https://buildings.honeywell.com/gb/en/products/by-category/building-management/field-devices/valves/gate-valves/m-cvdf-f-series-rubber-flap-check-valve
M-CVDF..F Series Rubber-Flap Check Valve,|Honeywell Building Automation
M-CVDF...F series rubber flap check valves are primarily used in HVAC and water supply systems to prevent backflow of media.
rubber flap check valvehoneywell buildingseries