你可能感兴趣的试题
gate valve globe valve swing-check valve plug-cock valve
check valve non-return valve steam trap quick closing trap
main stem stop valve auxiliary steam stop valve feed check or control valve blow down valve
main stem stop valve auxiliary steam stop valve feed check or control valve blow down valve
main steam stop valve auxiliary steam stop valve feed check or control valve blow down valve
gate valve globe valve check valve plug cock
trap regulating valve check valve filter
bottom-blow valve skin valve feed-check valve feed-stop valve
main stem stop valve auxiliary steam stop valve feed check or control valve blow down valve
the direct acting relief valve is used for controlling lower flows and pressure the pilot operated relief valve is used for controlling higher flows and pressure the pilot operated relief valve is used for controlling lower flows and pressure the controlling accuracy of direct acting relief valve is worse than that of the pilotoperated relief valve
a check valve a gate valve a pressure reducing valve a quick closing valve
A gate valve A globe valve Any check valve Any needle valve
regulate the fluid flow in either direction restrict movement of hydraulic fluid in one direction, but allow free movement inthe other direction allow free movement of hydraulic fluid in both directions allow a restricted fluid flow in one direction only
stop-check valves installed in the bilge manifolds using a positive displacement reciprocating bilge pump installing eductors in all bilge rose boxes installing a swing check before each bilge valve
the air start valve timing gears and rods a cylinder check valve individual cams and valve gear an air manifold poppet valve
assist in a quick cutoff of fuel injection allow oil backflow from the injector to the helix reduce fuel oil pressure between injection strokes meter the quantity of fuel delivered
a test valve an inspection valve a stop valve a non-return valve
Relief valves Check valves Safety valves Reducing valve
control the back pressure of return oil lock the oil lines under some conditions change the direction of oil flow act as relief valve
safety valve blow down valve scum valve feed check valve
湘公网安备 43130202000226号