- Range of Operation: 1×10â»â· Pa to 1.2×10âµ Pa
- Cycles Until First Maintenance: 200,000 Times
- Packaging: Carton
- Origin: China
- Leak Rate: 1.3×10â»â· Pa·L/s
- Trademark: CBVAC
- Material: Stainless Steel / Aluminum
- HS Code: 8481804090
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- Brief Introduction
- Features
- Designed in a standard and modular way, making it easy to replace and maintain.
- Easy to clean and maintain.
- Equipped with stainless steel bellows and Viton O-rings, no lubrication required.
- The internal body of the valve is welded with stainless steel, ensuring low leak rate.
- Order Information
Order Example: 2089
High Vacuum Manual Block Straight Valves, DN=16mm, CF flange
DN (mm) | Order No. | Weight (kg) | ||
Manual | Pneumatic | Manual | Pneumatic | |
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 |
- Main Technical Specifications:
- Application Range:1×10â»â¶ Pa to 1.2×10âµ Pa
- Differential Pressure Before Opening: ≤1.2×10ⵠPa in any direction
- Leak Rate of Valve Body and Base: <1.3×10â»â· Pa·L/s
- Cycles Before First Repair: 200,000 times
- Baking Temperature of Valve Bodies: Open ≤200°C; Close ≤150°C
- Installation Direction: Any direction
- Power Supply: AC 220V 50Hz, 6W or DC 24V, 3W (for manual valves only)
- Compressed Air (for pneumatic valves only): 0.4~0.7 MPa
- Closing and Opening Speed (for pneumatic valves only): ≤1 second
- Valve Position Indication:- Manual valves: indication of open and closed positions- Pneumatic valves: indication of open and closed positions (with magnet switch)
- External Dimensions
- Manual Valves
Model | DN | Connecting Flange | Manual | ||||||
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 |
 Model |
DN | Connecting Flange | Pneumatic | ||||||
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 |
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CF flanges conform to GB/T 6071-2003
Optional Parts: Magnet Switch.
We can OEM and ODM according to your drawings and requirements

Packaging & Delivery
Packaging Details: Inner: plastic bag. Outer: carton or wooden case or as per customer requirements.
Delivery Detail: Shipped within 3 days after payment
About Our Company
Chuanbei Vacuum Technology (Beijing) Co., Ltd. (Registered Brand CBVAC), established in 2002, is a national high-tech enterprise and a key member of the Chinese Vacuum Association. Specializing in the development, design, production, sales, and service of vacuum products, we have undertaken major projects from MOST, intelligent digital workshops from NDRC, and technology upgrades from MIIT. CBVAC offers various series of vacuum valves, vacuum pumps, vacuum bellows, vacuum flange connectors, and custom chamber processing, as well as vacuum system integration. Our products and technologies are widely used in new energy, new materials, aerospace, semiconductors, IC equipment, and other fields. We also design and manufacture vacuum technology applications for universities and research institutions.

Our Product Range
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2. Application: Metallurgical industry, Bridge building, Building industry, Chemical industry, shipping industry
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