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Ceramic Valve Disc Manufacturer & Supplier - 吉峰陶磁器

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Ceramic Valve Disc
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Ceramic Valve Disc

Precision ceramic valve discs are made from high-purity alumina (Al₂O₃ ≥99%) or zirconia (Y-TZP) ceramic. They are white round discs with mirror-smooth surfaces (Ra ≤ 0.05μm). The center features precision raised structures, and two symmetric fluid through-holes (Φ1–3mm) are located at the edges. With ultra-high precision sealing, extreme chemical resistance, and zero contamination, they are widely used in semiconductor, pharmaceutical, chemical, and high-purity fluid control systems.

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  • Technical Specifications

主な利点

✅ Precision Sealing & Flow Control

Zero-leakage sealing: Central raised sealing ring with nano-polished surface, contact ratio >99.5%, leakage rate <0.001mL/min, compliant with ISO 15848.

Dual-hole high-efficiency flow guiding: Symmetric through-holes, uniform flow +30%, pressure loss -20%, suitable for high-viscosity liquids (photoresist, vaccine stock solution).

✅ Extreme Environment Resistance

Full chemical inertness: Resists HF (<5%), concentrated H₂SO₄ (95% @200°C), organic solvents (acetone, DMSO); service life 15× stainless steel.

Particle erosion resistance: Surface hardness 8× tool steel, resistant to SiC/Al₂O₃ particle erosion.

✅ Cleanliness & Reliability

Zero contamination: No metal ion leaching, ISO Class 3 cleanroom certified for semiconductor gas (N₂, Ar) delivery.

Excellent thermal shock resistance: ΔT ≥300°C, withstands CIP/SIP steam shock.

ParameterAlumina Valve ChipZirconia Valve Chip
材料99% Al₂O₃Y-TZP ZrO₂
サイズΦ30×5mm (customizable)Φ25×4mm (customizable)
Pressure Resistance80MPa (static)100MPa (dynamic)
Max Temp600℃400℃
Suitable MediaStrong acid/alkali, high-purity fluidChlorine media, biological liquid
CertificationsSEMI F20, FDA 21 CFRSEMI F20, FDA 21 CFR

 

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