Ceramic Disc Valves High Precision Technical Ceramic Cartridge Tap Valve Elements 

Specification of the tap ceramic disc:

• OD: 12.5mm---16.2mm ceramic discs
• The frictional times is 300, 000 to 500, 000
• Rigidity is 84~86 HRA.
• The thickness tolerance is less than 0.05mm, the diameter tolerance is less than 0.05mm.  

 Features:

• Excellent insulation
• High Mechanical Strength
• Outstanding Electrical and Electronic Properties
• Wear Resistance 
• Extreme Temperature Stability
• Resistant to Corrosion and Chemical Attack 
• Gas and Liquid Tight

 Application of ceramic disc plate series:

• Water tap Valve
• Pump valve
• Oil valve
• Gas valve
• Other industrial use for sealing purpose

The general specifications service 1. Factory price with a discounts 2. Fast shipment within 24 hours 3. In stocks for hot sales sizes 4. MOQ:1qty 5. Online service

The Custom service 1. Can be custom for special sizes by drawing 2. Can offer a samples within 2 days 3. The delivery time within 20 days after confirmed the order 4. Factory price and Senior ceramic engineer service 5. Online service

Ceramic materials(include but not limited belows)
· 95%--99.99% Alumina (Al2O3)   · Silicon Carbide   · Silicon Nitride  · TTZ: Magnesia partially stabilized Zirconia (ZrO2)
· YTZP: Yttria partially stabilized Zirconia (ZrO2)   · ZDY: Yttria fully stabilized Zirconia (ZrO2)...

	Al 2O 3	ZrO2/Y2O3	ZrO2/MgO	MgO	SiC	Si3N4 Reaction sintered	Si3N4 Hot pressed	ALN
Physical properties
Density (g/cm3)	3,9	5,9	5,75	3,58	3,2	3,27	3,29	3,26
Molecular weight (g/mole)	102	-	-	40,4	40,1	140	140	41
Maximum service temperature air (°C)	1700- 1800	1500	1000	2200	1500	1200- 1500	1100- 1600	1000- 1800
Mechanical properties
Hardness (Mohs)	9	-	-	5,5	9	-	-	7
Modulus of elasticity (GPa)	300-400	200	200	250-300	420	170-220	280-310	318
Poisson's ratio	0,25	-	-	0,18	0,14	0,25-0,26	0,27	0,25
Fracture toughness (MPa.m1/2)	2-3	7-13	6-10	-	2,5-3,5	3,5-5	6,1	4,5
Electrical properties
Dielectric constant	9-10	-	-	9-10	-	10	10	9,2
Electrical resistivity at 20°C (Ohm.cm)	>10 14	10 13-10 14	>10 10	-	10 2-10 6	>10 7	10 12- 10 15	>10 14
Dielectric strength (kV/mm)	10-20	9	2-10	-	-	-	-	15
Thermal properties
Specific heat (J/K/kg)	900	400-500	420	870-880	750	690	680-800	800
Thermal conductivity (W/m/K) at 20°C	26-35	2,2-3,2	1,5-2,5	40-50	63-155	9-30	15-43	180
Coefficient of thermal expansion ( 10-6) from 20 to 1000°C	8-9	10-11	5-16	10-13	4-5	3	3,3	4,4-5,3
Melting point (°C)	2050	2590	-	2800	2500	1900	1900	2200

 

FAQ
1. Monthly Capacity: 50,000-60,000 pcs;
2. Material: OEM or as per your suggestion;
3. Lead time: about 7-20 days, pls confirm the quantities required;
4. Incoterm: FOB, CFR, CIF;
5. Delivery Cost: It is determinated by the destination port;
6. Payment Term: PayPal; T/T; L/C.
7. Shipment: by sea, by air, by courier, by post, etc.
 
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