壓力表變送器接觸液的材料選擇

壓力表變送器接觸液的材料選擇￡=卓越的防御能力，腐蝕率＜0.002”(0.05mm)/年，是膜片材料的最佳選擇。注：腐蝕率的數(shù)據(jù)僅對膜片材料才正確，不適用于選擇壓力容室和接頭材料的。當(dāng)選擇壓力容室、接頭和O型圈材料時描述材料的性能采用“E、G、F和P等級別，即卓越的，很好的和差的。G=很好的防御能力，腐蝕率＜0.02”(0.5mm)/年。F=好的抵御能力，腐蝕率0.02”?0.05”(0.5mm?1.27mm)/年。P=差的抵御能力，腐蝕率＞0.05”(1.27mm)/年。-=無數(shù)據(jù)上標(biāo)1=可引起應(yīng)力腐蝕斷裂上標(biāo)2=可引起麻點(diǎn)上標(biāo)*=表示被測介質(zhì)可以是暴露于大氣中或未暴露在大氣中兩者對材料的性能要求有重要的不同。表中以“/”把兩字母隔開(暴露于空氣/未暴露于空氣的數(shù)據(jù))。除非另有說明，所有數(shù)據(jù)以20°C為準(zhǔn)介質(zhì)壓力容室與接頭隔離膜片接液O型圈316SST不銹鋼豕耐爾哈氏合金C碧豕鍍鎳的碳鋼316SST不銹鋼豕耐爾哈氏合金C鉭丁晴橡膠氟橡膠聚四氟乙烯乙烯丙烯橡膠醋酸Aceticacid(<50%)EG/EEP/FG/EEF/EEEGFEE醋酸Aceticacid(>50%)EG/EEP/FG/EE/GF/EEEGFEE醋酸Aceticacid(<50%，<93C)EP/EEPEP/EEEPPEE醋酸Aceticacid(>50%，<93C)EP/EEPGP/EEEPPEE醋酸Aceticacid(>50%，>93C)F/--/E-/EPP/--/E-/EEPPEE乙快Acetylene(100%，<121C)EEEEEEEEGEEE乙醇AlcoholsEEEGEEEEGEEE空氣AirEEEEEEEEEEEE硫酸鋁Aluminumsulfate(<50%，<93C)EGEPEFEEFEEG硫酸鋁Aluminumsulfate(>50%，<93C)FFEPPPEEFEEG氨Ammonia(無水，<242C)EEEEEEE-GPEG醋酸銨Ammoniumacetate(<93C)EEEEEEEEGPEE碳酸氫銨Ammoniumbicarbonate(<79.5C)EPEPEPGEPEEE漠化銨Ammoniumbromide(<20%)EEEGG2GGE--E-氯化銨Ammoniumchloride(<10%，<93C)EEEGE1.2GEEPEEE

氯化銨Ammoniumchloride((10%-20%,<93°C)EEEGG1.2GEEPEEE氫氧化銨Ammoniumhydroxide(<40%)EFEFEPEPPFEG硝酸銨Ammoniumnitrate(<93C)EFEFEPGEEEEE草酸銨Ammoniumoxalate(<40%,<93C)EEEPGGGEEEE-磷酸氫銨Ammoniumphosphate(單基)EGEFEFEEGEEG磷酸氫二胺Ammoniumphosphate（雙基）EGE-EFE-GEEG磷酸三銨Ammoniumphosphate(三基)EEE-EGE-GEEG硫酸銨Ammoniumsulfate(<40%,<93C)EFEGGFGEGEEE苯胺Aniline(100%,<93C)EEEGEGGEGGEG啤酒BeerEEEEEEEEGEEF黑液BlackLiguor(Sulfate硫酸酯)EGE-G1.2GEEFGE-鹽水（鈣，沖淡）Brines（Calcium,dil）GGEGP2FEEEEEE漠(干)Bromine(dry)FFFGPPPEPGEP漠(濕)Bromine(wet)FFFFPPPEPGEP碳酸鈣Calciumcarbonate(100%,<93C)EEEEEGGEEEEG氯化鈣Calciumchloride(<50%)EEEEG1.2GEEEEEE氯化鈣Calciumchloride(>50%)E-EGG1.2-EEFGEG硫酸鈣(飽和)Calciumsulfate(Sat.)EEEEGGGEEEEG二氧化碳（氣體）Carbondioxide（gas）EEEEEEEEEGE-碳酸Carbonacid(100%,<260C)EEEEEEEEGEEE四氯化碳(干、濕)Carbontetrachloride(drywet)EEEEGEEEFGEF被測介質(zhì)壓力容室與接頭隔離膜片接液O型圈316SST不銹鋼豕耐爾哈氏合金C碧豕鍍鎳的碳鋼316SST不銹鋼豕耐爾哈氏合金C鉭丁晴橡膠氟橡膠聚四氟乙烯乙烯丙烯橡膠醋酸纖維Celluloseacetate(100%,<46.5C)EEEGEGEEPPEE硝酸纖維Cellulosenitrate(100%,<93C)EEEGGGGE- -E-氯酸Chloricacid(<20%)PPEPPPEEPPE-氯水(飽和)Chlonatedwater(Sat)PGEFP1.2FEEPEEP

