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High Wear-resistance Zirconia ZrO₂ Check Valve for Medical Industry

High Wear-resistance Zirconia ZrO₂ Check Valve for Medical Industry

The Zirconia Check Valve is an automatic one-way valve made of high-performance zirconia ceramic material. It integrates the superior wear and corrosion resistance of zirconia (ZrO₂) ceramic with the backflow prevention function of a check valve. Through the precision grinding and mating of the ceramic valve core and seat, this valve achieves a zero-leakage one-way seal and is widely used in industrial fields where the purity, wear resistance, and corrosion resistance of the media are extremely important.

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Strong Corrosion Resistance Zirconia Check Valve

ZrO₂ Check Valve for Medical Industry is a "one-way guardians" for precision fluid systems requiring extremely high cleanliness, strong corrosion, and high reliability. Leveraging the inherent extreme corrosion resistance, wear resistance, and stability of ceramic materials, they solve core pain points in high-end medical, semiconductor, and analytical instrument fields, such as media contamination, corrosion failure, and seal leakage, which traditional valve materials cannot address. They are cornerstone components ensuring the long-term stable and safe operation of critical systems.

 

Core material advantages

Performance indicators Zirconia ceramics Comparative advantages
Hardness HRA 88-90, Mohs hardness >8.5 Second only to diamond, and 12 times more wear-resistant than stainless steel.
Fracture toughness 7–10 MPa·m^0.5 Overcoming ceramic brittleness through phase transformation toughening technology
Corrosion resistance Resistant to strong acids, strong alkalis and salt media Chemical inertness, far superior to that of metal alloys.
Temperature resistance Maximum operating temperature: 1000°C; melting point: 2700°C Maintaining stable mechanical properties at high temperatures
Sealing performance Surface roughness Ra < 0.2 μm, self-lubricating properties Achieve Class V/VI zero leakage standard
Service life 2-4 times that of titanium alloy valves Significantly reduce maintenance and replacement frequency

 

Product Structure and Technical Features

  1. Precision Ceramic Components

    (1)Valve Core/Ball: Utilizing isostatic pressing and high-temperature sintering processes, achieving a density of 6.0 g/cm³, high sphericity accuracy, and precise fit with the valve seat.

    (2)Valve Seat Sealing Surface: Zirconia-toughened alumina (ZTA) composite ceramic, combining wear resistance and impact resistance.

    (3)Guide Components: Low coefficient of friction, achieving oil-free self-lubrication and preventing jamming.

  2. Innovative Structural Design

          (1)Lightweight Valve Disc: Density only 3.5-4.5 g/cm³, fast response speed, and minimal water hammer effect.

          (2)Streamlined Flow Channel: Reduces turbulence and pressure drop, improving flow efficiency.

          (3)Dual Sealing System: Ceramic-ceramic hard seal + elastomer soft seal backup, ensuring absolute zero leakage.

          (4)Anti-jamming Design: Special geometric structure prevents solid particles from getting stuck between the valve disc and valve body.

      3. Fail-Safe Features

         (1)Ceramic components employ a flat-faced design; even if the ceramic cracks in extreme cases, the sealing system still prevents immediate leakage to the atmosphere

         (2)Valve body design complies with ASME B16.34 standards and features blow-out protection. (proof) valve stem structure

 

Technical Specifications Recommendations

Parameter Specifications range
Nominal diameter DN15 – DN150 (1/2" – 6")
Pressure level PN16 – PN40 (ANSI 150# – 300#)
Application temperature -50°C to +350°C (special designs can reach 1000°C)
Connection method Flanges (ANSI/DIN/JIS), threads, welding
Leakage level ANSI/FCI Class V (standard) / Class VI (optional)
Ceramic material Y-TZP / Ce-TZP / ZTA (customized according to working conditions)
Valve body material 304/316 stainless steel lined with ceramic, or all-ceramic structure

 

Economic Benefit Analysis

Although the initial investment for zirconia ceramic check valves is higher than that for ordinary metal valves, the overall economic benefits are significant:

  1. Maintenance costs reduced by over 70%: Under highly corrosive conditions, metal valves may need to be replaced every 3-6 months, while ceramic valves can last 3-5 years.
  2. Avoids unplanned downtime: Ultra-long reliability ensures continuous system operation, reducing downtime losses.
  3. Energy saving and consumption reduction: Excellent sealing performance eliminates internal leakage, reducing pumping energy consumption.
  4. Environmental compliance: Zero-leakage design meets the most stringent VOCs and hazardous media emission standards.

 

Selection Guide

In applications where zirconia ceramic check valves are required:

  1. The medium contains solid particles with a hardness >5 Mohs (quartz sand, catalysts, mineral powder)
  2. Highly corrosive environments with pH < 2 or pH > 12
  3. Operating temperatures > 200°C and containing corrosive media
  4. Toxic or flammable media requiring extremely high leakage rates
  5. Food/pharmaceutical grade requiring zero metal contamination

Contact us for customized solutions. Our engineers can provide optimal ceramic material selection and structural design based on your specific operating conditions (medium composition, temperature, pressure, particle content) to ensure maximum valve performance and lifespan in your application.

 

Customized Process
 
Comprehend application product information from customers  Engineers create drawings  Customers confirms drawings ⇒ After customer confirmation, a quotation is prepared ⇒ Confirm quotation and making sample ⇒ Customers confirm sample ⇒ Deposit payment is made  Mass production begins ⇒ Shipping and receiving tracking ⇒ Order finish

 

FAQ

Q1: What products does your company offer?

We specialize in high-performance ceramics such as alumina and silicon nitride, providing insulators, structural components, wear-resistant parts, and customized solutions.

Q2: Can you customize non-standard parts?

Yes. We support processing based on provided drawings and collaborative technical development, offering a full-process service from design to mass production.

Q3: What about accuracy and delivery time?

Standard tolerance ±0.05mm, precision grade ±0.01mm; samples 7-15 days, bulk orders 20-30 days.

Q4: Main application areas?

Power, electronics, machinery, chemical, and aerospace industries.

Q5: Quality assurance measures?

Full-process quality inspection, providing material reports and performance test data, supporting third-party certification and testing.

Q6: Do you provide technical support?

We provide professional support such as material selection consultation, design optimization, and failure analysis.

 

Why choose us?

1.Customized R&D, rather than standard product adaptation

2.Deep control of materials science:Material Selection Based on Needs,Microstructure Optimization,Batch Consistency

3.Precision machining capability:Flatness can reach 0.001mm, parallelism 0.002mm, and roughness Ra 0.1μm.

 

Our workshop

 

                CNC Workshop

 

                           Testing Room

 

                      Surface grinding Workshop

 

                         Sintering Workshop 

 

                   Circular Grinding Workshop

 

                  Injection molding Machine Workshop

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Contact Us :cindy@w7ceramics.com

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