Industrial Wear Resistance Polished Tap Alumina Ceramic Seal Disc for Pump Seal

Product Description

Industrial Wear Resistance Polished Tap Alumina Ceramic Seal Disc for Pump Seal
 

The specification

Specification and ceramic sealing disc

1. Material options: 96% alumina, 99% alumina, silicon carbide (SiO2), and Silicon nitride (Si3N4)

2. Working surface roughness: fine polishing better than Ra0.3, diamond polishing better than Ra0.1

3. Dimension: the max. outer diameter up to 500mm

4. Other parameters: flatness to be 0.002mm, perpendicularity: 0.005mm, Parallelism : 0.002mm

5. Nominal tolerance: size less than 10mm with 0.10mm, size over than 10mm with 1% of dimensions

6. Precision process available: polishing, fine grinding, CNC machining


Prime benefits of the ceramic sealing disc

1. Great mechanical properties, hardness, compressive and flexural strength

2. Excellent wear-resistance,  over 276 times than stainless steel

3. Exceptional hardness, the hardness is up to 1700MPa

4. Chemical stability, resistant most of strong acid and alkali

5. Perfect surface contact area ratio:  the value can ensure between 60 ~ 80% 

6. Precise and consistent dimensions every batch via fine grinding

7. Eco-friendly and safe, the material meets FDA, LFGB completely

Product Description

Description of the ceramic sealing disc

High purity alumina ceramic sealing disc for the pump seal has been recognized for its safe, outstanding properties and precise operation, thereby creating a perfect sealing effect. Furthermore, aluminum oxide ceramic (alumina) is a very cost-effective material, so alumina ceramic sealing discs have been widely used. In comparison with the traditional seal discs,  it can work smoothly even if after 500,000 cycles or higher due to its unmatched wear resistance and exceptional mechanical strength. 

As the ceramic sealing disc is a key component in oil, water, gas sealing system, we always ensure that we manufacture the 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 12 years of manufacturing experience for ceramic sealing 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 sealing discs, please get through with us. We do believe you will find it's a wise choice


The typical application of ceramic sealing disc

Ceramic sealing discs are widely used in a variety of water faucets, water taps, sanitary sealing systems, regulating systems,  sealing valves, water /oil/gas pumps, and so on.
 

We also produce

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

Technical Datasheet of the ceramic sealing disc
 

Property	Units	Materials
		99.5%Al2O3	99%Al2O3	95%Al2O3	ZrO2	Si3N4
Density	g/cm^3	≥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 m^1/2	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
 

FAQ

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.