The OPW 61SO Overfill Prevention Valve is designed to prevent the overfill of underground storage tanks by providing a positive shut-off of product delivery. The shut-off valve is an integral part of the drop tube used for gravity filling. The OPW 61SO allows easy installation (without breaking concrete) and requires no special
-Simple, Easy and Quick Installation – no excavation or special manholes required.
-Economical – costs a fraction of expensive, complicated and difficultto-install valves.
-Furnished Complete – supplied with new upper and lower drop tubes, mounting hardware and thorough instructions for quick job site time.
-Completely Automatic Operation – no prechecks to perform, no resets,and no overrides to be broken or abused.
-No Pressurization of the Tank – operates directly from liquid level.
-Will Accept a Dipstick for Gauging-Retrofits Directly – for both new and existing tanks with 4″ fill risers.
-Quick Drain Feature – automatically drains hose when head pressure is relieved.