Aircraft solenoid valve V4000 series

for fuel2-waynormally closed

Very Fast Response Reliable Actuation Leakproof Service HI-RESPONSE — Total opening or closing response times as short as 8 milliseconds. (See page 4.) RELIABLE ACTUATION — Interlocked action assures positive actuation even with zéro pressure. LEAKPROOF SERVICE in vacuum or pressure — unique design of poppet provides virtually deadtight shutoff. CONTROL FOR MOST FLUIDS — Available for use with many exotic gaseous and liquid media, including most propulsion fluids. FULL FLOW—Orifice is larger than port size, permits full flow with very low pressure drop. ELECTRICAL ADAPTABILITY — Standard valves furnished with 24v DC coils and pigtail connections. Coils are inter-changeable to obtain other voltages, duty cycles, and connections. SHOCK- AND VIBRATION-PROOF — Poppet will remain in fully opened or closed position despite severe shock and vibration. OPERATING TEMPERATURES — From -65°F to +160°F, ambient and fluid temperatures. Spécial units available for use at extreme temperatures. CLOSED (Coil de-energized) Pressure reaches area above poppet through fill orifice. System pressure is applied above poppet. Added to pressure of spring, this holds poppet and pilot firmly closed. OPENING (Coil energized) Energized coil pulls armature and Interlocked poppet up. Upper area pressure is dumped through pilot slots and bleed orifice. Pressure above poppet drops to less than inlet pressure. Differential quickly opens poppet