Dwyer蝶阀WE20-IDA11-WE_WE20-ITD07-WE-A_WE20-ADA03-WE
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
Temperature Limits: -22 to 140°F (-30 to 60°C).
Electrical Connection: 1/2? female NPT.
Modulating Input: 4 to 20 mA.
Standard Features: Position indicator and two limit switches.
介质:兼容液体、气体和蒸汽。
阀体:双向、对夹式或凸耳式蝶阀。
线路尺寸:2至12”
端部连接:为尺寸为ANSI 125级(B16.1)和ANSI 150级(B16.5)的法兰设计的凸耳和对夹式。
压力限制:225磅/平方英寸(15.5巴)。
润湿材料:阀体材料:球墨铸铁;阀瓣:316不锈钢;阀座:三元乙丙橡胶或聚四氟乙烯;O形环:三元乙丙橡胶;阀杆:410不锈钢。
温度限制:圆盘:三元乙丙橡胶:-50至250°F(-46至121°C);
聚四氟乙烯:0至300°F(-18至149°C)。
轴承:Nylatron。
操作员:2至6 10位锁定手柄;8至12:手动档。
执行机构
气动“DA”和“SR”系列
类型:DA系列为双作用,SR系列为弹簧复位(齿条和小齿轮)