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</span>http://www.qaomu.com</p><p><span>手機: </span>0577-57161116</p><p><span>地址: </span>柳市鎮(zhèn)凰嶼村</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="q222reg" class="page-proshow02"><p class="title">詳細說明</p><div id="f2u4qsu" class="box"><p><p style="text-indent:25px">雙針耐震壓力表基本誤差檢定：檢定用計量器具及實驗方法。（1）標準器的允許誤差值應不大于被檢壓力表允許誤差值的1/4；（2）標準器具可用彈簧管式精密壓力表和真空表、活塞式壓力計、活塞式真空壓力計；（3）輔助設(shè)備有，壓力校驗計、真空校驗計；（4）環(huán)境條件為，溫度在15~25℃之間，哈爾濱壓力表生產(chǎn)，相對濕度不大于85%。環(huán)境壓力為大氣壓，壓力表應在上述環(huán)境至少靜置2H方可檢；（5）工作介質(zhì)要求為，哈爾濱壓力表生產(chǎn)，測量上限不大于0.25MPA的壓力表，工作介質(zhì)為清潔空氣或無毒、無害和化學性質(zhì)穩(wěn)定的氣體。測量下限不大于（0，哈爾濱壓力表生產(chǎn).25~250）MPA的壓力表，工作介質(zhì)為無腐蝕性的液體；（6）以標有數(shù)字的標度線為檢驗點；（7）方法:采用儀表與標準器比較的方法進行檢驗；雙針耐震壓力表丈量蒸汽壓力時，壓力表下端應裝有環(huán)形管。哈爾濱壓力表生產(chǎn)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="哈爾濱壓力表生產(chǎn),壓力表" src="https://tyunfile.71360.com/UploadFile/ZJQMDQ/637444928617751630/3425134.png"></div><p style="text-indent:25px">不同型號的壓力表在各行業(yè)中的應用舉例：1、耐酸、耐腐壓力表：本儀表普遍用于石油、化工、化纖、冶金、電站等工業(yè)部門中對耐腐、抗振有要求較高的工藝流程中測量和各種流體介質(zhì)的壓力；2、冷媒壓力表：適用于介質(zhì)溫度較低或特殊介質(zhì)，如冷媒（氟利氨）或氨，應用于，空調(diào)，冷柜，或冷水機；3、不銹鋼真空壓力表：量測無腐蝕性或微蝕性，無炸裂性，無結(jié)晶，不沉淀的氣體或液體的負壓，或正壓和負壓；4、微型壓力表：適用被測量物的安裝空間狹小，或有特殊尺寸要求的。長春壓力表價格雙針耐震壓力表要保證完好的密封性，不能出現(xiàn)泄漏現(xiàn)象。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="哈爾濱壓力表生產(chǎn),壓力表" src="https://tyunfile.71360.com/UploadFile/ZJQMDQ/637453793684202552/9745306.png"></div><p style="text-indent:25px">雙針耐震壓力表顯示值有偏差的原因：1、示值在壓力一半附近超差。升壓以后，可在中間位置重新安裝指針，若不能消除誤差，就應該調(diào)整拉桿與扇形齒輪的夾角，進行綜合調(diào)整；2、*有一兩個點超差。檢查機芯在該點附近的配合情況，當為正差時，齒輪嚙合處有污物、毛刺；為負差時，齒牙磨損和有傷，應修補或更換；3、對一塊雙針耐震壓力表多次調(diào)整，但來回差依然超差，且指針不回零位，則可能是彈簧管變形，需重新更換，調(diào)整結(jié)束后，裝配好雙針耐震壓力表各部件，按照檢定規(guī)程重新進行檢測。</p><p style="text-indent:25px">壓力表的正確選擇：1、壓力表表盤分度數(shù)字及符號應完整清晰。表盤分度標尺應均勻分布、所包的中心角一般為270°，壓力表的指針應伸入所有分度線內(nèi)，其指針指示端寬度應不大于較小分度間隔的1/5。