Magpie Valve Selection: Accurate Matching Ensures Reliable Control
Valve Technology Sharing
Exploring Specialized Solenoid Valves for Gas Generator Sets: Full-Bore Coverage with 90% Energy-Saving Dual-Power Technology
This series of gas solenoid valves offers full-bore coverage across key sizes: 50mm, 80mm, 100mm, 125mm, 150mm, 200mm, 250mm, 300mm, 350mm (flagship model), and 400mm (custom). These are solenoid valves designed to handle flow requirements from mid-sized (hundreds of kW) to megawatt-scale generator sets, with single-valve capacity exceeding 5000 m³/h.
350mm Valve: Optimized for mainstream large-scale gas generator sets.
400mm Custom Valve: Field-tested for ultra-high flow demands in extra-large generators.
Default State: Spring-loaded shut-off ensures tight sealing when power is off, cutting off gas supply in line with fail-safe standards.
Operating State: Upon power-on, electromagnetic force overcomes spring and medium pressure, opening the valve in ≤50 ms for immediate gas delivery at generator startup.
Opening Phase (3–5 seconds): High-power (200–300W) excitation provides strong electromagnetic force to overcome static friction and gas pressure, ensuring full, fast opening with no startup delay.
Holding Phase: Once open, the intelligent controller switches to 1/10 rated power (20–30W) to maintain position, significantly reducing energy use compared to conventional full-power solenoids.
Traditional 350mm valve consumes 7.2 kWh/day.
Dual-power model uses only 0.72 kWh/day — saving over ¥6000/year at ¥1/kWh.
Integrated Intelligent Power Module: Equipped with current sensor and control chip for precise position detection and seamless power switching.
Dual-Coil Design: Separate opening and holding coils optimize performance and minimize heat risk, unlike traditional single-coil models.
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Demand Dimension |
Product Solution |
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High-Flow Stability Control |
Ultra-large diameter valve body + streamlined valve core design, pressure drop ≤0.5 bar, ensuring pressure fluctuation <±3% at high flow rates, suitable for unit variable load operation (e.g., peak regulation, frequent start-stop scenarios). |
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Safety and Reliability |
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Energy Saving and Maintenance Cost |
90% energy consumption reduction + low heat generation design, reducing heat dissipation load in unit cabins; no complex electric control components, maintenance cycle extended to over 2 years (traditional valves require annual coil temperature rise inspection). |
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Fast Response Requirement |
Spring reset speed ≤30ms after power loss, can cooperate with unit safety systems to achieve "second-level cutoff" in emergencies, meeting gas leak protection requirements. |
Scenario 1: 5MW Natural Gas Generator Set (350mm Valve)
Requirements: 3000 m³/h intake, 0.3 MPa inlet pressure, frequent start/stop (5–8 times daily).
Results: Power consumption dropped from 12,000 kWh/year to 1,200 kWh; no delay during actuation, 95% improvement in operational stability.
Scenario 2: Biogas Generator Set (400mm Custom Valve)
Challenge: High sulfur content causes corrosion under continuous high-load operation.
Custom Solution: Upgraded to 316L stainless steel with sulfur-resistant fluororubber diaphragm; energy-saving design reduces heat, extending valve life from 1 to over 3 years.
Size: Match generator's peak intake volume
Inlet Pressure: 0.1–1.0 MPa standard range
Gas Type: Ensure compatibility for natural gas, biogas, or coalbed methane
Install valve horizontally with coil upright to prevent condensate ingress
Add inlet gas filter (≥50 μm) to prevent jamming
Use inlet/outlet pressure sensors to enable real-time PLC-linked shutdown for overpressure/underpressure protection
With extra-large size range, dual-power energy-saving control, and robust intrinsic safety features, this solenoid valve series delivers reliable, efficient, and precise gas flow control for generator sets. It is especially suited for industrial/commercial applications with high energy sensitivity and continuous operation requirements.
