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                                        閥門試壓方法之球閥試壓

                                        2016-11-03 0

                                        工業閥門在使用前和修補后都要進行試壓,閥門試壓常用的介質有水、油、空氣、蒸汽、氮氣等。今天就來跟大家講一下其中球閥的試壓方法:

                                        (PS:氣動球閥的強度試驗應在球體半開狀態下進行。)

                                        1.動式球閥密封性試驗:將閥處于半開狀態,一端引入試驗介質,另一端封閉;將球體轉動幾次,閥門處于關閉狀態時打開封閉端檢查,同時檢查填料和墊片處密封性能,不得有滲漏現象。然后從另一端引入試驗介質,重復上述試驗;

                                        2.固定式球閥密封性試驗:在試驗前將球體空載轉動幾次,固定式球閥處于關閉狀態,從一端引人試驗介質至規定值;用壓力表檢查引入端密封性能,使用壓力表精度05~1級,量程為試驗壓力的15倍。在規定時問內,沒有降壓現象為合格;再從另一端引入試驗介質,重復上述試驗。然后,將閥門處于半開狀態,兩端封閉,內腔充滿介質,在試驗壓力下檢查填料和墊片處,不得有滲漏;

                                        3.三通球閥應在各個位置上進行密封性試驗。

                                        億威仕公司專業研發生產閥門試壓設備,適用于各類型閥門的試驗需求,歡迎咨詢:0755-8889 8859 QQ459675648.

                                        北京赛车计划数据
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