a closeup view of a rusty, metal valve cover. the cover is d like an arch and has a small opening.

background icon vector water technology house home white box energy metal industry engineering number yellow tool plastic repair device mechanical system instrument plumbing faucet equipment valve industrial pipeline sanitary tap pipe pressure measurement consumption flow scale sewer sewerage outdoors gauge meter closeup cold control rusty cover arch weathered worn view cover shaped like small opening heavily rust shows signs wear tear