Woodward 8440-2080 4-20mA Proportional Gas Valve, High Temperature Version

Product Brief Introduction High temperature rated analog proportional gas valve with LVDT closed-loop feedback, suitable for high ambient temperature engine compartment.
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Technical Specifications Supply voltage:24 V DC ±10%; Control signal:4–20mA; Position feedback:4–20mA; Operating pressure:0.5–10 bar(g); Operating temperature:-40 °C ~ +130 °C; Enclosure:IP65.

Functional Features Wide high temperature range; high temperature resistant seals; closed-loop LVDT feedback; low thermal drift.

Application Scenarios Engine compartment direct mount, high ambient temperature gas engine, heavy-duty industrial genset.

Performance Parameters Flow linearity:±2.2% FS; Repeatability:±1% FS; Response time:<22 ms.

Material Composition Aluminum valve body; stainless steel internals; high temperature FKM seals; high temperature LVDT and solenoid coil.

Structural Characteristics Inline flow body; high temperature resistant top electronic and solenoid assembly; threaded process ports.

Working Principle 4–20mA control signal sets target opening, LVDT provides real-time position feedback. High temperature material reduces position drift under high ambient temperature.

Installation Requirements Install inline vertically; isolate valve body from excessive radiant heat if possible; calibrate after thermal stabilization.

Usage Notes Do not exceed maximum continuous temperature rating; inspect high temperature seals periodically.




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