价格:未填
供应:99999
发货:3天内
西门子[SIEMENS]热力阀执行器STA21、STA21/50、STA71、STA71/50 热力阀执行器STA21、STA21/50、STA71、STA71/50 应用于散热器阀门，小阀门和区域阀STA21...AC230V工作电压，2位控制信号STA71...AC/DC24V工作电压，2位控制信号或PDM（脉宽调制）驱动力105N直接与螺母安装（无需工具）1.2米或5米连接电缆两线连接位置指示坚固耐用的结构，运行安静可选防篡改件，以防止拆除 Application： 2-positioncontrolofheatingsystems chilledceilingsandterminalunits ForSiemensradiatorvalvetypesVDN ,VEN andVUN ForSiemensMiniCombiValves(MCV)VPD andVPE ForSiemenssmallvalvesVD1 CLC ForSiemenszonevalvesV I46 andV S46 Forvalves,radiatorvalvesanddistributorsfromothermanufacturers Function： Whenthecontrolsignalisappliedtotheactuator,thetemperatureoftheheatingelementrises,whichcausesthesolidexpansionmediumtoexpand.Thisexpansionisconvertedintoalinearmovement,causingtheactuatorstemtoretract.Thevalveisopenedbytheforceofthespring.Whentheactuatorisde-energized,theactuatorstemisextendedandthevalvecloses.TheSTA21 andSTA71 thermalactuatorshavenorotatingparts.Consequently,theyoperatequietlyandarenotsubjecttowear. Warranty： ThetechnicaldatagivenfortheseapplicationsisvalidonlyforvalvesusedinconjunctionwiththeSiemensandthird-partyactuatorslistedunder Equipmentcombinations .IftheSTA actuatorsareusedwithothervalves,thentheuserisresponsibleforensuringcorrectfunctioningandallclaimsunderSiemensSwitzerlandLtd/HVACProductswarrantyareinvalidated. 注：本产品所标价格仅为参考，实际价格、详细技术参数及安装方法请来电咨询。 北京乾圳工程技术有限公司联系人：陈述手 机：13240011177电 话：010-83706629传 真：010-83706435网 址：http://www.bjqzgc.com/地 址：北京市丰台区四合庄288号波峰商务楼403室邮 编：100070