Kayayyakin Gina (Thermoplastics)

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

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Polyvinyl chloride (PVC)

Mafi girman tattalin arziki da mafi girman zaɓi na bawul ɗin Chemline an ƙera su daga PVC.Yana ba da kyawawan kaddarorin juriya na inji da sinadarai a farashi mai sauƙi.Yanayin zafin aiki na bawul ɗin PVC shine 0 zuwa 60 ° C (30 zuwa 140 ° F).PVC da ake amfani da su don bawul ɗin Chemline ana gano su ta lambar rarraba tantanin halitta 11564-A kamar yadda ASTM Standard D 1784. Ƙaƙwalwar “A” tana nufin mafi girman ƙimar juriya na sinadarai.Yawancin sauran bawuloli na PVC da bututu da kayan aiki suna da ƙimar juriya na sinadarai na “B” kawai. Filin PVC “A” na musamman da ake amfani da shi a cikin bawul ɗin Chemline yana tsayayya da harin yawancin acid, alkalai masu ƙarfi, gishiri da sauran sinadarai masu yawa.High sinadaran juriya na wannan abu damar da aikace-aikace a kan m ayyuka kamar 98% H2 SO4 , bushe chlorine da low matsa lamba rigar chlorine gas.Ana kaiwa PVC hari ta hanyar chlorinated hydrocarbons, ketones, esters da wasu mahadi masu kamshi.Ana iya amfani da shi akan maganin da ke dauke da har zuwa 1000 ppm solvents.Chemline PVC bawul ba su da guba.Sun hadu da ma'auni na CSA B137.0 don guba. Suna da tsayayya ga lalacewar hasken rana da yanayin yanayi, don haka zanen ba lallai ba ne.

CPVC (Chlorinated Polyvinyl Chloride)

CPVC yayi kama da PVC a cikin kayan aikin injiniya da juriya na sinadarai.Ya dace da aikace-aikace daga 0 zuwa 95 ° C (30 zuwa 200 ° F) .Tsarin CPVC na musamman da aka yi amfani da shi don Chemline valves an rarraba shi a matsayin 23567-A kamar yadda ASTM D 1784. Ƙaƙwalwar "A" yana nuna yarda da mafi girman sinadarai. juriya rating.Filin ba shi da guba, wanda ya dace da daidaitattun CSA mai guba B137.0. CPVC bawuloli sun tabbatar da zama kyakkyawan zaɓi don aikace-aikace a yanayin zafi da yawa don PVC ko lokacin da ake buƙatar ƙarin gefen aminci.

PP (Polypropylene)

PP yana da nauyi mai sauƙi kuma mai girma a cikin juriya na sinadarai.Valves sun dace da sabis daga -20 zuwa 90°C (-5° zuwa 195°F).PP ba ya shafar alkalais, salts, kwayoyin kaushi da yawancin acid, musamman hydrochloric da phosphoric acid.Ba shi da dacewa a kan acid mai karfi, chlorinated hydrocarbons, kayan ƙanshi da kuma yawan adadin chlorine kyauta.PP yana da matukar tasiri don haka ya shahara don aikace-aikacen tsabta mai tsabta kamar ruwa mai tsabta, da dai sauransu. Kayan yana zuwa kullum opaqued ta ƙara da launin toka-m pigment don hanawa. ultraviolet haske shiga.Abubuwan translucent na halitta ba tare da pigment ba zai ragu idan an fallasa su zuwa hasken UV (hasken rana).Chemline yana ba da bututun PP, kayan aiki da bawuloli a cikin PP masu launi da mara launi, duka FDA ta amince da su don saduwa da abinci.

PVDF (Polyvinylidene Fluoride)

PVDF ya fi sauran bawul thermoplastics a cikin juriya na sinadarai da juriyar abrasion.Yana da ƙarfi na ban mamaki akan mafi girman kewayon zafin aiki.Yanayin zafin aiki na bawul ɗin PVDF shine -40 zuwa 120 ° C (-40 zuwa 250 ° F) Ƙarfin tasirin PVDF ya ninka na PVC.Bawuloli suna da matuƙar ɗorewa a ƙarƙashin cin zarafi na inji ko da a -40°F.Har ila yau, suna ba da mafi girman juriya na abrasion na thermoplastic valves.PVDF yana da kyakkyawan juriya na sinadarai daga halogens irin su chlorine da bromine, acid mai karfi irin su hydrofluoric da acid nitric, kwayoyin kaushi da mai.PVDF baya juriya ga tushen zafi. Hakanan ba mai guba bane kuma baya ba da wari ko ɗanɗano cikin ruwa.Mu PVDF ya dace da USDA Title 21, P121.2593 bukatun don saduwa da abinci.Karɓar iskar gas na PVDF yayi ƙasa sosai.Ana samun shingen shingen iskar gas na PVDF mai haƙƙin mallaka akan Nau'in 14 da DV Series Diaphragm Valves.Yana da goyan baya ga diaphragm na polymer® kuma ya tabbatar da haɓaka rayuwar bawul ɗin diaphragm akan chlorine da sabis na acid mai ƙarfi.

polymer® PTFE (Polytetrafluoroethylene)

PTFE kusan ba shi da narkewa kuma ba shi da sinadarai.Yana da tsayin daka na zafin jiki.Kujerun ball na polymer® PTFE, saboda lubricity na halitta, babu buƙatar mai.polymer® PTFE diaphragms da flange gaskets ana amfani da su a cikin mafi tsanani sinadaran juriya aikace-aikace.