Products

Alumina Corundum Ceramic Plunger

Brand: DuraTec
Product origin: China
Delivery time: around 30 days

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■ Introduction：

An alumina ceramic plunger is a type of plunger made from alumina ceramic, a high-performance ceramic material with excellent mechanical, thermal, and electrical properties. Alumina ceramic plungers are used in a wide range of industrial applications that require high wear resistance, chemical resistance, and temperature stability. They are commonly used in pumps, valves, and other fluid handling equipment for applications such as oil and gas, chemical processing, and water treatment. The alumina ceramic plunger are preferred over other materials due to their high hardness, low coefficient of friction, and ability to resist wear, corrosion, and thermal shock. Alumina corundum ceramic plunger are also lightweight and can withstand extreme temperatures, making them ideal for use in harsh environments.

alumina ceramic plunger

■ Technical data sheet:

Material			95% alumina	99% alumina	Zirconia
Physical Properties	Density	g/cm³	3.65	3.9	6.0
	Firing Temperature	℃	1680	1700	1600
	Viker Hardness	Hv	1500	1700	1300
	Rupture Strength	Kgf/cm²	3000	3500	11000
	Compressive Strength	Kgf/cm²	25000	30000	25000
	Fracture Toughness	Mpa.m^0.5	4.9	5.4	9.3
Thermal Properties	Max.Service Temperature	℃	1450	1500	1300
	Heat Resistant Impact	T(℃)	220	200	360
	Pyroconductivity	W/m.k	25	31.4	3
	Pyroconductivity	25-300℃	14	15.9	14
Appliance Properties	Volume Resistance/20℃	Ω/cm²	>1012	>1012	>1012
	Volume Resistance/100℃		1012-1013	1012-1013	1012-1013
	Volume Resistance/300℃		>1012	>1012	5x10⁹
	Dielectric Strength	Kv/mm	18	18	18
	Dielectric Constant(100 MHZ)	(E)	9.5	10	9.5
	Dielectric Tangent	(tgδ)	0.4x10^-3	0.4x10^-3	0.4x10^-3

corundum ceramic plunger

■ Advantages:

1. Wear resistance: wear resistant alumina ceramic plunger is extremely hard and wear-resistant, making it ideal for applications where the plunger is in constant contact with abrasive materials.

2. Chemical resistance: alumina ceramic plunger is highly resistant to chemical corrosion, making it suitable for use in harsh chemical environments.

3. Temperature stability: alumina corundum ceramic plunger can withstand high temperatures without degrading, making it ideal for use in high-temperature applications.

4. Low coefficient of friction: wear resistant alumina ceramic plunger has a low coefficient of friction, which reduces wear and prolongs the lifespan of the plunger.

5. Electrical insulation: alumina ceramic plunger is an excellent electrical insulator, making it suitable for use in electrical applications.

6. Lightweight: alumina corundum ceramic plunger is lightweight, which reduces the overall weight of the equipment and makes it easier to handle.

7. Cost-effective: Although alumina ceramic is more expensive than some other materials, it is cost-effective in the long run due to its durability and long lifespan.

Annex