Izinto zokwakha (Thermoplastics)

Izinto zokwakha (i-Thermoplastics): i-polymer® PTFE (i-Polytetrafluoroethylene), i-PVDF (i-Polyvinylidene Fluoride), i-PP (i-Polypropylene), i-CPVC (i-Chlorinated Polyvinyl Chloride), i-PVC (i-Polyvinyl Chloride)

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I-PVC (iPolyvinyl Chloride)

Olona khetho lunoqoqosho kunye nelona lukhulu lweChemline valves lubunjwe ukusuka kwiPVC.Inika iipropathi ezigqwesileyo zoomatshini kunye neekhemikhali zokumelana nexabiso eliphantsi.Iqondo lokushisa elisebenzayo leevalve ze-PVC yi-0 ukuya kwi-60 ° C (30 ukuya kwi-140 ° F).I-PVC esetyenziselwa iivalve ze-Chemline ichongiwe ngenombolo yokuhlelwa kweeseli 11564-A ngokwe-ASTM Standard D 1784. Isimamva "A" sibhekisela kwizinga eliphezulu lokumelana neekhemikhali.Uninzi lwezinye iivalve ze-PVC kunye nombhobho kunye nezixhobo zinezinga lokumelana neekhemikhali "B" kuphela.I-PVC ekhethekileyo "A" i-compound esetyenziswa kwii-valve ze-Chemline ixhathisa ukuhlaselwa kwee-acids ezininzi, i-alkalais eqinile, iityuwa kunye nezinye iikhemikhali ezininzi.Ukuchasana kweekhemikhali eziphakamileyo zesi sixhobo kuvumela ukusetyenziswa kwayo kwiinkonzo ezinobundlobongela ezifana ne-98% H2 SO4, i-chlorine eyomileyo kunye noxinzelelo oluphantsi lwegesi ye-chlorine emanzi.I-PVC ihlaselwa yi-hydrocarbons eneklorini, ii-ketones, ii-esters kunye nezinye iikhompawundi ezinevumba elimnandi.Ingasetyenziswa kwizisombululo eziqulathe ukuya kuthi ga kwi-1000 ppm solvents.Iivalvu zeChemline zePVC azinatyhefu.Bahlangabezana ne-CSA esemgangathweni ye-B137.0 ye-toxicity.Abaxhathisi kwimiphumo eyingozi yokukhanya kwelanga kunye nemozulu, ngoko ukupeyinta akuyimfuneko.

CPVC (Chlorinated Polyvinyl Chloride)

I-CPVC ifana kakhulu ne-PVC kwiipropati zoomatshini kunye nokumelana nemichiza.Ifanelekile kwizicelo ezivela kwi-0 ukuya kwi-95 ° C (30 ukuya ku-200 ° F) .I-compound ekhethekileyo ye-CPVC esetyenziselwa i-valve ye-Chemline ihlelwa njenge-23567-A njenge-ASTM D 1784. Isimamva "A" sichaza ukuhambelana neyona khemikhali iphezulu. ukukala ukumelana.Ikhompawundi ayinayo ityhefu, ihambelana ne-CSA yetyhefu yomgangatho we-B137.0.CPVC izivalo zibonakalise ukuba lolona khetho lubalaseleyo kwizicelo kumaqondo obushushu aphezulu kakhulu kwi-PVC okanye xa kufuneka umda owongezelelweyo wokhuseleko.

I-PP (iPolypropylene)

I-PP bubunzima obulula kwaye buphezulu kwimichiza yokuchasa.Iivalvu zilungele inkonzo ukusuka -20 ukuya ku-90°C (-5° ukuya ku-195°F).I-PP ayinakuchaphazeleka yi-alkalais, i-salts, i-solvents eziphilayo kunye ne-acids ezininzi, ngakumbi i-hydrochloric kunye ne-phosphoric acid.Ayifanelekanga kwi-acids eqinile, i-hydrocarbons e-chlorine, i-aromatics compounds kunye nokugxininiswa okuphezulu kwe-chlorine yamahhala.PP i-inert kakhulu ngoko ithandwa kakhulu kwizicelo zokucoceka okuphezulu ezifana namanzi adibeneyo, njl njl. ukukhanya kwe-ultraviolet.Imathiriyeli yendalo eguquguqukayo ngaphandle kwe-pigment iya kuthotywa ukuba ibekwe kukukhanya kwe-UV (ukukhanya kwelanga).I-Chemline inikezela ngombhobho wePP, izixhobo kunye neevalvu kwi-pigmented and unpigmented PP, zombini ezivunyiweyo yi-FDA ukudibanisa nokutya.

I-PVDF (iPolyvinylidine Fluoride)

I-PVDF iphakamile kunezinye i-valve thermoplastics ekuxhathiseni iikhemikhali kunye nokuxhathisa i-abrasion.Inamandla amangalisayo ngaphezu kowona mgangatho mkhulu wobushushu osebenzayo.Uluhlu lobushushu obusebenzayo lweevalvu ze-PVDF yi--40 ukuya kwi-120 ° C (-40 ukuya kwi-250 ° F).Amandla empembelelo ye-PVDF angaphezulu kabini kune-PVC.Iivalvu zomelele ngokugqithisileyo phantsi kokuxhatshazwa koomatshini nakwi -40°F.Bakwanikezela ngeyona ndlela iphezulu yokuxhathisa i-abrasion ye-thermoplastic valves.PVDF inokumelana nekhemikhali egqwesileyo ngokuchasene ne-halogens efana ne-chlorine kunye ne-bromine, i-acids ezomeleleyo ezifana ne-hydrofluoric kunye ne-nitric acids, izinyibilikisi eziphilayo kunye namafutha.I-PVDF ayixhathisi kwiziseko ezishushu.I-PVDF yethu ihambelana ne-USDA Title 21, iimfuno ze-P121.2593 zokunxibelelana nokutya.Ukungena kwerhasi kwiPVDF kuphantsi kakhulu.Isithintelo segesi se-PVDF esinelungelo elilodwa lomenzi sifumaneka kwi-Type 14 kunye ne-DV Series Diaphragm Valves.Ixhasa i-polymer® diaphragm kwaye ibonakalise ukunyusa ubomi be-diaphragm valves kwi-chlorine kunye neenkonzo ze-asidi ezomeleleyo.

ipolymer® PTFE (Polytetrafluoroethylene)

I-PTFE phantse ayinyibiliki ngokupheleleyo kwaye inert ngokwekhemikhali.Inokumelana nobushushu obuphezulu.izihlalo zebhola ze-polymer® PTFE, ngenxa yokuthambisa kwendalo, azifuni kuthambisa.iidiaphragm ze-polymer® PTFE kunye neegasket zeflange zisetyenziswa kwezona zicelo ziqatha zokumelana neekhemikhali.