Custom 95% 99% 99.5% Alumina Ceramic Valves Disc

• Customization: Available
• Application: Industrial Ceramic, Mechanical Seal
• Type: Ceramic Parts
• Model NO.: Customized
• Product Name: Ceramic Seal for Shut-off Valve
• Optional Material: Alumina, Silicon Carbide, Zirconia
• Certificate: FDA, ISO9001
• Features: Super Wear Resistance, Low Friction
• Usage: Ceramic Disc for Water Tap/Faucet
• Material: Alumina Ceramic
• Transport Package: Individual Packaging
• Specification: Max. OD to be 200mm
• Trademark: JingHui
• Origin: China
• HS Code: 8547100000
• Production Capacity: 5000000/Month

Product Description

Custom 95% 99% 99.5% Alumina Ceramic Valves Disc
 

The Prime Characteristics

The main characteristics of the alumina ceramic seals

1. Excellent wear-resistance,  over 276 times than stainless steel
2. Exceptional hardness, the hardness is up to 1700MPa
3. Chemical stability, resistant most of strong acid and alkali\
4. Great mechanical properties, hardness, compressive and flexural strength
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
 

The specification

The specification and ceramic seals

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

Product Description

Alumina (al2o3) ceramic seal disc is an innovative liquid control system found in tap, faucet, sanitary controlling system, regulator, diverter, water pump.  Each time you use the devices, two discs ( rotor and stator)  control water, beverages, oil flow by gliding back and forth in an airtight seal that prevents leaking and ensures a super smooth operation.
 

The sliding surface of the ceramic sealing disk is extremely smooth and almost as hard as diamonds. These durable valves are unaffected by temperature extremes, sand, rust, and severe water conditions.

As ceramic seal disk 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.

The typical application of ceramic seal disc
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/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

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.