Dwyer 3BV3系列不锈钢三通自动球阀
Specifications
Service: Compatible liquids, gases or steam. Body: 3-way. Line Size: 1/2" to 2". End Connections: Female NPT. Pressure Limit: 1000 psi (69 bar) WOG; 150 psi (10.3 bar) SWP. Wetted Materials: Body, End Cap, Stem, Ball: 316 SS; Seat, Stem Seal: RTFE. Temperature Limit: -40 to 450°F (-40 to 232°C). Steam max.: 366°F (186°C). Other Materials: Body Seal, Body O-ring, Stem O-ring: Viton®. Dwyer 3BV3系列不锈钢三通自动球阀
ACTUATORS: Electric: Power Requirements: 120 VAC, 50/60 Hz, single phase. Optional 220 VAC, 24 VAC, 12 VDC, and 24 VDC. Power Consumption (Locked Rotor Current): Two position: 1/2": .55A; 3/4" to 1-1/2": .75A; 2": 1.1A. Modulating: 1/2" to 1-1/2": .75A; 2": 1.1A. Cycle Time (per 90°): Two Position: 1/2": 2.5 sec.; 3/4" to 1-1/4": 5 sec.; 1-1/2": 10 sec.; 2": 15 sec. Modulating: 1/2" to 1-1/4": 5 sec.; 1-1/2": 10 sec.; 2": 15 sec. Duty Cycle: Two Position: 1/2": 75%; 3/4" to 2": 25%. Modulating: 75%. Enclosure Rating: NEMA 4. Optional NEMA 7. Housing Material: Aluminum with thermal bonding polyester powder finish. Temperature Limit: 0 to 150°F (-18 to 65°C). Conduit Connection: 1/2" female NPT. Modulating Input: 4 to 20 mA. Standard Features: Manual override and visual position indicator except modulating units.
Pneumatic "DA" and "SR" Series: Type: DA Series is double acting and SR Series is spring return (rack and pinion). Normal Supply Pressure: 80 psi (5.5 bar). Maximum Supply Pressure: 120 psig (8.0 bar). Air Connections: DA2 to 4 and SR2 to 5: 1/8" female NPT; all others: 1/4" female NPT. Air Consumption (per stroke): DA1: 2.32 cu. in.; DA2, SR2: 9.34 cu. in.; DA3, SR3: 17.21 cu. in.; DA4, SR4: 20.5 cu. in.; SR5: 39.54 cu. in.; SR6: 54.37 cu. in.; SR7: 84.43 cu. in. Cycle Time (per 90°): DA1: .03 sec.; DA2: .04 sec.; DA3: .08 sec.; DA4: .12 sec.; SR2: .09 sec.; SR3: .14 sec.; SR4: .22 sec., SR5: .33 sec.; SR6: .46 sec.; SR7: .78 sec. Housing Material: Anodized aluminum body and epoxy coated aluminum end caps. Temperature Limit: -4 to 180°F (-20 to 82°C). Accessory Mounting: NAMUR standard. Standard Features: Visual position indicator. Dwyer 3BV3系列不锈钢三通自动球阀
