Izinto zokwakha (Thermoplastics)

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

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I-PVC (i-Polyvinyl Chloride)

Ukukhetha ukonga kakhulu nokukhulu kakhulu kwamavalvu e-Chemline abunjwe kusuka ku-PVC.Inikeza izakhiwo ezinhle kakhulu zokumelana nemishini namakhemikhali ngezindleko eziphansi.Izinga lokushisa elisebenzayo lamavalvu e-PVC lingu-0 kuya ku-60°C (30 kuya ku-140°F).I-PVC esetshenziselwa amavalvu e-Chemline ikhonjwa ngenombolo yokuhlukaniswa kwamaseli 11564-A ngokwe-ASTM Standard D 1784. Isijobelelo esithi “A” sibhekisela esilinganisweni esiphezulu sokumelana namakhemikhali.Iningi lamanye ama-valve e-PVC kanye namapayipi nokufakwa anesilinganiso sokumelana namakhemikhali "B" kuphela.Inhlanganisela ekhethekile ye-PVC "A" esetshenziswa kuma-valve e-Chemline imelana nokuhlaselwa kwama-asidi amaningi, ama-alkalais aqinile, usawoti kanye namanye amakhemikhali amaningi.Ukuphikiswa kwamakhemikhali okuphezulu kwalokhu kwaziswa kuvumela ukusetshenziswa kwayo ezinsizeni ezinolaka ezifana ne-98% H2 SO4, i-chlorine eyomile kanye negesi ye-chlorine emanzi enomfutho ophansi.I-PVC ihlaselwa ama-hydrocarbon ane-chlorine, ama-ketone, ama-ester nezinye izinhlanganisela ezinuka kamnandi.Ingasetshenziswa ezixazululweni eziqukethe izincibilikisi ezingafika ku-1000 ppm. Amavalvu e-Chemline PVC awawona ubuthi.Zihlangabezana ne-CSA ejwayelekile ye-B137.0 yobuthi. Azikwazi ukumelana nemithelela elimazayo yokukhanya kwelanga nesimo sezulu, ngakho ukudweba akudingekile.

I-CPVC (i-Chlorinated Polyvinyl Chloride)

I-CPVC ifana kakhulu ne-PVC ezindaweni zemishini kanye nokumelana namakhemikhali.Ilungele ukusetshenziswa kusuka ku-0 kuye ku-95 ° C (30 kuya ku-200 ° F).Inhlanganisela ekhethekile ye-CPVC esetshenziselwa amavalvu e-Chemline ihlukaniswa njenge-23567-A njengokusho kwe-ASTM D 1784. Isijobelelo "A" sichaza ukuhambisana nekhemikhali ephakeme kakhulu. ukukala ukumelana.Inhlanganisela ayinabo ubuthi, ihambisana nobuthi obujwayelekile be-CSA amavalvu e-B137.0.CPVC afakazele ukuthi iyisinqumo esihle kakhulu sokufaka izicelo emazingeni okushisa aphezulu kakhulu ku-PVC noma lapho kudingeka umkhawulo ongeziwe wokuphepha.

I-PP (i-Polypropylene)

I-PP isisindo esincane futhi iphezulu ekuphikisweni kwamakhemikhali.Amavalvu alungele isevisi ukusuka ku -20 kuya ku-90°C (-5° ukuya ku-195°F).I-PP ayithinteki i-alkalais, usawoti, izinyibilikisi eziphilayo kanye nama-asidi amaningi, ikakhulukazi i-hydrochloric ne-phosphoric acid.Ayifaneleki kuma-acids aqinile, ama-hydrocarbons ayi-chlorine, izinhlanganisela ezinuka kamnandi kanye nokugxila okuphezulu kwe-chlorine yamahhala.I-PP ayisebenzi kakhulu ngaleyo ndlela idume ngokusetshenziswa kokuhlanzeka okuphezulu okufana namanzi enziwe nge-deionized, njll. Izinto zifika ngokujwayelekile zi-opaque ngokungezwa kwebala elimpunga-beige ukuvimbela. ukukhanya kwe-ultraviolet.Izinto zemvelo ezikhanyayo ezingenaso umbala zizowohloka uma zivezwe ekukhanyeni kwe-UV (ukukhanya kwelanga).I-Chemline inikeza ipayipi le-PP, okokufakwayo namavalvu ku-PP enombala nengenambala, kokubili kuvunywe yi-FDA ukuze kuthintene nokudla.

I-PVDF (i-Polyvinylidene Fluoride)

I-PVDF iphakeme kunamanye ama-valve thermoplastics ekuphikisweni kwamakhemikhali nokumelana nokuhuzuka.Inamandla amangalisayo ngaphezu kwebanga lokushisa elikhulukazi elisebenzayo.Izinga lokushisa elisebenzayo lamavalvu e-PVDF lingu -40 kuya ku-120°C (-40 kuya ku-250°F).Amandla omthelela we-PVDF aphindwe kabili kunawe-PVC.Amavalvu aqinile kakhulu ngaphansi kokuhlukunyezwa kwemishini ngisho naku -40°F.Baphinde banikeze ukumelana okuphezulu kakhulu kokuhunyazwa kwamavalvu e-thermoplastic.I-PVDF inokumelana okuhle kakhulu kwamakhemikhali ngokumelene nama-halogen afana ne-chlorine ne-bromine, ama-acids aqinile njenge-hydrofluoric kanye ne-nitric acid, izinyibilikisi eziphilayo kanye namafutha.I-PVDF ayimelani nezisekelo ezishisayo. Ayinabuthi futhi ayinikezi iphunga noma ukunambitheka oketshezini.I-PVDF yethu ihambisana nezimfuneko ze-USDA Title 21, P121.2593 zokuxhumana nokudla.Ukungena kwegesi kwe-PVDF kuphansi kakhulu.Isivimbeli segesi se-PVDF esinelungelo lobunikazi sitholakala ku-Type 14 kanye ne-DV Series Diaphragm Valves.Isekela i-polymer® diaphragm futhi ifakazele ukwandisa ukuphila kwamavalvu e-diaphragm ku-chlorine nezinkonzo ze-asidi eqinile.

i-polymer® PTFE (Polytetrafluoroethylene)

I-PTFE cishe ayincibiliki ngokuphelele futhi inetizi ngamakhemikhali.Inokumelana nezinga lokushisa eliphezulu.izihlalo zebhola ze-polymer® PTFE, ngenxa yokuthambisa kwemvelo, azidingi ukugcotshwa.I-polymer® PTFE diaphragms kanye nama-flange gaskets asetshenziswa ezinhlelweni ezinzima kakhulu zokumelana namakhemikhali.