Best Wear Resistance High Purity Al2O3 Ceramic Seal Disk
The specification and ceramic seal disk
| Material options |
96% alumina, 99% alumina, silicon carbide (SiO2) and Silicon nitride (Si3N4) |
| Working surface roughness |
fine polishing better than Ra0.3, diamond polishing better than Ra0.1 |
| Other parameters |
flatness to be 0.002mm, perpendicularity: 0.005mm, Parallelism : 0.002mm |
| Nominal tolerance |
size less than 10mm with 0.10mm, size over than 10mm with 1% of dimensions |
| Precision process available |
polishing, fine grinding, CNC machining |
The prime characteristics of the al2o3 ceramic seal disk
1. Great mechanical properties, hardness, compressive and flexural strength
2. Perfect surface contact area ratio: the value can ensure between 60 ~ 80%
3. Excellent wear-resistance, over 276 times than stainless steel
4. Exceptional hardness, the hardness is up to 1700MPa
5. Chemical stability, resistant most of strong acid and alkali
6. Precise and consistent dimensions every batch via fine grinding
7. Eco-friendly and safe, the material meets FDA, LFGB completely
The description of the ceramic seal disk
Ceramic faucet discs are making from aluminum oxide ceramics (alumina) using a state-of-the-art method, which results in working surfaces with extraordinary, diamond-like hardness. The ceramic sealing disc also offers exceptional wear resistance, excellent chemical resistance against acids, and alkaline solutions. The quality of the working surface ensures the superior reliability and long service life of ceramic sealing discs.
Even if the sand, rust are mixed in the valve, it will not impact the sealing performance. So even after 500,000 cycles, there are no signs of wear and continue to precisely control the desired amount of water in faucets and taps
As ceramic seal disc is a key component in water, oil, gas sealing system, we always ensure that we manufacture best-quality products through strict quality control in every process, we introduced KPI into our manufacturing flow chart and keep all batches with consistent dimensions.
With over 15 years of manufacturing experience for ceramic seal discs, we have been supplying a variety of standard components, also we support various customized needs per your technical drawings, specification or practical samples.
If you are looking for a quality manufacturer for ceramic seal discs, please get through with us. We do believe you will find it's a wise choice.
The typical application of ceramic seal disk
Ceramic seal discs are widely used in a variety of water faucet, water tap, sanitary sealing system, regulating system, sealing valves, water /oil/gas pump, and so on.
The gallery of ceramic seals
Remark:
We produce a variety of technical ceramic seals in different materials, also different types of ceramic seals, including ceramic sealing disc, ceramic seal ring, ceramic seat, ceramic ball valve.
Technical Datasheet of the ceramic sealing disc
| Property |
Units |
Materials |
| 99.5%Al2O3 |
99%Al2O3 |
95%Al2O3 |
ZrO2 |
Si3N4 |
| Density |
g/cm3 |
≥3.90 |
≥3.85 |
≥3.65 |
≥6.0 |
≥3.2 |
| Water absorption |
% |
0 |
0 |
0 |
0 |
0 |
| Hardness |
HV |
1700 |
1700 |
1500 |
1300 |
1550 |
| Flexural strength |
Mpa |
≥379 |
≥338 |
≥320 |
≥1200 |
≥600 |
| Compressive strength |
Mpa |
≥2240 |
≥2240 |
≥2000 |
≥1990 |
≥2500 |
| Fracture toughness |
Mpa m1/2 |
4-5 |
4-5 |
3-4 |
6.5-8 |
6 |
Max. service temperature
(Non-loading) |
ºC |
1675 |
1600 |
1500 |
1000 |
1200 |
| CTE (20-800ºC) |
1×10 -6 /ºC |
6.5~8.0 |
6.2~8.0 |
5.0~8.0 |
8.0~9.5 |
3.1 |
| Thermal shock |
T(ºC) |
≥250 |
≥200 |
≥220 |
≥300 |
≤1000 |
| Thermal conductivity(25ºC) |
W/m.k |
30 |
29 |
24 |
3 |
15~20 |
| Volume resistivity (25ºC ) |
ohm.cm |
>1 x 10 14 |
>1 x 10 14 |
>1 x 10 14 |
>1 x 10 11 |
>1 x 10 12 |
| Insulation strength |
KV/mm |
19 |
18 |
18 |
17 |
|
| Dielectric constant(1Mhz) |
(E) |
9.7 |
9.5 |
9.5 |
29 |
|
Our advantage and strength
1. 10+ Years of manufacturing experience in OEM, ODM and trusted & professional teams
2. Powerful R&D, prototyping & mass production capability to support trial order and high volume production
3. In-house comprehensive manufacturing types of equipment from raw materials to high precision machining
4. Rigorous quality control system and processes, including IQC, IPQC, QA, OQC in working instructions
5. Surpassing pre-sales, sales, and after-sales service, abide all orders every customer as the first priority
FAQs (Frequently Asked Questions)
Q1. Are you a factory or trading company?
A: We are a manufacturer. You are welcome to visit our factory.
Q2: Do you send a sample to check?
A: Sure, the sample is free and freight collect.
Q3: When will you ship it?
A: If the products are in storage, we'll ship within 48 hours
Q4: When can I get the price?
A: We regularly quote within 24 hours after we get your inquiry. If you are in urgent need of getting the price.
Please call us or tell us in your email so that we will proceed with your inquiry as a priority.
Q5: Is it available to provide customized products?
A: We always support custom-made demand as per different materials, dimensions, and designs.
Q6: How to ensure quality?
A: The dimension out of any batch will be carried out sampling inspection per international AQL standard. A 100% cosmetic inspection will be done.
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