Woodward 8440-1855K High Vibration Version Proportional Gas Valve

Product Brief Introduction Heavy-duty vibration-resistant proportional gas valve with LVDT closed-loop feedback, optimized for engine environments with strong mechanical vibration.
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Technical Specifications Supply voltage:24 V DC ±10%; Control input:4–20mA; Position feedback:4–20mA; Operating pressure:0.5–11 bar(g); Operating temperature:-35 °C ~ +125 °C; Enclosure:IP65; Vibration withstand:25g peak.

Functional Features Enhanced anti-vibration mechanical structure; closed-loop LVDT position feedback; low friction moving assembly; full shutoff; wide temperature range.

Application Scenarios Heavy-duty gas engines, engine direct-mounted fuel control, field compressor engines, high vibration cogeneration units.

Performance Parameters Flow linearity:±2.2% FS; Repeatability:±0.8% FS; Response time:<22 ms.

Material Composition Reinforced aluminum valve body; hardened stainless steel plunger; FKM high temperature seals; reinforced solenoid assembly.

Structural Characteristics Inline flow structure; reinforced top electronic housing; anti-loose fasteners; threaded process ports.

Working Principle Same closed-loop position control principle as 8440-1855F, with mechanical reinforcement of moving parts and fasteners to resist engine vibration without position drift.

Installation Requirements Mount inline vertically; tighten all fasteners to specified torque; use shielded analog wiring; calibrate zero and span after installation.




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