ft * i£ ^ Technical Design Change 2 Airway flow: 0-1L Per Minute 3 Work pressure : From 0 Mpa--0.025 Mpa 4. Always close type 5. Connected Gate: Dia.5.1 mm, type: IS015170 A3-2.1-sn/K2 1 Insulation Resistance: between coil and frame: 3 Temperature Rise: Max 65 (20 °C DC 5 V testing on 1 S on 5 S off) 4: Lifespan : 200,000 shots ( 20 °C at DC 5 V , 1 S on, 5 S Off ) 5 Coil and lead wire strength : 1 kg Dimension Without Tolerance Weilong Intelligent Technology (Dongguan)Co., Ltd.,

WL171135 Automotive SCR Solenoid Valve Explained A SCR solenoid valve is used in various industries to control NOx emissions. They are critical components in diesel engine systems, such as passenger cars, trucks, and buses in the automotive industry, enabling DEF injection to meet emissions criteria. They are also used in heavy-duty SCR applications such as construction machinery, mining vehicles, and agricultural equipment in different operating conditions to reduce NOx emissions. They are also useful in the marine engine industry due to environmental regulations in the shipping industry. In...

High-temperature durability (exhaust environment) Long lifecycle (millions of cycles) 0 Reliable Performance for Modern Emission Systems

ECU sends electrical signal The ECU monitors engine conditions and sends an electrical signal to the solenoid valve. Electrical current energizes the coil, creating a magnetic field around the core. The magnetic field pulls the plunger upward, lifting it off the seat and opening the valve. Precise Control Enables Efficient NOx Reduction

- generates force - prevent leakage Engineered for Durability and Precision

--- Optimized DEF Dosing Valve for Maximum SCR Efficiency ••- HIGHLIGHTS Accurate DEF dosing improves NOx conversion Optimized fuel efficiency Real-time ECU control compatibility Stable performance under harsh conditions PERFORMANCE METRICS RESPONSE TIME ms Fast & precise dosing ENGINEERED FOR PERFORMANCE. INTEGRATED FOR RESULTS. The WL171131 DEF dosing valve ensures precise urea delivery, maximizing SCR system efficiency and helping you meet the strictest emissions standards with confidence.

QUALITY YOU CAN TRUST 100%FUNCTIONALTESTING before shipment HIGH-TEMPERATUREENDURANCE testing CORROSION & DEF COMPATIBILITY verification LIFECYCLEDURABILITY validation STRICT QC AND TRACEABILITY system RIGOROUS TESTING FOR MAXIMUM PERFORMANCE VIBRATION TESTED TEMPERATURE TESTED LIFECYCLE TESTED Ensures stable performance in high-vibration environments Validated for extreme temperature conditions {-4Q°Cto +12GT) .Villi Endurance tested for long-term reliability (>1000,000 cycles) @ BUILT FOR RELIABILITY IN DEMANDING ENVIRONMENTS <M mZSSL r^| PREMIUM ENGINEERED

i Buyer Checklist rv High durability (1M+ cycles) Cycles Cycles Certified quality h ^ standards Choose Performance, Reliability, and Long-Term Value