FM 5130《Foam Extinguishing Systems》2021 has set up a section (4.26) specifically for the hydraulic motor driven proportioners, clarifying the requirements and test methods, which is more stringent than the previous requirements and makes the system m
More >>GB50151-2021 has defined the coupled water-turbine driven pump proportioning set, and recommends the use of coupled water-turbine driven pump proportioners in many articles. Because of the use of water turbine (hydraulic motor), no drainage channel i
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