国产一级a毛一级a看免费视频,久久久久久国产一级AV片,免费一级做a爰片久久毛片潮,国产精品女人精品久久久天天,99久久久无码国产精品免费了

一、產品簡介   Product Brief
    Y系列化工廠不銹鋼壓力表廣泛應用于石油、化工、化纖、冶金、電站等工業部門對耐蝕、抗振要求較高的工藝流程中測量各種流體介質的壓力。

   Y series All stainless steel pressure gauge Widely used in petroleum, chemical industry, chemical fiber, metallurgy, power plants and other industrial sectors

    Y系列化工廠不銹鋼壓力表的整體結構設計合理、工藝精致，具有較高的測量精確度和持久的穩定性，因此不僅可提供出口，尤為國內用戶對引進*進技術裝備中的同類儀表實現國產化的理想配套產品。
   Y series All stainless steel pressure gauge  The overall structure and reasonable design, fine craft, With high measurement precision and lasting stability, So not only can provide export, Especially the domestic users to the imported instrument of foreign advanced technology and equipment in the To achieve the ideal accessory products localization.

二、結構原理   The structure principle
    Y系列化工廠不銹鋼壓力表由導壓系統(包括接頭、彈簧、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。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。對于在外殼內充液(一般為硅油或甘油)的儀表，能夠抗工作環境振動較劇烈和減少介質壓力的脈動影響。
   Yseries All stainless steel pressure gauge By the pressure guide system (including joints, spring, limiting screws), The gear transmission mechanism, showing the number of devices (pointer and dial) and the housing (including watchcase, table covers, table glass) formed. The shell is hermetically sealed structure, Can effectively protect the internal components from environmental influences and dirty invasion. For in the shell filled with liquid (usually a silicone oil or glycerin) instrument, Resistant to environmental vibration is violent And the influence of pressure pulsation reducing medium.

三、技術指標    Technical indicators
使用環境溫度：-25～70℃(外殼內充液)

             -40～70℃(外殼內不充液)

Use environment temperature: -25～70℃(shell filling)

                             -40～70℃(shell no liquid filled)

溫度影響：不大于0.4%/10℃(使用溫度偏離20±5℃)

The influence of temperature: Not more than 0.4%/10℃(using the temperature deviation from the 20±5℃)

抗工作環境振動：V·H·4級(外殼內充液)
                V·H·3級(外殼內不充液)

The work of anti vibration environment: V·H·4 Level(shell filling)

                                        V·H·3 Level(shell no liquid filled)

外殼防護等級：IP64    Shell protection grade: IP64

重量：0.4kg(Y-60BF)     0.5kg(Y-100BF)    1.0kg(Y-150BF)

      0.6kg(Y-60BFZ)    0.8kg(Y-100BFZ)   1.5kg(Y-150BFZ)
Weight:0.4kg(Y-60BF)    0.5kg(Y-100BF)    1.0kg(Y-150BF)

       0.6kg(Y-60BFZ)   0.8kg(Y-100BFZ)   1.5kg(Y-150BFZ)