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Dwyer蝶閥WE20-EDA06-WE_WE20-ETD04-WE-A_WE20-DTD03-WE-A

Dwyer蝶閥WE20-EDA06-WE_WE20-ETD04-WE-A_WE20-DTD03-WE-A

介質：兼容液體、氣體和蒸汽。

閥體：雙向、對夾式或凸耳式蝶閥。

線路尺寸：2至12”

端部連接：為尺寸為ANSI 125級（B16.1）和ANSI 150級（B16.5）的法蘭設計的凸耳和對夾式。

壓力限制：225磅/平方英寸（15.5巴）。

潤濕材料：閥體材料：球墨鑄鐵；閥瓣：316不銹鋼；閥座：三元乙丙橡膠或聚四氟乙烯；O形環：三元乙丙橡膠；閥桿：410不銹鋼。

溫度限制：圓盤：三元乙丙橡膠：-50至250°F（-46至121°C）；

聚四氟乙烯：0至300°F（-18至149°C）。

軸承：Nylatron。

Dwyer蝶閥WE20-EDA06-WE_WE20-ETD04-WE-A_WE20-DTD03-WE-A

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.

Pressure Limits: 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; 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.