Technical Specifications Supply voltage: 24 V DC ±10%; control input: 4–20 mA analog; flow range: 0–19 kg/h natural gas typical; operating pressure: 0.5–10 bar(g); operating temperature: -30 °C to +120 °C; enclosure rating: IP65; response time: < 15 ms.
Functional Features Proportional flow control; near-linear flow characteristic; fast actuation; zero gas shutoff at zero signal; overpressure resistant; vibration-resistant design.
Application Scenarios Industrial gas engine fuel control, generator set load governing, biogas engine air/fuel control, cogeneration engine gas metering, throttle body replacement.
Performance Parameters Flow linearity: ±3% full scale; repeatability: ±1% FS; leakage: < 0.5% of full flow; step response time: < 15 ms for 100% step.
Material Composition Aluminum valve body; stainless steel plunger and seat; NBR seals; copper solenoid coil; stainless steel return spring.
Structural Characteristics In-line flow body; top-mounted solenoid assembly; side inlet/outlet ports; threaded process connections; top-mounted electrical connector.
Working Principle The 4–20 mA control signal varies current through the solenoid coil, creating proportional magnetic force that lifts the plunger against spring force, modulating gas flow area proportionally to the input signal.
Installation Requirements Install inline with gas flow direction matching body arrow; mount upright with solenoid on top; connect control signal and power wiring; calibrate zero and span during commissioning.
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