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</li> <li ><a href="/index.php?case=archive&act=list&catid=6" title="技术支持" target="" class="one">技术支持</a> </li> <li ><a href="/index.php?case=archive&act=list&catid=9" title="联系我们" target="" class="one">联系我们</a> </li> </ul> <div class="nav_btn"><span></span></div> </div> <div class="clear"></div> </div> </div> </div> </header> <div class="banner_nei"> <div class="banner_nei_center"> <div class=bg> <img src="https://www.xipaiyb.com//cn/upload/images/202107/16267491394741.jpg" /> </div> <div class=txt> <h1>行业新闻 </h1> <p></p> </div> </div> </div> <div class="box box2"> <div class="box2_t"></div> <div class="box2_b"></div> <div class="left"> <!--只展开当前栏目所在一级栏目下的分类--> <div class="left1" > <div id="catalog" > <ul class="topmenu"> <li ><a title="公司新闻" href="/index.php?case=archive&act=list&catid=22" ><span class="figure mr5"></span>公司新闻</a> <ol class="submenu"> <i></i> </ol> </li> <li class="on" ><a title="行业新闻" href="/index.php?case=archive&act=list&catid=23" class="on"><span class="figure mr5"></span>行业新闻</a> <ol class="submenu"> <i></i> </ol> </li> </ul> </div> <!--只展开当前栏目所在一级栏目下的分类--> </div> </script></div> <div class="right"> <div class="right1 news_lists"> <div id="content"> <div class="wz_title"><h3>压力表选型全攻略：仪表工程师必看的避坑指南！</h3></div> <div class="contentinfo pc_show">作者：<a>xpyb</a> 添加时间：2025-08-18 08:36:58 </div> <!-- 正文 --> <p>在油气田生产中，压力表是监测工艺安全的"眼睛"。但您是否知道：表压≠******压力？1.6级与0.4级精度差在哪？耐震表灌硅油为何不能装满？本文将揭秘压力表选型八大黄金法则，助您精准避坑！</p><p><section><br/></section></p><h3>一、压力表的"三副面孔"：******压力/表压/真空度</h3><p>1️⃣ ******压力（Pj）<br/>容器承受的真实压力值，包含大气压，相当于物理学的"******压强"。</p><p><br/></p><p>2️⃣ 表压（Pb）<br/>生产现场***常用！计算公式：Pb=Pj-Pq（大气压），普通压力表显示的即是表压值。</p><p><br/></p><p>3️⃣ 真空度（Pz）<br/>当******压力＜大气压时，真空表显示的数值=│Pb│，真空加热炉须***配置此类仪表。</p><p><section><br/></section><section>二、油气田常用压力表双雄</section></p><table width="677"><thead style="-webkit-tap-highlight-color: transparent; margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><tr style="-webkit-tap-highlight-color: transparent; margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;" class="firstRow"><th style="-webkit-tap-highlight-color: transparent; margin: 0px; padding-left: 0px; outline: 0px; word-break: break-all; hyphens: auto; border-top: 1px solid rgb(var(--ds-rgb-label-3)); border-bottom: 1px solid rgb(var(--ds-rgb-label-3)); background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; max-width: 100%; color: rgb(var(--ds-rgb-label-1)); text-align: left; overflow-wrap: break-word !important; box-sizing: border-box !important;">类型</th><th style="-webkit-tap-highlight-color: transparent; margin: 0px; outline: 0px; word-break: break-all; hyphens: auto; border-top: 1px solid rgb(var(--ds-rgb-label-3)); border-bottom: 1px solid rgb(var(--ds-rgb-label-3)); background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; max-width: 100%; color: rgb(var(--ds-rgb-label-1)); text-align: left; overflow-wrap: break-word !important; box-sizing: border-box !important;"><section>精度等级</section></th><th style="-webkit-tap-highlight-color: transparent; margin: 0px; outline: 0px; word-break: break-all; hyphens: auto; border-top: 1px solid rgb(var(--ds-rgb-label-3)); border-bottom: 1px solid rgb(var(--ds-rgb-label-3)); background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; max-width: 100%; color: rgb(var(--ds-rgb-label-1)); text-align: left; overflow-wrap: break-word !important; box-sizing: border-box !important;"><section>表盘直径</section></th><th style="-webkit-tap-highlight-color: transparent; margin: 0px; outline: 0px; word-break: break-all; hyphens: auto; border-top: 1px solid rgb(var(--ds-rgb-label-3)); border-bottom: 1px solid rgb(var(--ds-rgb-label-3)); background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; max-width: 100%; color: rgb(var(--ds-rgb-label-1)); text-align: left; overflow-wrap: break-word !important; box-sizing: border-box !important;"><section>应用场景</section></th></tr></thead><tbody style="-webkit-tap-highlight-color: transparent; margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><tr style="-webkit-tap-highlight-color: transparent; margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><td style="-webkit-tap-highlight-color: transparent; margin: 0px; padding-left: 0px; outline: 0px; word-break: break-all; hyphens: auto; border-bottom: 1px solid rgb(var(--ds-rgb-label-3)); max-width: 100%; overflow-wrap: break-word !important; box-sizing: border-box !important;">普通压力表</td><td style="-webkit-tap-highlight-color: transparent; margin: 0px; outline: 0px; word-break: break-all; hyphens: auto; border-bottom: 1px solid rgb(var(--ds-rgb-label-3)); max-width: 100%; overflow-wrap: break-word !important; box-sizing: border-box !important;"><section>1.6级</section></td><td style="-webkit-tap-highlight-color: transparent; margin: 0px; outline: 0px; word-break: break-all; hyphens: auto; border-bottom: 1px solid rgb(var(--ds-rgb-label-3)); max-width: 100%; overflow-wrap: break-word !important; box-sizing: border-box !important;"><section>100mm</section></td><td style="-webkit-tap-highlight-color: transparent; margin: 0px; outline: 0px; word-break: break-all; hyphens: auto; border-bottom: 1px solid rgb(var(--ds-rgb-label-3)); max-width: 100%; overflow-wrap: break-word !important; box-sizing: border-box !important;"><section>常规工艺管线、容器监测</section></td></tr><tr style="-webkit-tap-highlight-color: transparent; margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><td style="-webkit-tap-highlight-color: transparent; margin: 0px; padding-left: 0px; outline: 0px; word-break: break-all; hyphens: auto; border-bottom: 1px solid rgb(var(--ds-rgb-label-3)); max-width: 100%; overflow-wrap: break-word !important; box-sizing: border-box !important;">精密压力表</td><td style="-webkit-tap-highlight-color: transparent; margin: 0px; outline: 0px; word-break: break-all; hyphens: auto; border-bottom: 1px solid rgb(var(--ds-rgb-label-3)); max-width: 100%; overflow-wrap: break-word !important; box-sizing: border-box !important;"><section>0.4级</section></td><td style="-webkit-tap-highlight-color: transparent; margin: 0px; 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