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Vacuum Angle Valves with KF/CF/ISO-F Flanges These vacuum angle valves are designed for use in ultra-high vacuum systems, offering reliable performance and long service life. They come in two types: manual and pneumatic. Manual valves operate using a rotating handle, while pneumatic valves are driven by compressed air. Both types feature excellent sealing properties, high durability, and are suitable for pure air and non-corrosive gases. Key Features: - Modular design for easy maintenance and replacement - Easy to clean and maintain - Equipped with stainless steel bellows and Viton O-rings for no lubrication required - Inner body is welded with stainless steel, ensuring low leak rate Order Information: Each product has a specific order number that can be identified based on the valve's operation mode and DN (diameter). For example, 2089 refers to a High Vacuum Manual Block Straight Valve with DN=16mm and CF flange. Below is the detailed table of order numbers and weights: | DN (mm) | Manual Order No. | Pneumatic Order No. | Manual Weight (kg) | Pneumatic Weight (kg) | |---------|------------------|---------------------|--------------------|------------------------| | 16 | 2089 | 2297 | 0.50 | 0.70 | | 25 | 2090 | 2298 | 1.80 | 1.70 | | 40 | 2091 | 2299 | 2.20 | 2.10 | | 50 | 2092 | 2300 | 2.70 | 3.55 | Major Technical Specifications: - Operating pressure range: 1×10⁻⁶ Pa to 1.2×10⁵ Pa - Differential pressure before opening: ≤1.2×10⁵ Pa in any direction - Leak rate: <1.3×10⁻⁷ Pa·L/s - Cycles until first service: 200,000 times - Baking temperature: Open ≤200°C, Close ≤150°C - Installation position: Any direction - Power supply: AC 220V 50Hz, 6W or DC 24V, 3W - Compressed air supply (for pneumatic valves): 0.4–0.7 MPa - Closing and opening speed (for pneumatic valves): ≤1 second - Position indication: Manual valves have position indicators; Pneumatic valves use magnet switches External Dimensions: Manual Valves: | Model | DN | Connecting Flange | A | B | C | D | E | F | G | |-------------|----|-------------------|------|----|----|----|-----|----|----| | CD-J16B | 16 | CF16 | 106 | 16 | 40 | 48 | 64 | 40 | 28 | | CD-J25B | 25 | CF25 | 137 | 25 | 55 | 69 | 89.5| 50 | 40 | | CD-J40B | 40 | CF35 | 153 | 35 | 63 | 69 | 97.5| 63 | 40 | | CD-J50B | 50 | CF50 | 192 | 50 | 80 | 92 | 126 | 63 | 40 | Pneumatic Valves: | Model | DN | Connecting Flange | A | B | C | D | E | F | G | |--------------|----|-------------------|------|----|----|----|-----|-----|----| | CDQ-J16B | 16 | CF16 | 125 | 16 | 40 | 48 | 85 | 113 | 28 | | CDQ-J25B | 25 | CF25 | 149 | 25 | 55 | 69 | 111 | 140 | 40 | | CDQ-J40B | 40 | CF35 | 167 | 35 | 63 | 69 | 118 | 150 | 40 | | CDQ-J50B | 50 | CF50 | 207 | 50 | 80 | 92 | 144 | 210 | 50 | Optional Parts: Magnet switch Packaging & Delivery: - Packaging: Inner plastic bag, outer carton or wooden case, customizable per customer request - Delivery: Shipped within 3 days after payment Company Introduction: Chuanbei Vacuum Technology (Beijing) Co., Ltd. (Registered Brand: CBVAC), established in 2002, is a national high-tech enterprise specializing in the development, design, production, sales, and service of vacuum products. The company has participated in major projects from the Ministry of Science and Technology, the National Development and Reform Commission, and the Ministry of Industry and Information Technology. CBVAC offers a wide range of vacuum valves, pumps, bellows, flange connectors, and custom chamber processing. Our products are widely used in new energy, new materials, aerospace, semiconductors, and other industries. We also provide customized solutions for universities and research institutions.

Centrifugal Casting

Centrifugal casting, also known as centrifugal casting, is a casting method that involves pouring molten metal into a rotating mold. Through this method, centrifugal force can be utilized to assist in filling the mold with metal and help remove porosity and impurities from the casting, thereby improving the density and quality of the final product. According to different application scenarios and technical characteristics, centrifugal casting can be roughly divided into the following categories:
 
 
 
1. * * Horizontal centrifugal casting * *: In this type of centrifugal casting, the mold is placed horizontally. It is particularly suitable for producing long or tubular products, such as steel pipes, copper pipes, etc. Horizontal centrifugal casting can effectively control the uniformity of wall thickness and is very advantageous for producing large-diameter pipelines.
 
 
 
2. * * Vertical centrifugal casting * *: Unlike the horizontal type, in the vertical centrifugal casting process, the mold is installed vertically. This method is suitable for manufacturing circular parts or products that require openings at both ends, such as certain types of valve bodies. Vertical setting makes the pouring process more convenient and also facilitates the removal of non-metallic inclusions.
 
 
 
3. * * Tilted centrifugal casting * *: This is a method between horizontal and vertical, in which the mold is placed at a certain angle of inclination. The inclined centrifugal casting combines some advantages of the previous two, which is beneficial for forming products with specific shapes (such as conical shapes) and can improve the uniformity of material distribution to a certain extent.
 
 
 
4. * * Semi continuous centrifugal casting * *: In this process, molten metal is continuously injected into a mold that rotates continuously but gradually moves away from the sprue position. This method is very suitable for large-scale production of products with the same cross-section but variable length, such as utility poles.
 
 
 
5. * * Special purpose centrifugal casting * *: In addition to the common types mentioned above, there are also some centrifugal casting techniques developed for specific applications, such as high-temperature alloy centrifugal casting for producing aerospace components, composite material centrifugal casting for manufacturing complex internal structural parts, etc.
 
 
 
Each centrifugal casting method has its unique advantages and scope of application. When selecting a specific method, factors such as the characteristics of the parts to be produced, cost-effectiveness, and production capacity need to be considered. I hope this information is helpful to you!

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