Product Overview
The CKD AMD21-6-2 is a pneumatically actuated process valve engineered for the precise control of chemical liquids and high-purity fluids in industrial systems. Manufactured by CKD Corporation, a globally recognized leader in fluid control technology, this air-operated valve utilizes a compressed air pilot signal to drive an internal diaphragm or piston actuator, which in turn opens or closes the primary fluid passage. Unlike hydraulic pumps that generate flow, this component functions strictly as a control element, providing reliable on/off isolation or directional routing of aggressive chemical media. Its design emphasizes chemical compatibility, bubble-tight sealing, and rapid response, making it an essential component in automated process lines where manual intervention is impractical or unsafe.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Air Operated Chemical Liquid Valve (Pneumatic Process Valve) |
| Model Designation | AMD21-6-2 |
| Operating Pressure | Standard Industrial Grade (Up to rated bar for chemical process lines) |
| Mounting & Connection | Standard ISO / Manufacturer Interface (Threaded or Flanged Process Connection) |
| Actuation Method | Pneumatic (Air Pilot) with Spring Return or Double Acting Configuration |
| Body & Seal Material | Corrosion-Resistant Body with Chemical-Grade Elastomeric Seals (PTFE / FKM options) |
Engineering Features & Advantages
- Precision Performance: The pneumatic actuator delivers consistent, repeatable stroke action for precise on/off control, minimizing water hammer and ensuring accurate dosing or isolation of chemical liquids.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with a robust valve body and actuator assembly designed to withstand aggressive chemical exposure and cyclic duty.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM standards, ensuring seamless integration into existing CKD or equivalent process manifolds without modification.
- Chemical Compatibility: Wetted parts are selected for resistance to acids, bases, solvents, and high-purity fluids, preventing contamination and extending service life.
- Fast Response: Optimized air pilot design enables rapid opening and closing times, critical for automated batch processing and safety interlock systems.
Typical Industrial Applications
This air-operated chemical liquid valve is widely deployed in semiconductor wet processing equipment, chemical dosing and blending systems, pharmaceutical and biotechnology fluid handling, and industrial wastewater treatment plants. It is also commonly found in automated paint and coating supply lines, laboratory chemical distribution networks, and cooling tower chemical injection skids where precise, remote-controlled isolation of aggressive media is required.
PRODUCT IMAGES
CKD AMD21-6-2 Air Operated Chemical Liquid Valve
âš¡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine CKD AMD21-6-2 Solenoid Directional Control Valve. This Japan-made 24V DC hydraulic component features a 4-way 2-position spool design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.