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尺寸小,价格低,1.4到20英寸水柱范围
Reliable and convenient, the 1996-5 and 1996-20 Gas Pressure Switches serve as a compact, low cost switch for gas fired furnaces and equipment. Pressure ranges for both models are ideal for high or low gas pressure interlock. Visible set point and on-off indicators add convenience in servicing. Use either NO or NC contacts on SPDT switch. Bottom connection has both 1/8" female and 1/4" male threads for pipe nipple or coupling. Top connection vents diaphragm chamber to outside or to furnace combustion chamber. Mount switch with diaphragm in a horizontal position and gas pressure connection at bottom. Used with natural, manufactured or LP gas. Also see Model 1950G.
                                        
                                    
应用及案例
● Gas furnaces
● Natural, manufactured or LP gas applications
产品特色
● Visible set point and on-off indicator simplifies operation and trouble shooting
● Compact size and low cost make it ideal for gas fired or gas equipment OEM applications
1996-20型气体-空气压力开关。连接、尺寸和可视开-关指示器如图所示。 注意设定点调整窗口。要调整开关设定点,转动上方的螺丝直到红棒到达所需设定点。完整说明随产品提供。
可靠而方便 
 1996-20型和1996-5型气体压力开关是一种适用于气体燃烧炉和设备的小体积、低价位开关。宽达2"~20"的压力范围适用于高/低气体压力联锁。可视设定点和开-关指示器为开关的工作增添了方便。使用SPDT开关常开或常闭触点。底部连接包括配合管道接头或耦合器的1/8"阴螺纹和1/4"阳螺纹连接。顶部连接使膜片室同外界或锅炉的燃烧室相通。这种压力开关可用于天燃气体、人造气体或LP气体。
物理数据 
 温度范围:32°F (-30°F干气体或空气)~110°F 
 最大压力波动:10 Psig
 额定压力:45 英寸水柱 
 压力连接:1/8" 阴螺纹NPT或1/4" 阳螺纹NPT 
 通风孔连接:1/8" NPT
 电气额定值:15 Amps, 120-480 Volts, 60 Hz, A.C. 阻性1/8 H.P. @ 125 Volts, 1/4 H.P. @ 250 Volts, 60 Hz. A.C. 
 导线连接:3螺丝型,通用,常型和常闭 
 设定点调整:螺丝型,带可视指示,在封装内。
 开-关指示器:位于封装外的窗口内。一眼即可看出压力是否在设定点之上。
 外壳:铸铝外壳,带防腐化学涂层。镀锌钢标志。
 膜片:模制丁腈橡胶 
 校准弹簧:不锈钢
 重量:1 Lb. 2 Ozs. 
 
                             