Woodward 8440-2165A Wide Temperature High Precision Proportional Gas Valve

Product Brief Introduction Wide temperature upgraded version of 8440-2165 proportional gas valve, optimized for outdoor and engine compartment high/low temperature environment.
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Technical Specifications Supply voltage:24 V DC ±10%; Control signal:4–20mA; Position feedback:4–20mA; Operating pressure:0.4–10 bar(g); Operating temperature:-40 °C ~ +130 °C; Enclosure:IP65.

Functional Features Wide temperature range; high precision LVDT closed-loop feedback; low thermal drift; low hysteresis; zero shutoff.

Application Scenarios Outdoor packaged gas generator, engine compartment direct mount, extreme ambient temperature cogeneration equipment.

Performance Parameters Flow linearity:±1.9% FS; Repeatability:±0.7% FS; Hysteresis:<0.8% FS; Response time:<20 ms.

Material Composition Aluminum valve body; hardened stainless steel plunger; high temperature FKM seals; wide-temperature LVDT sensor and solenoid coil.

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

Working Principle Closed-loop LVDT position control, upgraded materials reduce thermal expansion and position drift under extreme temperature changes.

Installation Requirements Install inline vertically; calibrate valve after thermal stabilization; route shielded analog wiring.




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