The product does only allow media flow in one direction, they are commonly referred to as 'one-way valves or 'nonreturn valves. The main purpose of a check valve is to prevent backflow in the system.

Horizontal check valves are used primarily for air, gas, and steam services whilst swing check valves are most suitable for water and other liquids. For air, gas, and low-pressure applications, especially where bubble-tight closure is required, a valve with a rubber-faced disc is necessary. For additional information regarding the product, please contact the dubby support team.