818
Liên hệ
H42W vertical stainless steel flange valve normally is closed, due to the pressure medium inlet end of the pipeline, and overcome the resistance of the spring causes the valve to open. When the pressure is lower than the inlet end of the media outlet end of the spring to the seat leaving the spool valve closes to prevent backflow media, so start-stop back action, thanks to the spring support spool, so the use of vertical or horizontal installation are installed can.
Standard Specification
Structural length standard: GB / T 12221-2005
Connecting flange Standard: GB / T 9113
Pressure temperature rating: GB / T 12224-2005
Test test standard: GB / T 13927-2008