Advantages of laboratory gas circuit engineering:
        In laboratories, centralized gas supply is often used to transport high-purity gases, which has the following advantages:
       1. Maintain gas purity
        special gas cylinders are equipped with flushing valves to eliminate impurities introduced each time the cylinder is replaced, ensuring the purity of the gas at the end of the pipeline.
       2, uninterrupted gas supply
        gas circuit control system can switch between gas bottles manually or automatically to ensure continuous supply of gas.
       3, low voltage warning
        When the air pressure is lower than the alarm limit, the alarm device can automatically activate the alarm.
       4, gas pressure is stable
        system adopts two-stage pressure reduction (the first level is adjusted by the air supply control system, and the second level is adjusted by the control valve at the point of use) to supply air, which can obtain very stable pressure.
       5, high efficiency
        can make full use of the gas in the cylinder through the gas supply control system, reduce the residual gas margin, and reduce gas costs.
       6, easy to operate
        All gas cylinders are concentrated in the same location, reducing operations such as transportation and installation, saving time and costs.
       7. Reduce the rental of gas cylinders
        adopts a central gas supply system, which can reduce the number of gas cylinders required, thereby saving the cost of renting and purchasing gas cylinders.
       8, reduce molecular sieve loss
        control of gas purity can effectively reduce the use of molecular sieves (cost savings).
       9. Airless bottles in the laboratory
        uses a central air supply system, which means there are no gas cylinder equipment in the laboratory. It has the following benefits:
       ---Increase safety. The cylinder may fall to the ground causing damage or injury.
       ---Increase the sense of security. Gas cylinders may cause gas leaks, fires, and other dangerous situations.
       ---Save space. Removing cylinders from the laboratory frees up experimental space.
       10. Other benefits
       ---Reduce the damage and loss rate of control valves.
       ---Shorten the length of the connecting pipeline between the air valve and the instrument, which is convenient.