Weight or spring loaded valves with a side inlet capable of high capacity vacuum relief that vent to a closed header system. Designed to work closer to a tank's MAWV, increasing productivity, reducing emissions and product evaporation
Type 4142 valves allow tanks to work closer to their MAWV thus increasing productivity, reducing emissions and product evaporation. Increased flow capacities reduce the valve’s size, corresponding connections and piping costs in applications for storage tank farms, oil and gas production, the petroleum, pharmaceutical and chemical sectors.
Aluminum, carbon steel, stainless steel