Zirconia ceramic valve seat is a key part of the various pumps in household appliances, electrical appliances, and industrial applications. It plays a decisive role in liquid, gas, oil sealing and controlling performance.
With zirconium oxide ceramic outstanding properties, such as wear-resistance, chemical resistance, low thermal conductivity, high thermal expansion coefficient similar as stainless steel, very low friction coefficient, zirconia ceramic seal rings have been creating a very positive impact on aging features, service life-span, productivity, dependability in industrial equipment, mechanical engineering, like the food and beverage industry, medical equipment, electrical devices and so on.
Besides the ceramic ball valve, we also produce a variety of customized ceramic ball valve, ceramic seal ring, ceramic valve disc, ceramic piston and plunger for fluid, gas, oil-controlling / regulating system.
1. Perfect sealing performance because of super-low friction coefficient and similar CTE as assembled stainless steel
2. Extraordinary wear resistance and excellent corrosion resistance in various harsh conditions
3. Low wear loss can prevent the material of zirconia from the pollution of the fluid controlling system
4. Extremely long service life with minimum maintenance cost than various metal seal parts
5. High hardness, high flexural strength, high fracture toughness, high mechanical strength
6. Low thermal conductivity: less than 3 W/m.k at ambient temperature, so it's an ideal thermal material
We produce various zirconia ceramic sealing parts, including ceramic valve seat, ceramic seal ring, ceramic seal cylinder and so on.
Datasheet of Technical ceramics
Property | Units | Material | ||||
99.5% alumina | 99%alumina | 95% alumina | ZrO2 (Y-TZP) | ZrO2 (TTZ) | ||
Density | g/cm3 | ≥3.85 | ≥3.80 | ≥3.60 | ≥5.95 | ≥5.72 |
Water absorption | % | 0 | 0 | 0 | 0 | 0 |
Hardness | HV | 1700 | 1700 | 1500 | 1300 | 900 |
Flexural strength | Mpa | ≥379 | ≥338 | ≥320 | ≥1200 | ≥1200 |
Compressive strength | Mpa | ≥2240 | ≥2240 | ≥2000 | ≥1990 | 1750 |
Fracture toughness | Mpa m1/2 | 4-5 | 4-5 | 3-4 | 6.5-8 | 11 |
Max. service temperature | ℃ | 1675 | 1600 | 1450 | 1000 | |
CTE | 1×10 -6 /℃ | 6.5~8.0 | 6.2~8.0 | 5.0~8.0 | 8.0~9.5 | 10.2 |
Thermal shock | T(℃) | ≥250 | ≥200 | ≥220 | ≥300 | 350 |
Thermal conductivity(25℃) | W/m.k | 30 | 29 | 24 | 3 | 3 |
Volume resistivity | ohm.cm | |||||
25℃ | >1 x 10 14 | >1 x 10 14 | >1 x 10 14 | >1 x 10 11 | >1 x 10 11 | |
300℃ | 1 x 10 12 | 8 x 10 11 | 10 12 -10 13 | 1 x 10 10 | 1 x 10 10 | |
500℃ | 5 x 10 10 | 2 x 10 9 | 1 x 10 9 | 1 x 10 6 | 1 x 10 6 | |
Insulation strength | KV/mm | 19 | 18 | 18 | 17 | 20 |
Dielectric constant(1Mhz) | (E) | 9.7 | 9.5 | 9.5 | 29 | 28 |
We have in-housing comprehensive manufacturing types of equipment, including forming, sintering, CNC machining,
precision grinding, laser cutting and so on, it helps us to control the quality very well, also it greatly benefits cost control.
1. We will keep the ceramic parts inside the inner package to be fixed without moving, then it will prevent them from collision each other,
to avoid any cause any chippings during transportation.
2. In addition, the inside of the outer carton will be filled with sufficient protective kinds of stuff.
★ 10+ Years of manufacturing experience in OEM, ODM ★ Powerful R&D, mass production capability
★ In-house comprehensive manufacturing types of equipment ★ Rigorous quality control system and processes
★ Surpassing pre-sales and after-sales service ★ Abide all orders as the first priority
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.
Q7: What other products are you dealing with?
A: We focus on a variety of ceramic tubes, ceramic substrates, ceramic sheets, textile ceramics besides metalized ceramics.