Solenoid Valve For Air Compressor

1. Product Overview

This air compressor solenoid valve is a core pneumatic control spare part specially developed for industrial screw air compressors, piston compressors and compressed air dryers. It converts electrical control signals into mechanical airflow switching to realize automatic load-unload regulation, shutdown blowdown, intake air path control and system overpressure protection.

All valves are manufactured strictly following OEM dimensional standards, fully interchangeable with original solenoid valves of major compressor brands. Adopting premium brass valve body, Class F fully insulated copper coil and oil-resistant composite sealing components, the valve maintains stable performance under long-cycle high-pressure, high-temperature and oil-mist working conditions, effectively reducing equipment failure rate and maintenance downtime.

2. Core Functions Inside Air Compressor System

1. Load & Unload Regulation Cooperate with pressure sensor to automatically cut off or restore air intake, stabilize tank pressure, avoid frequent motor start-stop and cut down power consumption.

2. Shutdown Blowdown Protection Release residual high-pressure air inside the unit during shutdown to prevent high-pressure backflow damage to intake valve and screw host.

3. Pilot Air Circuit Control Drive the opening/closing of intake valve, minimum pressure valve and temperature bypass valve through pilot compressed air.

4. Safety Interlock Control Cut off air supply automatically when abnormal pressure or overheating occurs to protect the whole compressor set.

3. Key Product Features

1. Premium Corrosion-Resistant Valve Body Forged brass / stainless steel valve body with polished internal flow channel, low pressure loss, anti-rust and anti-condensate corrosion, service life over 500,000 switching cycles.

2. Full-Sealed High-Stability Coil Class F insulation pure copper coil with epoxy potting, anti-electromagnetic interference, anti-high temperature aging; multiple voltage options: DC12V/24V, AC110V/220V/380V.

3. Oil & Heat Resistant Sealing Assembly Viton/NBR composite seal rings, resistant to compressor lubricant oil, high temperature and aging, realize near-zero air leakage under rated working pressure.

4. Rapid & Consistent Actuation Direct-acting / pilot-operated optional structure, response time ≤30ms, no delayed switching leading to pressure fluctuation.

5. IP65 Protection Grade Dustproof, waterproof and oil mist resistant coil housing, adapt to harsh industrial production environments.

6. Plug-and-Play OEM Replacement Standard thread connections (G1/4, G1/2, G3/4), unified mounting bracket size, directly replace original spare parts without pipeline refitting.

4. Standard Technical Specifications

5. Wide Application Range

· Fixed speed & VSD variable frequency screw air compressors (Atlas Copco, Sullair, CompAir, Kaeser, Ingersoll Rand etc.)

· Reciprocating piston air compressors

· Compressed air dryers, precision filters and air storage tank control systems

· General industrial pneumatic automatic control pipelines

6. Packaging & After-Sales Service

· Single independent anti-collision plastic bag + carton outer packaging, avoid damage during sea/air transportation

· 12-month factory warranty against manufacturing defects

· Support bulk wholesale, OEM custom logo, customized voltage and thread size

· Global shipping available, fast lead time for spot stock orders

7. Common Faults Solved By This Valve

· Original valve core stuck, unable to unload leading to overpressure alarm

· Sealing aging causing continuous air leakage, increased power consumption

· Coil burnout leading to compressor cannot start normally

· Slow response causing unstable air pressure and fluctuating production equipment operation