氯氣(干)Chlorinegas(dry)GGEGFGGEPGEP氯氣(濕)Chlorinegas(wet)PGGPP1.2GFEPPE-氯氣(液體，無水)Chlorinegas(lig.Anhydros)FGE-PGGEPGE-氯仿Chloroform(80%-100%,<93°C)EEEEGEGEPGEP檸檬酸Citricacid(<50%,<93C)EEEGEGEEGGEF檸檬酸Citricacid(>50%,<93C)PEEGPGEEGEEF原油(酸性)Crude(Sour)EEE-GEE-GGEP二氯乙烯Ethylenedichloride(100%,<93C)EEEGG1.2GGEPGEP三氯化鐵Ferricchloride(<10%)PFEPP1.2PEEGGEF三氯化鐵Ferricchloride(<40%，熱hot)PPGPP1.2PFEGGEF氟里昂(氣體，濕)Freon(gas,wet)EEEFGEEEGPEP果汁FruitjuicesEE--EG--GEEE甘油Glycerol(0%-100%,<93C)EEEGEEEEEEEE堿化液(氫氧化鈉)Greenliquor(NaOH)EEEEEEEEPGE-堿化液(硫酸鹽)Greenliquor(Sulfate<93C)EEEEGGGGEEE鹽酸Hydrochloricacid(<1%)PGGGPGGEFEEG鹽酸Hydrochloricacid(>2%,RT空溫-Hot熱)PPFPPPPEPEEF氫氟酸Hydrofluoricacid(<50%)PEEGPGGPPEEF氫氟酸Hydrofluoricacid(>50%)PEGFPGGPPGEF氯化氫Hydrogenchloride(Anhydros無水<260C)GEEEFGEEGEE-氯化氫Hydrogenchloride(wet濕)FFFFPP-EPEE-氟化氫Hydrogenfluoride(dry干，<260C)GEEEFGGPPEE-氫氣Hydrogengas(<260C)EEEEEEEEFGEG過氧化氫HydrogenperoxideEFEFGPEEPEEF硫化氫Hydrogensulfide(dryEEEGEGGEEEEE

干，<93°C)硫化氫Hydrogensulfide(wet濕，<93C)GFEGG1.2PEEPEFG異丙醇Isopropanol(<93C)EEEEEEEE- - - -甲醇Methanol(<93C)EEEEGGEEEFE-天然氣Naturalgas(liq.液體EEEEEEEEEEEP硝酸Nitricacid(20%)EPGPEPPEPEEP硝酸Nitricacid(20%,93C)EPPPGPPEPGEP硝酸Nitricacid(65C,boil沸騰)GPPPPPPEPFEP被測介質(zhì)壓力容室與接頭隔離膜片接液O型圈316SST不銹鋼豕耐爾哈氏合金C碧豕鍍鎳的碳鋼316SST不銹鋼豕耐爾哈氏合金C鉭丁晴橡膠氟橡膠聚四氟乙烯乙烯丙烯橡膠硝酸NitricAcid(cone濃，hot熱)PPFPPPPEPPEP硝酸NitricAcid(fuming發(fā)煙)EPGPEPGEPFEP一氧化二氮NitrousOxideGPGPGPGEPEE-氧氣OxygengasEEEEEEEEGEEE光氣Phosphoric（RT室溫-hot執(zhí)）八、、fGEEEGEG-PPE磷酸Phosphoricacid(<50%)EF/E-/EF/GEP/E-/E-/EFEEG磷酸Phosphoricacid(>50%)GP/E-/EPGP/E-/E-/EFEEG磷酸Phosphoricacid(<10%,boil沸騰)FP/G-/GPP/GP/G-/G-/EPEEG磷酸Phosphoricacid(85%,boil沸騰)P/FP/G-/FPP/FP/G-/F-/EPEEG聚乙烯Polyethylene(100%,<93C)EEEEEEEE- - - -聚氯乙烯PolyvinylchlorideEE-GEG- -PEEG氯化鉀Potassiumchloride(<40%,<93C)EEEGEGEEFEEG硝酸鉀Potassiumnitrate(<93C)EEEEGGGEEEE丙烷Propane(100%<93C)EEEEEEEEEEEP二氯丙烯Propylenedichloric(100%)EEEEGGG- - - -氧化丙烯Propyleneoxide(<93C)E---E-- -PPEE污水SewageEEEEEEEEEEEG

氯化鈉Sodiumchloride(<40%,<93°C)EEEFGEEEEEEG氫氧化鈉Sodiumhydroxide(50%)EEEEEEEPFGE-氫氧化鈉Sodiumhydroxide(<40%,<65.5C)EEEEEEGPPFEG氫氧化鈉Sodiumhydroxide(40%-75%,<65.5C)EEEEGEGPPPE-氫氧化鈉Sodiumhydroxide(melton熔化)FFPGPFPPPPP-蒸汽Steam(<260C)EEEEEEEEPFEP苯乙烯StyreneEEEEEGE-----硫Sulfur(melton熔化dry干110C)干EEEGGGEEPEEG二氧化硫Sulfuricdioxide(dry干)EPGPGPFEPGEE二氧化硫Sulfuricdioxide(wet濕)EPEPGPFEPFEG硫酸Sulfuricacid(<20%)E/GF/EEPPP/GEEGEEP硫酸Sulfuricacid(2%-40%)F/PE/GEG/PPE/GEEFEEP硫酸Sulfuricacid(cone濃，>95%)EPEPGPEEPGEP硫酸Sulfurica