Dwyer蝶阀WE20-GDA08-WE_WE20-GTD05-WE-A_WE20-CDA04-WE
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; SR03 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
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。