TATTLE Relief Vent Indicators

Relief Valve Indicators for ammonia and other refrigerants including CO2 carbon dioxide.
Indicates when a relief valve has vented with a visual flag and optional switch contacts.

Design pressure standard 20.6Bar, with HP models 46.5Bar

Sizes 1″FPT, 1-1/4″FPT and 1-1/2″FPT in threaded connections (nominal 20mm, 25mm & 32mm)
To suit flanges 50ND (2″), 65ND (2-1/2″), 80ND (3″) and 100ND (4″)