双层百叶风口|双层风咀|单层百叶风口|双层风口双层百叶风口，广泛应用于空调系统中作送风口，根据使用要求，风口后面可配制铝制风量调节阀（人字闸），双层百叶风口具有两层相互垂直页片调节水平和垂直页片的角度，调整气流扩散面，以改变射程，风口的外框宽度有宽边框和窄边框两种，可用于特殊要求的通风系统中。FK-DBseriesgrillesSerialshutterinletportsareusuallyinstalledonthepipeorthesidewalltouseassideinletport.TherearetwolayersofadjustableshiftingvanesinthedoublelayeredshutterinletportTheshortoneisusedtoadjusttheangleofflareoftheblowingairflowandtoshiftthedirectionoftheairflowwhileadjustingthelongonecanmaketheblowingairflowaffixtheceilingjoistordescendatanangle(whenblowingwarmwind).Theoutsidevaneofthedoublelayeredshutterinletportorthevaneofthesingleshutterinletportcanbeparalleleithertothelongedgeortotheshortedge,whichisbeingtoadjustedtotheneedsofcustomers.Characteristic:Doublegrille:1,Theuseoftheadjustabledouble-layeredvanescanbringdifferentblowingdistancesanddifferentanglesofflare.2,Useasinletport3,BemadeofAluminumoriron4,Beusedtogetherwithadjustingvalve5,WithasealedspongygasketSinglegrille:1,Theuseoftheadjustablesingle-layeredvanescanbringdifferentblowingdistancesanddifferentanglesofflare.2,Useasinletportoroutletport3,BemadeofAluminumoriron4,Asablowinginletport,itisusedwithadjustingvalve.5,Asablowingoutletport,itcanbemadeastructureeasytoopenandbeusedwithagauzefilter.6,Withasealedspongygasket)