Betts 20" Full Opening Manhole With 10" Relief Valve

Model 2730

PPV Vent

Flow Rated and Marked

Threaded Holddowns

6" (152.4mm) High Collar Provided

Pressure Relief Valve Setting 4.13 PSIG

Rated Pressure Actuated Emergency Venting 208,000 Cubic Feet Free Air per Hour @ 4.95 PSIG