Sanitary No Pressure Manhole

Product  Desription

Stainless steel manhole is a safety emergency ventilation device installed on the top of the storage tank. It is usually used with fireproof and mechanical breathing valve. It can not only avoid accidents caused by sudden overpressure or vacuum in the tank, but also play the role of safety fire resistance. It has the advantages of constant pressure discharge, constant pressure suction, flexible opening and closing, safe fire resistance, compact structure, good sealing performance, safe and reliable.