General Requirements for Pneumatic Sanitary Valves The specifications and categories of the production of pneumatic sanitary valves shall meet the requirements of pipeline design documents. The model of the pneumatic valve should indicate the national standard number requirements. If it is manufactured according to enterprise standards, the relevant description of the model should be indicated. The working pressure of the pneumatic sanitary valve is greater than or equal to the working pressure of the pipeline, and without affecting the price, the working pressure that the valve can withstand should be greater than the actual working pressure of the pipeline; either side of the pneumatic valve should be able to withstand…