Home / Spare Parts / Tanker Spares / Depression ValveDepression Valve Request a Quote Home / Spare Parts / Tanker Spares / Depression ValveDepression Valve Request a Quote Product Code - WH145562 Maximun Working Pressure (ADJUSTABLE) = -0.3 BAR TO -0.8 BAR (-4.3 PSI TO -11.6 PSI) Working Temprature = -15 DEG TO + 60 DEG 1 1/2" BSP Thread