閥門密封圈,密封材質介紹,密封材質說明 - 廣州富山閥門有限公司_威客电竞

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緻力于提升客戶品牌形象、實現客戶商業目标!

Commitment to enhance customer brand image,customer business goals!

 

閥門密封材料簡介

2015-10-13 11:47:54| 發布者: 廣州富山閥門有限公司| 查看: 2034

閥門密封材料是閥門密封的重要組成部分,它擔任閥門密封直接接觸的面。那閥門密封材料都有哪些呢,我們知道閥門密封圈材料有金屬和非金屬兩大類。下面就簡單介紹一下各類密封材料的使用條件,以及常用的閥門類型  
    1、合成橡膠  
    合成橡膠的耐油、耐溫、耐腐蝕等綜合性能優于天然橡膠。一般合成橡膠的使用溫度t≤150,天然橡膠t≤60,橡膠用于公稱壓力PN≤1MPa的截止閥、閘閥、隔膜閥、蝶閥、止回閥、夾管閥等閥門的密封。
    2、尼龍
    尼龍具有摩擦系數小、耐腐蝕性好等特點。尼龍多用于溫度t≤90、公稱壓力PN≤32MPa的球閥、截止閥等。 
    3、聚四氟乙烯  
   聚四氟乙烯多用于溫度t≤232、公稱壓力PN≤6.4MPa的截止閥、閘閥、球閥等。  
    4、鑄鐵 
    鑄鐵用于溫度t≤100、公稱壓力PN≤1.6MPa、煤氣和油類用的閘閥、截止閥、旋塞閥等。
    5、巴氏合金  
    巴氏合金用于溫度t-70~150、公稱壓力PN≤2.5MPa的氨用截止閥。
    6、銅合金  
    銅合金常用材料有6-6-3錫青銅和58-2-2錳黃銅等。銅合金耐磨性好,适用于溫度t≤200、公稱壓力PN≤1.6MPa的水和蒸汽中,常用于閘閥、截止閥、止回閥、旋塞閥等。
    7、鉻不鏽鋼  
    鉻不鏽鋼常用牌号有2Cr133Cr13經調質處理,耐腐蝕性能好。常用于溫度t≤450、公稱壓力PN≤32MPa的水、蒸汽和石油等介質的閥門上。
    8、鉻鎳钛不鏽鋼  
    鉻鎳钛不鏽鋼常用牌号為1Cr18Ni9ti,其耐腐性、耐沖蝕性和耐熱性能較好。适用于溫度t≤600、公稱壓力PN≤6.4MPa的蒸汽、硝酸等介質中,用于截止閥、球閥等。  
    9、滲氮鋼  
    滲氮鋼常用牌号是38CrMoAlA,經滲碳處理,具有良好的耐腐蝕性和抗擦傷性。常用于溫度t≤540、公稱壓力PN≤10MPa的電站閘閥。  
    10、滲硼  
    滲硼由閥體或閥瓣本體材料直接加工出密封面,再進行滲硼表面處理,密封面耐磨性能很好。用于電站排污閥。

以上内容由廣州朱閥閥門有限公司整理提供,如有疑問請與我們聯系。

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