Product Overview
The CKD AMD522-15AU-0A-4 is a pneumatically actuated chemical liquid valve engineered by CKD Corporation for precise, contamination-free control of aggressive and high-purity process fluids. Operating on an external air pilot signal, the valve uses a balanced piston or diaphragm actuation principle to open and close the fluid passage without exposing the medium to the solenoid or electrical components. This air-operated, normally closed configuration is purpose-built for chemical dosing, transfer, and shut-off duties in wet-process semiconductor, chemical, and industrial fluid handling systems. Its isolation-style design ensures the wetted path remains compatible with corrosive chemistries while delivering reliable, repeatable sealing performance across demanding process cycles.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Air Operated Chemical Liquid Valve (Process & Pneumatic Valve) |
| Model Designation | AMD522-15AU-0A-4 |
| Manufacturer | CKD Corporation |
| Actuation Type | External Air Pilot (Air Operated) |
| Valve Configuration | 2-Port Isolation / Shut-Off Style |
| Port Size | 15A (Nominal 1/2 in.) |
| Operating Pressure | Standard Industrial Grade (Up to rated process bar) |
| Pilot Air Pressure | Standard pneumatic supply range (approx. 0.3–0.7 MPa) |
| Wetted Body Material | Chemical-resistant resin / corrosion-resistant construction |
| Seal Material | Chemical-compatible elastomer (e.g., PTFE / FKM class) |
| Mounting & Connection | Standard ISO / Manufacturer Interface |
Engineering Features & Advantages
- Precision Performance: Air-pilot actuation delivers fast, consistent open/close response with accurate flow control and minimal water hammer, ensuring repeatable metering in chemical dosing lines.
- Chemical Isolation Design: The wetted fluid path is fully separated from the pneumatic actuator, preventing chemical attack on internal pilot components and eliminating cross-contamination risk.
- Industrial Reliability: Designed for dependable long-term operation in demanding industrial environments, with quality bearings and sealing systems ensuring extended maintenance intervals.
- Direct Fit Replacement: Precision-manufactured to original CKD specifications for direct replacement, minimising downtime and eliminating fitment issues.
Typical Industrial Applications
This air-operated, normally closed configuration is purpose-built for chemical dosing, transfer, and shut-off duties in wet-process semiconductor, chemical, and industrial fluid handling systems.
PRODUCT IMAGES
CKD AMD522-15AU-0A-4 Air Operated Chemical Liquid Valve
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- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
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- Peace of Mind: Covered by our 12-Month Replacement Warranty.
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