating cooling water system, protection of boiler feedwater pipeline.

Nuclear power plant: The emergency cooling system is quickly isolated and meets the requirements of nuclear safety level (Class 1E).

New energy: High temperature water/steam pipeline control for geothermal power plants, with excellent temperature resistance performance.