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2020-08-05
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熔體壓力表一般分為兩類: A. 一類是指針式的不銹鋼熔體壓力表(代表型號是PT135)。 指針式的熔體壓力表的優點: 是不需要外接電源,通過探頭將壓力傳遞給精密彈簧,帶動指針顯示壓力??蓮V泛應用與化纖、石油、塑料、橡膠等行業無電力設備或無...
耐震壓力表概述: 耐震壓力表由導壓系統(包括接頭、彈簧管、限流螺釘等)、齒輪傳動機構、示數裝置(指針與度盤)和外殼(包括表殼、表蓋、表玻璃等)所組成。 耐震壓力表外殼為氣密型結構,能有效地保護內部機件免受環境影響和污穢侵入。 耐震壓力表在外殼內填充阻尼...
膜盒壓力表采用膜盒作為測量微小壓力的敏感元件。測量對銅合金不起腐蝕作用、無爆炸危險氣體的微壓和負壓,廣泛應用于鍋爐通風、氣體管道、燃燒裝置等其他類似設備上。 不銹鋼膜盒壓力表根據導壓系統及外殼均采用不銹鋼材料制成。應用于耐腐蝕要求較高的工藝流程中對各種氣體介質的微壓和負壓的測量。...
壓力表應根據鍋爐或受壓容器的工作壓力來選擇壓力表的精度等級。當鍋爐或受壓容器的1.作壓力小于2.5MPa時,壓力表的精度不應低于2.5級;工作壓力大于2.5MPa時,精度不應低于1.5級。也就是說,其介質的工作壓力越高,要求壓力表的精度越高。 壓力表在選擇表盤刻度范圍值時,一般在...
   

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