Vacuum Accessories
KF ISO Stainless Steel Vacuum Flange Blind Plate for High Vacuum Systems
Item Number : KT-VA12
Price varies based on specs and customizations
- Material
- 304/316 stainless steel
- Pressure resistance
- 1.0MPa=10KG
- Working Temperature
- -20°C - 150°C
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Product Application
The KF/ISO stainless steel vacuum flange blind plate is an essential component in high vacuum and ultra-high vacuum systems, widely used across various industrial sectors. Its applications span multiple industries, including:
- Semiconductor Manufacturing: Ideal for vacuum pump systems and gas transmission systems, ensuring efficient and reliable operation in semiconductor production processes.
- Photovoltaic Industry: Used in vacuum coating equipment and PECVD (Plasma-Enhanced Chemical Vapor Deposition) equipment, contributing to the manufacturing of high-quality solar panels.
- Research Laboratories: Essential for high vacuum experimental equipment and vacuum drying equipment, supporting advanced scientific research and development.
These blind plates are designed to withstand the rigorous demands of these environments, providing a secure and reliable solution for maintaining high vacuum conditions.
Product Feature
The KF/ISO stainless steel vacuum flange blind plate is engineered with several key features that enhance its performance and durability:
-
Material Selection:
- 304 Stainless Steel: Suitable for general corrosive environments, offering a balance of cost-effectiveness and performance.
- 316 Stainless Steel: Ideal for highly corrosive environments, providing superior corrosion resistance for more aggressive conditions.
-
Sealing Material: Utilizes Viton, EPDM, and other high-performance sealing materials to ensure superior vacuum sealing performance, crucial for maintaining the integrity of high vacuum systems.
-
Connection Method:
- KF Connection: A quick and easy-to-operate connection method, perfect for small to medium-sized vacuum systems.
- ISO Connection: A standard connection method, suitable for large vacuum systems and high vacuum applications, ensuring robust and reliable connections.
Detail & Parts






Working Principle
The KF/ISO stainless steel vacuum flange blind plate operates on the principle of creating an airtight seal in vacuum systems. By using high-quality stainless steel materials and advanced sealing techniques, these blind plates effectively block off sections of a vacuum system, ensuring that the vacuum environment remains undisturbed.
- Material Integrity: The use of 304 and 316 stainless steel ensures that the blind plate can withstand the pressures and temperatures inherent in high vacuum applications.
- Sealing Mechanism: The incorporation of Viton and EPDM sealing materials provides a reliable barrier against air leakage, maintaining the vacuum integrity.
- Connection Efficiency: The KF and ISO connection methods facilitate quick and secure assembly, crucial for the dynamic needs of vacuum systems.
Product Advantage
The KF/ISO stainless steel vacuum flange blind plate offers several advantages that make it a preferred choice in high vacuum applications:
- Corrosion Resistance: With options in 304 and 316 stainless steel, these blind plates offer excellent resistance to corrosive environments, ensuring long-term performance.
- High Strength and Durability: Constructed from high-quality materials, these blind plates can withstand the mechanical stresses and harsh conditions typical of industrial applications.
- Versatility: Suitable for a wide range of applications, from semiconductor manufacturing to research laboratories, these blind plates are adaptable to various vacuum system needs.
- Efficient Sealing: The use of high-performance sealing materials ensures that the blind plate maintains a tight seal, crucial for maintaining high vacuum conditions.
- Easy Installation: The KF and ISO connection methods allow for quick and easy installation, reducing downtime and improving operational efficiency.
In summary, the KF/ISO stainless steel vacuum flange blind plate is a robust and reliable solution for high vacuum systems, offering superior performance, durability, and ease of use across a variety of industrial applications.
Technical specifications
ISO Vacuum Blind Flange

| Specifications | A | B | C | D |
| ISO63 | 95mm | 12mm | 70mm | 90mm |
| ISO80 | 110mm | 12mm | 83mm | 105mm |
| ISO100 | 130mm | 12mm | 102mm | 125mm |
| ISO125 | 155mm | 12mm | 127mm | 150mm |
| ISO160 | 180mm | 12mm | 153mm | 175mm |
| ISO200 | 240mm | 12mm | 213mm | 235mm |
| ISO250 | 290mm | 12mm | 261mm | 285mm |
| ISO320 | 370mm | 17mm | 318mm | 365mm |
| ISO400 | 450mm | 17mm | 400mm | 445mm |
| ISO500 | 550mm | 17mm | 501mm | 545mm |
| ISO630 | 690mm | 22mm | 651mm | 685mm |
KF Vacuum Blind Flange

| Specifications | A | B |
| KF10 | 12.2mm | 30mm |
| KF16 | 17.2mm | 30mm |
| KF25 | 26.2mm | 40mm |
| KF40 | 41.2mm | 55mm |
| KF50 | 52.2mm | 75mm |
| KF63 | 70mm | 87mm |
| KF80 | 83mm | 114mm |
| KF100 | 102mm | 134mm |
| KF160 | 153mm | 190mm |
CF Vacuum Blind Flange

| Specifications | A | B | C*no | P.C.D |
| CF16 | 34mm | 7.5mm | 4.4*6 | 26.9mm |
| CF25 | 54mm | 10.5mm | 6.6*6 | 43mm |
| CF35 | 70mm | 12.7mm | 6.7*6 | 58.7mm |
| CF50 | 86mm | 16mm | 8.4*8 | 72.4mm |
| CF63 | 114mm | 18mm | 8.4*8 | 92.1mm |
| CF80 | 130mm | 18mm | 8.4*16 | 110mm |
| CF100 | 152mm | 20mm | 8.4*16 | 130.3mm |
| CF150 | 202mm | 22mm | 8.4*20 | 181mm |
| CF200 | 253mm | 24.5mm | 8.4*24 | 231.8mm |
| CF250 | 305mm | 26mm | 8.4*32 | 284mm |
| CF300 | 368mm | 28.5mm | 10.8*36 | 338.1mm |
| CF350 | 419.1mm | 28.5mm | 10.8*36 | 388.9mm |
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Product Datasheet
KF ISO Stainless Steel Vacuum Flange Blind Plate for High Vacuum Systems
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