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      北京朗潤(rùn)達(dá)科貿(mào)有限公司
                                
                
                
      

							
      
                        			
      
		
      
	
      
	
	
      
		
      
            
      
                當(dāng)前位置：北京朗潤(rùn)達(dá)科貿(mào)有限公司>>>>Dwyer  蝶閥  WE20系列
            
      
			
      
				
      
					
      Dwyer  蝶閥  WE20系列
      
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      商鋪產(chǎn)品：738條
      
						
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      WE20系列蝶閥有凸耳式或晶圓式閥體，配置聚四氟乙烯或三元乙丙橡膠襯墊。WE20系列蝶閥最關(guān)鍵的方面是插裝閥座設(shè)計(jì)，這減輕了與普通“鴿尾設(shè)計(jì)"閥座相關(guān)的安裝問(wèn)題。由于閥座動(dòng)力學(xué)不依賴(lài)于兩個(gè)法蘭之間的耦合，因此閥門(mén)扭矩更低，也更一致。閥瓣和閥體的精密加工使得插裝結(jié)構(gòu)能夠保持更緊密的閥瓣與閥座的公差，每次閥門(mén)循環(huán)時(shí)都提供的低扭矩密封。閥座到閥瓣密封獨(dú)立于法蘭支撐，能夠進(jìn)行全額定終端應(yīng)用。執(zhí)行機(jī)構(gòu)直......
      
				
      
				
      
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      規(guī)格規(guī)格

      SPECIFICATIONS VALVE
      Service    Compatible liquids, gases, and steam.
      Body    2-way, wafer or lug butterfly.
      Line Sizes    2 to 12".
      End Connections    Lug and wafer pattern designed for flanges that are ANSI Class 125 (B16.1) and ANSI Class 150 (B16.5) dimension.
      壓力范圍    225 psi (15.5 bar).
      Wetted Materials    Body Material: Ductile iron; Disc: 316 SS; Seat: EPDM or PTFE; O-ring: EPDM; Stem: 410 SS.
      Temperature Limits    Disc: EPDM: -50 to 250°F (-46 to 121°C); 
                                            PTFE: 0 to 300°F (-18 to 149°C).
      Bearings    Nylatron.
      Operator    2 to 6" 10-position locking hａnd lever; 8 to 12": manual gear.
       
      ACTUATORS
      Pneumatic “DA" and “SR" Series Type    DA series is double acting and SR series is spring return (rack and pinion).
      Normal Supply Pressure    DA: 40 to 115 psi (2.7 to 7.9 bar); SR: 70 to 115 psi (4.8 to 7.9 bar).
      Maximum Supply Pressure    120 psi (8.6 bar).
      Air Connections    DA03 thru DA11: 1/4" FNPT; SA03 thru SR11: 1/4" FNPT.
      Housing Material    Anodized aluminum body and epoxy coated aluminum end caps.
      Temperature Limits    -40 to 176°F (-40 to 80°C).
      Accessory Mounting    NAMUR standard.
       
      Electric "TD" and "MD" Series
      Power Requirements    110 VAC, 220 VAC or 24 VAC.
      Power Consumption    See instruction manual.
      Cycle Time (per 90°)    TD01 and MD01: 4 s; TD02 and MD02: 20 s; TD03 and MD03: 30 s; TD04 and MD04: 30 s; TD05 and MD05: 30 s; TD06 and MD06: 45 s; TD07 and MD07: 30 s.
      Duty Rating    85%.
      Enclosure Rating    NEMA 4X (IP67).
      Housing Material    Powder coated aluminum.
      Temperature Limits    -22 to 140°F (-30 to 60°C).
      Electrical Connection    1/2" female NPT.
      Modulating Input    4 to 20 mA.
      Standard Features    Manual override, position indicator, and TD models come with two limit switches.
       
      Electric "TH" and "MH" Series
      Power Requirements    110 VAC, 220 VAC, 24 VAC or 24 VDC.
      Power Consumption    See instruction manual.
      Cycle Time (per 90°)    See instruction manual.
      Duty Rating    See instruction manual.
      Enclosure Rating    NEMA 7, designed to meet hazardous locations: Class I, Group C & D; Class II, Group E, F & G; Division I & II.
      Housing Material    Powder Coated Aluminum.
      溫度范圍    -22 to 140°F (-30 to 60°C).
      Electrical Connection    1/2" female NPT.
      Modulating Input    4 到 20 mA.
      Standard Features    Position indicator and two limit switches.
       
                                                                                   
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      選項(xiàng)配件
                                                  

                                          
			        
      
			    
      
                                                				
      
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