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                                        消防水槍壓力試驗方法

                                        2015-11-13 0

                                        消防水槍壓力試驗方法

                                        1、耐高溫試驗

                                        1.1 將水槍至于電熱鼓風干燥箱內,在55℃下保溫4h,取出后半分鐘內檢查。檢查結果應滿足3.5要求。

                                        1.2 電熱鼓風干燥箱應符合ZB Y 149-83《干燥箱技術條件》規定的要求(溫度波動±1℃,溫度均勻性系數為±0.025)。

                                        2、耐低溫試驗

                                        2.1 將擦洗干凈的干燥水槍置于低溫箱內,在-30℃下保溫4h,取出半分鐘內檢查。

                                        3、密封性試驗、強度試驗

                                        3.1 試驗裝置允許工作壓力應大于2MPa。穩壓精度為±2%。裝置中的壓力表精度等級不低于1.5級。

                                        3.2 關閉水槍的開關閥,水槍的進水端通過接口與試驗裝置相連,然后對水槍加壓,加壓過程中必須先排除槍體內的空氣,當壓力表上的讀數達到0.9MPa后,保壓2min,。

                                        3.3 打開水槍的開關閥,水槍的進水端通過接口與試驗裝置相連,封死水槍的出水端。重復3.2的加壓和保壓過程。

                                        3.4 水槍狀態同3.3,加壓過程中必須先排除槍體內的空氣,當壓力表上的讀數達到1.6MPa后,保壓2min。

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