指針與分度盤平面間的距離應在1～3mm范圍內(nèi)，表殼外徑在200mm以上的，其指針與分度盤平面距離應在2～4mm范圍內(nèi)；2、帶有止銷的壓力表，在無壓力或真空時指針應緊靠止銷，“縮格”不得超過規(guī)定的允許誤差；3、壓力表表殼應能保護內(nèi)部機件不受污染，壓力表應裝有安全孔，安全孔上需有防塵裝置。雙針耐震壓力表為外殼內(nèi)填充阻尼液的儀表。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="哈爾濱壓力表生產(chǎn),壓力表" src="https://tyunfile.71360.com/UploadFile/ZJQMDQ/637453793582727575/4534726.png"></div><p style="text-indent:25px">壓力表精度等級的選取：根據(jù)工藝生產(chǎn)允許的較大誤差和選定的儀表較程、計算出儀表允許的較大引用誤差，在國家規(guī)定的精度等級中確定儀表的精度。一般來說，所選用的儀表越精密，則測量結(jié)果越精確、可靠。但不能認為選用的儀表精度越高越好，因為越精密的儀表一般價格越貴，操作和維護越費事。選用舉例：1、用于測量黏稠或酸堿等特殊介質(zhì)時，應選用隔膜壓力表、不銹鋼彈簧管、不銹鋼機芯、不銹鋼外殼或膠木外殼。按其所測介質(zhì)不同，在壓力表上應有規(guī)定的色標，并注明特殊介質(zhì)的名稱，氧氣表必須標以紅色“禁油”字樣，氫氣用深綠色下橫線色標，氨用黃色下橫線色標等等。2、靠墻安裝時，應選用有邊緣的壓力表；直接安裝于管道上時，應選用無邊緣的壓力表；用于直接測量氣體時，應選用表殼后面有安全孔的壓力表。出于測壓位置和便于觀察管理的考慮，應選擇表殼直徑的大小。電接點壓力表可直接用于壓力控制，或控制發(fā)訊。長春壓力表價格</p><p style="text-indent:25px">不銹鋼耐震壓力表能滿足激烈震動之場所。哈爾濱壓力表生產(chǎn)</p><p style="text-indent:25px">千牛壓力表常見故障及調(diào)修方法：一、千牛壓力表壓力去掉后，針不能恢復到零點；1、指針打彎或松動，可用鑷子矯正，校驗后敲緊；2、游絲力矩不足，可脫開中心齒輪與扇形齒輪的嚙合，反時針旋動中心齒輪軸以增大游絲反力矩；3、傳動齒輪有摩擦，調(diào)整傳動齒輪嚙合間隙。二、當所加壓力達到千牛壓力表測量上限刻度值時，千牛壓力表的指針仍不動或很少移動，說明壓力未傳到彈簧管。應先檢查千牛壓力表校驗器連接的密封墊片是否將接頭處通道堵死。若連接處沒有問題，則證明千牛壓力表內(nèi)部堵塞，應予清洗。哈爾濱壓力表生產(chǎn)</p><p style="text-indent:25px">浙江喬木電氣科技有限公司致力于儀器儀表，是一家生產(chǎn)型公司。公司業(yè)務分為雙針耐震壓力表，綜采測壓表，單體支柱測壓儀，礦用高壓注水流量計等，目前不斷進行創(chuàng)新和服務改進，為客戶提供良好的產(chǎn)品和服務。公司秉持誠信為本的經(jīng)營理念，在儀器儀表深耕多年，以技術(shù)為先導，以自主產(chǎn)品為重點，發(fā)揮人才優(yōu)勢，打造儀器儀表良好品牌。在社會各界的鼎力支持下，持續(xù)創(chuàng)新，不斷鑄造***服務體驗，為客戶成功提供堅實有力的支持。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2759406.html</p></div></div></div></div></div><div id="fegqrtf" class="page-right twoColRt"><div id="ujqse24" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="xr3i8tv" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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