Dwyer蝶阀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.