RETZ瑞茨『進口法蘭柱塞閥』詳細介紹●RETZ柱塞閥系列●RETZ法蘭柱塞閥●產(chǎn)品數(shù)據(jù)
?進口法蘭柱塞閥描述--
RETZ法蘭柱塞閥通常用分為法蘭和對焊連接,是由一個不銹鋼柱塞、上下兩只富彈性密封圈及一個金屬隔框組成,密封圈是柱塞閥的關鍵零件,它由聚四氟乙烯、石墨、高彈性膠等組成,經(jīng)百萬次往復運動測試,仍可提供良好的密封性能,當手輪旋轉時,通過閥桿帶動柱塞在孔架中間上下往復運動來完成閥門的開啟與關閉功能。
RETZ flanged plunger valves are usually divided into flanges and butt joints, which are made up of a stainless steel plunger, two up and down elastic seals and a metal frame. The sealing ring is the key part of the plunger valve. It is composed of polytetrafluoroethylene, graphite, high elastic glue and so on. It can still provide good density after millions of reciprocating tests. When the handwheel rotates, the piston can drive the plunger to move up and down in the middle of the hole frame to complete the opening and closing function of the valve.
?進口法蘭柱塞閥原理--
柱塞閥的密封效果由柱塞與密封圈緊密配合來達到,柱塞插在兩只密封圈中,開關柱塞閥時,柱塞在密封圈中緩慢移動,接觸面幾乎不磨損,關閉時,柱塞插入下密封圈,截斷流道;開啟時,柱塞雖然脫離下密封圈,但仍藏在上密封圈內(nèi),保持與外界隔離,不致發(fā)生泄漏。
?進口法蘭柱塞閥特點--
耐磨、回彈性好;
具有良好復原特性
開啟力矩小,適用介質(zhì)廣;
密封面積大,性能可靠;
閥門啟閉穩(wěn)定,維修方便;
閥瓣有導向套的定位,在壓力急劇變化時柱塞不會產(chǎn)生振動與旋轉;
?進口法蘭柱塞閥執(zhí)行標準
設計規(guī)范: GB/T 12235 ASME B16.34
結構長度: GB/T 12221 ASME B16.10
法蘭連接: GB/T 9113 ASME B16.5
承插焊連接:JB/T 1751 ASME B16.11
螺紋連接: GB7036 ASME B1.20.1
試驗與檢驗:GB/T 13927 API 598;
?進口法蘭柱塞閥參數(shù)--
規(guī)格尺寸:DN15-DN200;
工作壓力:PN1.6-PN4.0Mpa;
介質(zhì)溫度:-20℃-425℃;
閥體材質(zhì):鑄鋼、不銹鋼;
密封材質(zhì):金屬不銹鋼、高溫石墨;
填料材質(zhì):柔性石墨、PTFE;