美国仙童FAIRCHILD，22型计算继电器
Model 22 Computing RelayPart Number: M22
Model 22 Pneumatic Computing Relay is a highly versatile control valve designed to perform a number of specialized functions, including averaging, differential, inverting, and totalizing. This high quality unit, which offers up to four inputs as well as positive and negative biasing over a broad range, is available in several configurations to meet most application requirements. The combination of multiple configuration options and accurate response characteristics make the Model 22 the ideal choice in a variety of applications with specific input/output requirements such as override or multi-element control, or as an ON-OFF valve. When used as an ON-OFF valve, the Model 22 may open or close a pneumatic circuit, moving rapidly to a full open or a full closed position when signal pressures deviate from set point. In the full open position, the valve passes full supply pressure without modulation or regulation. The function is achieved by connecting output pressure to the signal chamber. This connection forms a feedback loop so that, once flow is started, the valve is driven wide open. The relay always goes full open or full closed when conditions are as shown in the diagrams on the Rotork Fairchild specification sheets and catalog.Features
Small bleed across relief seat
Multiple inputs available
Adjustable bias range from -18 to +15 psig
Two gauge ports located 90° from supply and outlet ports
Line or panel mounting
Benefits
Assures fast response to even very small signals
Allows versatility in process control applications
Permits variation in output to meet your needs
Versatility in installation in your equipment
Quick and easy installation in the field
型号22计算继电器零件号:M22
22型气动计算继电器是一种高度通用的控制阀，设计用于执行许多专门功能，包括平均，微分，反转和累计。这种高质量的单元提供多达四个输入以及宽范围内的正、负偏置，可用于多种配置，以满足大多数应用要求。多种配置选项和准确的响应特性相结合，使22型成为具有特定输入/输出要求的各种应用的理想选择，例如覆盖或多元件控制，或作为开关阀。当用作开关阀时，型号22可以打开或关闭气动回路，当信号压力偏离设定点时，迅速移动到全开或全关位置。在全开位置，阀门通过全部供应压力，不需要调制或调节。该功能通过将输出压力连接到信号室来实现。这种连接形成了一个反馈回路，这样，一旦流体启动，阀门就会被驱动到全开状态。当条件如Rotork Fairchild规格表和目录上的图表所示时，继电器总是全开或全闭。特性
通过安全阀阀座的小流量
多输入可用
可调偏置范围从-18到+15 psig
两个压力表端口位于90°从供应和出口端口
线路或面板安装
好处
确保快速响应，即使是非常小的信号
允许多功能性的过程控制应用
允许产量的变化，以满足您的需要
多功能性安装在您的设备
现场安装快捷方便
