Woodward 8440-2052 Compact 4-20mA Proportional Gas Valve

Product Brief Introduction Compact size analog proportional gas valve with LVDT feedback, for small footprint engine control cabinet and small gas gensets.
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Technical Specifications Supply voltage:24 V DC ±10%; Control signal:4–20mA; Position feedback:4–20mA; Operating pressure:0.3–8 bar(g); Operating temperature:-30 °C ~ +115 °C; Enclosure:IP65.

Functional Features Compact dimension; closed-loop LVDT feedback; low power consumption; linear flow curve; zero shutoff.

Application Scenarios Small gas generator, packaged cogeneration unit, compact engine control cabinet, mobile gas power equipment.

Performance Parameters Flow linearity:±2.2% FS; Repeatability:±1% FS; Response time:<20 ms.

Material Composition Miniature aluminum valve body; stainless steel plunger; FKM seals; compact LVDT sensor; small solenoid coil.

Structural Characteristics Small inline valve body; compact top solenoid and sensor assembly; compact threaded process ports.

Working Principle 4–20mA analog signal defines target opening. LVDT feeds back plunger position, control circuit adjusts solenoid current to maintain required opening.

Installation Requirements Install inline; reserve enough installation space; connect analog signal and power; perform calibration.

Usage Notes Check gas medium cleanliness; protect compact electronic part from mechanical impact.




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