VQ21A Series 2 Port Pilot Operated Solenoid Valve – For Dry Clean Air

Brand: SOLH by Richge Technology

1. Product Positioning

     SOLH VQ21A series is a pilot-operated 2-port solenoid valve exclusively developed for dry compressed air circuits to realize air circuit on-off control. It integrates ultra-fast response, large flow capacity, extended service life and mini lightweight outline. This dedicated control component is ideal for dry air systems, air blowing, exhausting and purging industrial working conditions.

2. Core Key Features

--Optimized for Dry Clean Air & Oil-Free Circuits

     Internal structure and sealing materials are specially customized for dry compressed air. It matches oil-free clean air supply systems to deliver stable consistent performance and greatly prolong service lifespan.

--Pilot Drive Design with Stable Low-Pressure Startup

     Operates smoothly under low inlet pressure and remains functional even with fluctuating air source pressure. Features fast response speed, low coil power consumption and smooth switching action.

--Compact Lightweight Body with High Flow Capacity

     Small size and light weight occupy minimal installation space. Optimized internal flow channels offer outstanding flow capacity to satisfy high-volume exhausting and air blowing demands.

--Ultra-Fast Response & Continuous High-Frequency Operation

     Extremely short response time supports sustained high-cycle switching, perfectly suited for high-speed purging, fluid jetting and intermittent pulse control applications.

--Integrated One-Touch Push-In Fittings for Simplified Piping

     Comes with factory pre-installed integrated quick connect fittings. Tubing can be plugged directly without extra adapters, drastically cutting assembly and maintenance time on site.

--Long Service Life & Lubrication-Free Operation

     Premium elastic sealing construction eliminates the need for lubricating oil, maintaining clean and eco-friendly air loops with stable long-term operation and low failure rate.

--IP65 High Protection Grade & Strong Environmental Adaptability

     Dustproof and drip-proof structure resists oil contamination and mechanical vibration, reliable for general automation equipment and harsh industrial workshop environments.

--Tool-Locked Optional Manual Override

     Tool-locked manual button is available for equipment debugging, routine inspection and emergency manual switching, improving operation safety and convenience.

3. Full Technical Specifications

     --Port Layout: 2-port, 2-position single solenoid

     --Operating Type: Pilot Operated

     --Applicable Medium: Dry compressed air

     --Working Pressure Range: 0.01 ~ 0.6 MPa

     --Ambient & Medium Temperature: -10℃ ~ +50℃

     --Response Time: ≤7 ms

     --Quick Connect Sizes: φ6 / φ8 push-in fittings (C6 / C8)

     --Seal Type: Elastic rubber seal

     --Lubrication Requirement: Lubrication-free

     --Manual Operation: Optional tool-locked manual override

     --Available Coil Voltages: DC12V / DC24V, AC100V / AC110V / AC200V / AC220V

     --Protection Rating: IP65 dustproof & drip-proof

     --Mounting Options: Individual single mount / manifold stack mount

4. Typical Application Scenarios

     --On-off control for dry air pipelines and clean oil-free air supply systems

     --Workpiece purging, dust removal, air cooling and exhaust control circuits

     --Automated machinery for packaging, electronics, printing and food processing

     --Pneumatic loops requiring ultra-fast response, large flow, long service life and compact installation footprint

One Sentence Summary

     SOLH VQ21A pilot-operated 2-port solenoid valve dedicated for dry air delivers ultra-fast ≤7ms response, large flow, compact lightweight design, integrated push-in fittings and maintenance-free performance, serving as an efficient on-off control solution for all dry clean air circuits.