<b style="mso-bidi-font-weight: normal"><span lang=en-us style="font-size: 14pt; font-family: verdana; mso-fareast-font-family: 楷體_gb2312; mso-bidi-font-family: 宋體; mso-ansi-language: en-us; mso-fareast-language: zh-cn; mso-bidi-language: ar-sa"> </span><span lang=en-us style="font-size: 14pt; font-family: 楷體_gb2312; mso-bidi-font-family: 宋體; mso-ansi-language: en-us; mso-fareast-language: zh-cn; mso-bidi-language: ar-sa; mso-hansi-font-family: verdana"> </span><span lang=en-us style="font-size: 14pt; font-family: verdana; mso-fareast-font-family: 楷體_gb2312; mso-bidi-font-family: 宋體; mso-ansi-language: en-us; mso-fareast-language: zh-cn; mso-bidi-language: ar-sa"> </span><span lang=en-us style="font-size: 14pt; font-family: 楷體_gb2312; mso-bidi-font-family: 宋體; mso-ansi-language: en-us; mso-fareast-language: zh-cn; mso-bidi-language: ar-sa; mso-hansi-font-family: verdana"> </span><span style="font-size: 14pt; font-family: 楷體_gb2312; mso-bidi-font-family: 宋體; mso-ansi-language: en-us; mso-fareast-language: zh-cn; mso-bidi-language: ar-sa; mso-hansi-font-family: verdana">柱塞閥是我廠引進德國格林格斯閥，結合國內實際研制開發，它的設計與制造是為了解決普通截止閥存在的缺陷，普通截止閥上密封采用坯根填料，無法排除外泄現象，下密封由閥瓣與閥體通道平面或角度密封（金屬密封），密封面因金屬間的磨損而導致泄漏，且維修困難；柱塞閥的關閉由一個不銹鋼柱塞、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，密封面積遠大于普通截止閥；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，保持與外界隔離，不致發生泄漏。</span><span lang=en-us style="font-size: 14pt; font-family: verdana; mso-fareast-font-family: 楷體_gb2312; mso-bidi-font-family: 宋體; mso-ansi-language: en-us; mso-fareast-language: zh-cn; mso-bidi-language: ar-sa"> </span><span lang=en-us style="font-size: 14pt; font-family: 楷體_gb2312; mso-bidi-font-family: 宋體; mso-ansi-language: en-us; mso-fareast-language: zh-cn; mso-bidi-language: ar-sa; mso-hansi-font-family: verdana"> </span><span lang=en-us style="font-size: 14pt; font-family: verdana; mso-fareast-font-family: 楷體_gb2312; mso-bidi-font-family: 宋體; mso-ansi-language: en-us; mso-fareast-language: zh-cn; mso-bidi-language: ar-sa"> </span></b>