Modern laboratory is often used in the test and analysis of H2,C2H2,O2,N2,Ar,He etc. The traditional laboratory gas supply mode is to set up a a gas cabinet  near each location.It leads to redundant construction, brings safe hidden trouble and affects indoor design, the reason why choose the gathering gas supply is its merits :safety, economical efficiency,and aesthetic property have become the main trend for the development and of the construction of the laboratory.
现代实验室在检测分析中经常用到H2、C2H2、O2、N2、Ar、He等各种气体，传统的实验室供气方式是在每个用气点附近设置一个气瓶柜，造成重复建设，带来安全隐患，影响室内美观，集中供气因为它的安全，方便、经济、美观已成为为实验室发展和建设的大趋势。

Laboratory gas supply / 实验室供气方式
1、Scattered gas and gas filling points less, and is decentralized.
分散供气，同种气体用气点少，且分散分布时采用。

2、Central gas supply and gas gas, and a set of cloth used.
集中供气，同种气体用气点多，且分集中布时采用。

Advantages of central gas supply / 集中供气的优点
1、The ease of operation, security, and unified purchase gas cylinders, gas flammable and combustible properties distinguish the place. And ventilation, the firewall, the emergency cut off easy cylinder replacement and under-voltage alarm, measures, management, safety and security.
操作方便、安全性好，统一设置气瓶间，将气体按可燃和不可燃性质区分安置。并采取通风换气，防火防爆，紧急切断和欠压报警等措施方便气瓶更换、管理，安全有保障。

2、Pressure stability, high strength, through multiple levels decompression gases, each gas gas pressure and flow can be precisely adjusted, and displayed in real time, through the installation of gas purging replacement system, gas, high purity.
气压稳定、纯度高，通过多级减压方式供气，每个用气点的用气压力和流量可以精确调节，实时显示，通过加装气路吹扫更换系统，供气纯度高。

3、Economical and clean appearance, can reduce the duplication of the same gas gas, bus, gas pipeline are integrated, neat appearance.
经济实用，整洁美观，可以减少同种气体供气汇流排的重复建设，供气管道统一规划，整洁美观。

Made up of central gas supply system / 集中供气系统的组成
1、Gas-source parts: cylinder (air supply) set cylinders placed in a specific room, through one-stage vacuum system (gas regulator or manifold) with gas under pressure into a low pressure gas.
气源部分：气瓶（气源）集中安置在特定的气瓶间，通过一级减压系统（气体减压器或汇流排）将高压气体转化成低压气体。

2、Piping parts: stainless steel pipeline to deliver the gas to the floor after equipment used in every room.
管道部分：经过（316#）不锈钢管道将气体送到各楼层各房间的仪器设备使用点。

3、Terminal part: the instrument is configured before cut-off valve and secondary pressure reducer, can make gas switches, precise adjustment and display air pressure.
终端部分：仪器前配置截止阀和二级减压器等，可以制作气路的开关，精确调整和显示气体压力。