Description
Model 78 - Water Main Vent Valve
- For 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)*
- Maximum hydrostatic pressure 450 psig (31.1 bar)
- Maximum temperature 250°F (121°C) *Drop away pressure (maximum pressure against which the vent can open)
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