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The vacuum piston (Vacuum Stopcock or Vacuum Valve) is a key component used to control the flow of gas in a vacuum system. They are typically installed in glass instruments such as dispensing funnels, reaction bottles, or connecting tubing to enable sealed and open operation of the system. The vacuum piston is designed to provide good airtightness while allowing the user to easily switch on and off.
|
No. |
Item |
Details |
|
1 |
Product Name |
3.3 Borosilicate Glass |
|
2 |
Main Chemical Components |
SiO₂, Al₂O₃, B₂O₃, Fe₂O₃ |
|
3 |
Coefficient of Expansion |
3.3 |
|
4 |
Operating Temperature |
430°C |
|
5 |
Strain Temperature |
520°C |
|
6 |
Annealing Temperature |
560°C |
|
7 |
Softening Temperature |
815°C |
|
8 |
Density |
2.23g/cm³ |
|
9 |
Refractive Index |
1.472 |
|
10 |
Light Transmittance |
92% |
|
11 |
Acid-Alkali Resistance |
Corrosion - resistant |
From quotation to delivery, we provide one-stop customer service, responding quickly to customer needs, solving problems efficiently, and completing shipments. Additionally, we offer process optimization and technical support services, including professional workflow improvement, sample preparation and testing, mass production supply, and technical assistance. We meet customers' demands for quartz and specialty glass products.
We can design and develop quartz and specialty glass according to customer needs and application requirements.
The manufacturing process of quartz and specialty glass can be optimized for customers.
We provide sample preparation and testing services for new types of quartz and specialty glass.
Once approved, quartz and specialty glass can be mass-produced to ensure stable and reliable supply.
Mingyang can also provide relevant technical support and consulting services to customers.
Yancheng Mingyang Quartz Products Co., Ltd. is a company specializing in the production of quartz and special glass products. Yancheng Mingyang Quartz Products Co., Ltd. is the production plant of Jinzhou Mingde Quartz Glass Co., Ltd. in Jiangsu, We are a professional OEM Vacuum Pistons Manufacturers and Vacuum Pistons Manufacturers. Since its establishment, the company has developed rapidly, introduced advanced technology and production equipment at home and abroad, and continuously improved and improved product quality. Relying on its own advantages, we have developed a variety of products suitable for the market and meet the needs of different customers, and solved many urgent production problems for our customers.
The company's products include quartz glass tubes, double-hole quartz glass tubes, quartz glass rods, quartz sheets, sapphire windows, calcium fluoride glass windows, infrared ultraviolet coatings, high-pressure resistant aluminosilicate glass window panels, quartz glass instruments, high borosilicate glass instruments, quartz crucibles, quartz gold-plated tubes, quartz heaters, quartz infrared heating tubes, far-infrared directional radiation heaters ultraviolet germicidal lamps and other special types of quartz glass products.
A process engineer sizing a 1,200 °C tube furnace usually asks two questions before the purchase order goes out: what is the melting point of quartz, and what will the tube actually do once it is hot. The first answer is short — crystalline quartz melts somewhere between 1670 °C and 1713 °C, depending on which crystal...
READ MOREA furnace builder once asked for the thermal conductivity of a 120 mm clear quartz tube and got three different answers in a single afternoon: 1.3, 1.38 and 2.6 W/(m·K). All three were honest. The first came from a room-temperature catalogue line, the second from a handbook value measured at 25 °C, and the third from ...
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