Product Overview
The FUJIKIN FBDCL-AD01-6.35X2C-2B3-316LP-KDY (Part No. 766-077821-501) is an ultra-pure diaphragm valve engineered for high-purity fluid and gas handling in semiconductor, pharmaceutical, and advanced process industries. Manufactured by Fujikin, a global leader in ultra-high-purity (UHP) fluid control technology, this valve utilizes a flexible diaphragm as the sealing and actuating element, isolating the process media from the valve bonnet and actuator assembly. This design eliminates dead volume, prevents particle entrapment, and ensures zero external leakage, making it ideal for critical process lines where contamination control is paramount. The valve is constructed from 316L low-sulfur stainless steel (316LP) with a 6.35 mm (1/4 in) tube connection, and features a 2-way normally closed (2C) configuration with a KDY actuator interface. It serves as a precision shut-off and control component in gas delivery panels, chemical distribution systems, and high-purity water circuits.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Ultra-Pure Diaphragm Valve (Process & Pneumatic Valve) |
| Model Designation | FBDCL-AD01-6.35X2C-2B3-316LP-KDY / 766-077821-501 |
| Operating Pressure | Standard Industrial Grade (Up to rated bar; typical UHP diaphragm valve range 0–1.0 MPa) |
| Mounting & Connection | 6.35 mm (1/4 in) Tube Weld / Compression Fitting; Standard Fujikin UHP Interface |
| Body Material | 316L Low-Sulfur Stainless Steel (316LP) – Electropolished |
| Diaphragm Material | High-Purity PTFE / PFA (Media-Isolated) |
| Actuation Type | Pneumatic (KDY Actuator Interface) |
| Flow Configuration | 2-Way Normally Closed (2C) |
| Surface Finish | Ra ≤ 0.25 µm (Internal Wetted Path) |
Engineering Features & Advantages
- Precision Performance: The diaphragm sealing mechanism provides bubble-tight shut-off with zero dead volume, ensuring complete evacuation and preventing cross-contamination in ultra-pure gas and chemical delivery systems.
- Industrial Reliability: Constructed from 316L low-sulfur stainless steel with an electropolished wetted path, the valve resists corrosion, minimizes particle generation, and supports continuous operation under severe high-purity process conditions.
- Direct Fit Replacement: Precision-manufactured to original FUJIKIN specifications for direct replacement, minimising downtime and eliminating fitment issues.
Typical Industrial Applications
It serves as a precision shut-off and control component in gas delivery panels, chemical distribution systems, and high-purity water circuits.
PRODUCT IMAGES
FUJIKIN FBDCL-AD01-6.35X2C-2B3-316LP-KDY / 766-077821-501 Ultra-Pure Diaphragm Valve
⚡ 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 FUJIKIN FBDCL-AD01-6.35X2C-2B3-316LP-KDY / 766-077821-501 Solenoid Operated Diaphragm Valve. This Japan-made 24V DC hydraulic component features a 2-way normally closed design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.