Features
1. The shell is made of high-quality polycarbonate injection molding
2. Long period vacuum maintenance: 30 days after vacuuming, the change of vacuum degree is less than 6%
3.Vacuum indicator
4. Leak-proof valve with lock
5. silicon-rubber sealing ring
6. Strong damage resistance, good transparency and light weight: injection molding with high-quality polycarbonate material imported from Germany.
7. Seal without grease: use high-quality silicone rubber ring to seal
8. Fine-tuning of air intake; the valve is a special precision needle valve, which can adjust the air intake in a small amount to avoid
9. Avoid blowing damage to stored items
10. Quick-change joint to connect the exhaust pipe and the needle valve
11. Applicable working temperature: 0ºC-80ºC
12. Dual valve, which allows suction and filling of protective gas (inert gas) at the same time. If not inflated, unused valves can be used as backup valves.
Noted: It can be produced according to the special requirements of customers (such as: changing
material, low temperature application, etc.)
Specifications
Model |
Inner dia.(mm) |
Outer dia.(mm) |
Total height |
Diameter of diaphragm |
150 |
150 |
173 |
220 |
120 |
250 |
250 |
277 |
315 |
230 |
300 |
300 |
327 |
370 |
230 |
400 |
400 |
450 |
400 |
250 |
Working temperature |
0ºC-80ºC, can be customized |