Dwyer Instruments WE01 系列手动球阀 Dwyer Instruments WE01 系列 2 件套不锈钢球阀提供极佳的流率和最小压降。 阀门具有灭弧保护柄，用于增加安全性，以及强化 PTFE 座和长寿命密封。 WE01 系列手动球阀兼容液体和气体，具有 NPT 内螺纹。 可按应用要求进行配置 通用球体可减少工作扭矩 全端口设计可减少阀门的压降 球阀，2 件式 - 不锈钢
The Series WE02 incorporates a full port 3-piece SS ball valve for great flow rates with minimal pressure drop. The valve features a blowout proof stem for added safety, reinforced PTFE seats and seals for longer life, and a 316 SS ASTM CF8M ball for better performance. Actuators are direct mounted creating a compact assembly for tight spaces. Limit switches are able to be mounted directly to the valves allowing for remote position indication.
The Series WE02 can be configured with either an electric or pneumatic actuator. Electric actuators are available in weatherproof or explosion-proof, a variety of supply voltages and two-position or modulating control. Two-position actuators use the supply voltage to drive the valve open or closed, while the modulating actuator accepts a 4 to 20 mA input for valve positioning. Actuators feature thermal overload protection and permanently lubricated gear train.
The pneumatic double acting actuator uses an air supply to drive the valve open and closed. The actuator has two supply ports, with one driving the valve open and the other driving the valve closed. Spring return pneumatic actuators use the air supply to open the valve, and internally loaded springs return the valve to the closed position. Also available is the SN solenoid valve to electrically switch the air supply pressure between the air supply ports for opening and closing the valve. Actuators are constructed of anodized and epoxy coated aluminum for years of corrosion free service.