21型氣動換向閥（L型） L-type Sanitary Reversing Valve
應用:該換向座閥是一種衛生級單座氣動操作閥門，在食品加工工業，飲料生產制藥和精細化工工業中有著廣泛的應用。
操作原理該座閥由單作用或雙作用的氣動執行器自動操作。壓縮空氣推動軸來定位閥門開或關的位置。
單作用執行器的氣缸180度的旋轉，實現了閥門的常開和常閉型。
設計和特點閥體采用國內鍛壓設計
尺寸從DN25/1“到DN100/4" 標準為常閉型閥門(NC)
通過簡單的改變氣動執行器的活塞，閥門就可以轉變成常開型(NO) 根據3A 標準衛生設計 360度可調節外部結構 開啟的窗口用于觀看檢查軸密封情況通過松開卡箍，就可以簡單的拆卸內部部件 焊接式連接口(毫米或英寸)
材質 和物料接觸部分: AISI 316L、AISI 304 其他部分為不銹鋼: AISI 304
密封圈:EPDM 根據FDA 177.2600 內表面處理: Ra ≤0.8μm 外表面處理: 噴砂、拋光
選項 墊圈:FPM(氟橡膠),符合FDA 177.2600
連接:DIN,卡箍，SMS,RJT,FIL- IDF...
雙作用氣動執行器 “雙阻止"執行器 外置傳感器 蒸汽消毒(如果軸需要殺菌)
C-TOP控制單元 表面處理: Ra ≤0.5μm 手動操作
技術規范
規格:DN25-DN100 DN1"-DN4"
工作溫度:-10℃到+ 120℃(EPDM)
14°F到248°F
+140 (SIP 30min)
284°F
工作壓力: 10 bar 145 PSI
壓縮空氣壓力: 6-8 bar 87-116 PSI
氣源連接: G1/8" (BSP)
L-type Sanitary Reversing Valve
Applications The divert seat, valve is a kind of hygienicsingle-seat valve pneumatically ,which is applied to a wide range ofapplication in the food-processing industry, beverage production.pharmaceutical and fine chemicals industries.
Operating principle Seatvalves are operated automatically by a single-acting or a
double-actingpneumatic actuator. By supplying compressed air，the shaft is moved to place the valve in the "open" or”closed”position.
The180°rotation of the pneumatic cylinder of single-actingactuators allows to have a normally open or normally closed valve.
Design and features Compact androbust design. 3A certified valve.
Availablesizes: from DN 25/1" to DN 100/4".
Normally closed valve (NC) in the standard version.
Thevalve can be changed to normally open (NO) by simply reversing the position ofthe pneumatic actuator. Hygienicdesign according to 3A standards. 360°adjustable body. Openlantern allows visual inspection of shaft sealing. Easy assembly/disassembly of internal parts byloosening a clamp fastener.
Standardweld connections (mm or inches).
Materials Parts in contact With the product：AlSl 316L、AlSl 304
Otherparts in sainless steel: AlSl 304 Gasket:EPDM according to FDA 177.2600
lnternalsurface finish: Ra ≤0.8μm External surface finish: bright polish
Technical specifications Availablesizes:DN25-DN100 DN1“-DN4”
Workingtemperature:-10℃to+120℃（EPDM) 14°F to 248°F
+140℃(SlP,max.30 min) 284°F Max.working pressure: 10bar 145 PSl
Compressedair pressure:6-8bar 87-116PSl Air connecitons :G1/8” (BSP)
OptionsGaskets: FPM (Viton (R)) in compliance with FDA 177.2600
Connections:DIN, Clamp, SMS, RJT, FlL-lDF, etc. Double-acting pneumatic actuator.
"Twin-Stop"actuator. External position sensors. Steam barrier (if shaft sterilisation isrequired). Jacketed body. C-TOP control unit. Surface finish: Ra≤0.5μm Manual actuation. Materialａnd roughness certificates.
