Hoffman 78 3/4'' Water Main Vent Valve.
FEATURESFor use on high pressure hot or cold water or glycol mains and process applications with specific gravity greater than 0.7.Cast brass body.Tapped at top for 1⁄8'' NPT safety drain connection for discharging moisture.Body unScrews for easy cleaning.Built-in Check Valve.3⁄4'' NPT straight shank.Maximum operating pressure 150 psig (10.3 bar)(Drop aWay pressure - maximum pressure against which the vent can open).Maximum hydrostatic pressure 450 psig (31.1 bar).Maximum Temperature 250°F (121°C).
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