Main Fuel Shutoff Valve

fuel inlet line shutoff valve

fuel shutoff valve lever

shutoff valve

automatic fuel shutoff

main tank/ main fuel tank

check valve / non-return valve

non-return valve / check valve

main defense area (line) / main defensive position

main gear box / main rotor transmission

main rotor transmission / main gear box

main-rotor head / main-rotor hub

main-rotor hub / main-rotor head

fuel needle valve

fuel tank selector valve

fuel-return valve (FRV)

fuel discharge valve

fuel valve

fuel shut-off valve

fuel pump main housing

Proton Exchange Membrane Fuel Cell (PEM fuel cell, PEMFC)

air valve bank

amplifying valve

directional-control hydraulic valve

inlet valve

vent valve

valve rocker shank

oil cooler bypass valve

slave valve

valve chatter

adjustable valve

air breed valve

air input valve