SKYWEAL水流开关    Flow detection switches FS   Series        Flow Switches FS-133 G3/4 tube versions Low flow version available in G 3/4 tube Maximum Operating Pressure 10 bar WRAS approved for use in cold and hot water up to 105ºC Temperature rated to105ºC   These flow switches are designed for use in liquid flow systems at pressures up to 10 bar and temperatures up to 105ºC. The design is based around a moving magnet and a fixed reed switch with a low flow restriction. The switches are designed to be used in liquids only and should not be used in systems with significant amounts of solid particles.   Technical Specification                                                                               Material                        PA+GF Colour                         Black Temp. Range C                 -20 / +105 F -4 ./ +205 FS133A              FS133B              FS133C Must operate flow rate*           litres/min            2.0                 0.90                 3.75 US Gal/min          0.53                 0.24                 0.99 Must release flow rate #          litres/min            0.3                  0.25                 1.40 US Gal/min          0.08                 0.07                 0.37 Cable                          25cm PVC insulated   Electrical Specification                                                                              Contact Form                        N/O with no flow Switching Power Max        VA       10/50 Switching Voltage AC Max    V        240 Switching Voltage DC Max    V       120 Switching Current Max        A       0.6            All ratings are for resistive load only.   Standard Parts                      Must operate l/min                    Must release l/min           Approv als   FS13AA                                2.0                                     0.3                 WRAS FS133B                               0.90                                    0.25                 WRAS FS133C                               3.75                                    1.40                 WRAS Custom versions can be made for particular applications. Please contact Cynergy3 with your requirements.   * The switch will have operated (contacts close) when the flow rate rises above this value. # The switch will have released (contacts open) when the flow rate falls below this value. NB Operate and release flow rates only apply when the switch is mounted with the flow direction vertical. The sensitivity of the switch is reduced when mounted with the flow direction horizontal.   Installation                                                                                                             Flow switches can be mounted with the flow direction horizontal or vertical (upward flow). The cap with cable connection must always be upwards, as the piston is returned to its released position by gravity.   Custom versions can be made for particular applications. Please contact skyweal with your requirements