drain valve

engine thermostat housing drain valve

storm drain

air trunk drain tubes

drain bole

drain connection

drain sample

filling and drain plug

injector drain pipe

overboard drain port

sump drain

air drain

drain tube

drain

bilge drain

check valve / non-return valve

non-return valve / check valve

air valve bank

amplifying valve

directional-control hydraulic valve

fuel needle valve

inlet valve

vent valve

valve rocker shank

fuel tank selector valve

fuel-return valve (FRV)

oil cooler bypass valve

slave valve

valve chatter

adjustable valve

air breed valve

air input valve

air slide valve