Woodward 8440-1884M Multi-Fuel Proportional Gas Valve

Product Brief Introduction Multi-fuel proportional gas valve, compatible with natural gas, biogas, propane mixed gas, with LVDT closed-loop position feedback.
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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:-30 °C ~ +120 °C; Enclosure:IP65.

Functional Features Adapt multiple fuel gas types; closed-loop LVDT feedback; replaceable valve trim; linear flow curve; full shut-off.

Application Scenarios Multi-fuel switchable gas engine, biogas/natural gas dual fuel generator set, waste gas recovery power generation equipment.

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

Material Composition Aluminum valve body; stainless steel interchangeable trim; FKM seals; LVDT sensor; solenoid assembly.

Structural Characteristics Inline flow body; top solenoid and sensor assembly; replaceable internal valve trim structure.

Working Principle 4–20mA signal controls target opening. LVDT feeds plunger position back to control circuit to adjust solenoid force, realizing stable flow control for different fuel gas.

Installation Requirements Install inline; configure fuel type parameter on controller; calibrate zero and span after fuel switch.




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