| 品牌：美国Dwyer | 型号：WE20 | 结构形式：垂直板式 |
| 3C阀门类别：工业 | 订货号：- | 加工定制：否 |
| 货号：- | 材质：不锈钢 | 连接形式：对夹 |
| 适用介质：氨气 | 压力环境：常压 | 工作温度：常温 |
| 标准：美标 | 流动方向：单向 | 驱动方式：电磁 |
| 零部件及配件：阀体 | 用途：安全 | 类型(通道位置)：二通式 |
| 口径：- | 公称通径：- | 安装尺寸：- |
| 规格：- | 是否跨境货源：否 |
WE20系列蝶阀现货 美国Dwyer蝶阀库存，WE20系列蝶阀现货 美国Dwyer蝶阀总代理
Dwyer 蝶阀 WE20系列
The Series WE20 is offered in lug or wafer body styles and is equipped with a PTFE or EPDM liner. The most critical aspect of the Series WE20 Butterfly Valves is the cartridge seat design, which alleviates installation problems associated with common "dove tail design" seats. Valve torques are lower and more consistent as the seat dynamics are not dependent on being coupled between two flanges. Precision machining of the disc and body allow the cartridge design to maintain a tighter disc to seat tolerance, providing a perfect low torque seal each and every time the valve is cycled. The seat to disc seal is independent of flange support and capable of full rated dead end service. Actuators are directly 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 WE20 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 4-20 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.
