The back pressure retention valve type DHVK II is installed in the dosing line to generate a positive back pressure or as an overflow valve. It is available in PVC, PP, PVDF and stainless steel with PTFE diaphragms, EPDM/FPM seals. The opening pressure is 2 bar, adjustable up to 5/6 bar or in HD version up to 10/12 bar.

Back pressure retention valves