The LKC Check Valves are truly on top of the rest. When looking for a sanitary valve to prevent the reverse of flow, the LKC Check Valve is the way to go.
How does it work you ask? The LKC valve opens when the pressure below the valve plug exceeds the combination of the product at hand and then spring pressure above the plug. Then, the valve closes when the combination of product and spring pressure above the valve plug exceeds the pressure below the plug.
The design of the valve body is in two parts that are assembled by the means of a sanitary clamp and is then sealed with a special seal ring. There is a guide disc and four legs guide the spring loaded valve plug with an O-ring seal. LKC-2 has welding ends or Tri-Clamp® connections.