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  Fire Fighting Safety Equipment Supplier There are many types of butterfly valves, including quick cut-off and continuous adjustment, Pneumatic butterfly valves , electric butterfly valves are mainly used for liquid and gas low pressure large diameter pipelines. It is suitable for occasions where the pressure loss is not high, flow adjustment is required, and the opening and closing requirements are fast; usually the temperature is below 300 ℃ and the pressure is below 40 kg (butterfly valves generally use low pressure, like domestic ones. It is rare to achieve CL600). The medium is generally used for water and gas, and the medium is not demanding. Granular medium can also be used. As a sealed  butterfly valve , it brought rapid development after the emergence of synthetic rubber, so it is a new type of shut-off valve.  Butterfly valves  were mainly used for low-pressure valves, and the valve seat was made of synthetic rubber. By the 1990s, due to increased exc...

  Fire Sprinklers Wetpipe systems Fire Sprinklers :- Wet pipe systems is the most commonly used fire sprinkler systems. Because it is very reliable and at the same time    simple. Basically it works like- in the event of a fire, water is provided to the piping via the sprinklers heads by an automatic water supply.   Drypipe systems Fire Sprinklers :- It is a    popular  fire sprinkler system  type. They are usually installed in unheated buildings i.e.. Parking    garages for example. Here the low ambient temperature may freeze the water in an ordinary wet pipe system, making it useless. Therefore, in this kind of sprinkler system, the water in the piping is replaced by air at a pressure below the water supply pressure. When one or more of the automatic sprinkler heads is activated, it opens so the air in the piping can come out from that sprinkler. The drop of the air pressure in the piping allows water to vent and control the fire. ...