Qalabka Dhismaha (Thermoplastics)

Qalabka Dhismaha (Thermoplastics): Polymer® PTFE (Polytetrafluoroethylene), PVDF (Polyvinylidene Fluoride), PP (Polypropylene), CPVC (Chlorinated Polyvinyl Chloride), PVC (Polyvinyl Chloride)

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PVC (Polyvinyl chloride)

Xulashada ugu dhaqaalaha badan iyo tan ugu weyn ee tuubooyinka Chemline waxay ka samaysan yihiin PVC.Waxay bixisaa sifooyin farsamo iyo kiimiko oo aad u wanaagsan qiimo jaban.Heerkulka shaqada ee tuubooyinka PVC waa 0 ilaa 60 ° C (30 ilaa 140 ° F).PVC ee loo isticmaalo valves Chemline waxaa lagu gartaa lambarka kala soocida unugga 11564-A sida ku cad ASTM Standard D 1784. Dabagalka "A" waxaa loola jeedaa qiimeynta iska caabbinta kiimikada ugu sareysa.Inta badan valvesyada kale ee PVC iyo sidoo kale tuubooyinka iyo qalabyada waxay leeyihiin kaliya "B" qiimeynta caabbinta kiimikada.Iska caabbinta kiimikada sare ee maaddadan ayaa u oggolaanaysa codsigeeda adeegyada gardarrada ah sida 98% H2 SO4, koloriin qallalan iyo gaasta koloriinta qoyan ee cadaadiska hooseeya.PVC-ga waxaa lagu weeraray hydrocarbons koloriin leh, ketones, esters iyo qaar ka mid ah isku-dhisyada udgoonka.Waxaa loo isticmaali karaa xalalka ka kooban ilaa 1000 ppm dareerayaasha.Chemline PVC valves waa kuwo aan sun ahayn.Waxay la kulmaan heerka CSA ee B137.0 ee sunta. Waxay u adkaystaan ​​waxyeellada iftiinka qorraxda iyo cimilada, sidaas darteed rinjiyeynta looma baahna.

CPVC (Chlorinated Polyvinyl Chloride)

CPVC waxay aad ugu egtahay PVC marka loo eego sifooyinka farsamada iyo caabbinta kiimikada.Waxay ku habboon tahay codsiyada laga bilaabo 0 ilaa 95 ° C (30 ilaa 200 ° F) . Xarunta gaarka ah ee CPVC ee loo isticmaalo valves Chemline waxaa loo kala saaraa 23567-A sida ku cad ASTM D 1784. Dabagalka "A" wuxuu muujinayaa u hoggaansanaanta kiimikada ugu sareysa. qiimeynta iska caabinta.Xaruntu waa mid aan sun ahayn, oo u hoggaansamaya heerka sunta CSA ee B137.0. CPVC valves waxay caddeeyeen inay yihiin doorasho aad u fiican oo loogu talagalay codsiyada heerkulka aad u sarreeya ee PVC ama marka loo baahan yahay xad dheeraad ah oo badbaado ah.

PP (polypropylene)

PP waa miisaan fudud oo sarreeya caabbinta kiimikada.Valves waxay ku haboon yihiin adeega laga bilaabo -20 ilaa 90°C (-5° ilaa 195°F).PP ma saameeyaan alkalays, cusbada, dareerayaasha organic iyo inta badan asiidhyada, gaar ahaan hydrochloric iyo fosfooraska acid.Waa mid aan ku habboonayn asiidhyada xooggan, hydrocarbons chlorinated, xeryahooda caraf udgoon iyo uruurinta sare ee chlorine lacag la'aan ah.PP waa mid aad u firfircoon sidaas awgeed caan ku ah codsiyada nadiifka ah sida biyaha deionized, iwm dhexgalka iftiinka ultraviolet.Walxaha tarjumaadda dabiiciga ah ee aan midab lahayn ayaa hoos u dhacaya haddii ay la kulmaan iftiinka UV (iftiinka qorraxda).Chemline waxa ay bixisa tubbada PP, qalabyada iyo valvesyada PP ee midabaysan iyo kuwa aan midab lahayn, labaduba waxa ay FDA u ogolaatay in lala xidhiidho cuntada.

PVDF (Polyvinylidene fluoride)

PVDF waxay ka sarraysaa heerkulbeegyada kale ee valve ee iska caabinta kiimikada iyo caabbinta naaxinta.Waxay leedahay awood cajiib ah oo ka sarreysa heerka ugu weyn ee heerkulka shaqada.Heerkulka shaqada ee tuubooyinka PVDF waa -40 ilaa 120 ° C (-40 ilaa 250 ° F) .. Awoodda saamaynta PVDF waxay ka badan tahay laba jeer tan PVC.Daboolayaashu aad bay ugu adkeysanayaan xadgudubka farsamada xitaa at -40°F.Waxa kale oo ay bixiyaan iska caabbinta abrasion-ka ugu sarreeya ee alwaaxyada thermoplastic.PVDF waxay leedahay iska caabin kiimiko oo heer sare ah oo ka dhan ah halogens sida chlorine iyo bromine, acids xoog leh sida hydrofluoric iyo nitric acids, dareerayaasha organic iyo saliidaha.PVDF maaha mid u adkaysata saldhigyada kululPVDFyadu waxay waafaqsan tahay USDA Ciwaanka 21, P121.2593 shuruudaha xidhiidhka cuntada.Dhererka gaaska ee PVDF aad buu u hooseeyaa.Caqabad gaaska PVDF ee rukhsadda leh ayaa laga heli karaa Nooca 14 iyo DV Series Diaphragm Valves.Waxa ay taageerto diaphragm-ka polymer® waxana ay caddaysay in ay kordhiso nolosha valves diaphragm ee koloriin iyo adeegyada aashitada xooggan.

polymer® PTFE (Polytetrafluoroethylene)

PTFE gabi ahaanba waa mid aan la milmi karin oo kimiko ahaan aan shaqaynayn.Waxay leedahay iska caabin heerkul sare ah.polymer® PTFE kuraasta kubbadda, sababtoo ah saliidda dabiiciga ah, uma baahna saliid.polymer® PTFE diaphragms iyo gaasaska flange ayaa loo adeegsadaa codsiyada iska caabbinta kiimikada ee ugu daran.