What is the maximum connection size for a bottom blow-off?

The maximum connection size for a bottom blow-off is established by industry standards and codes, particularly in relation to the effective functioning of blow-off valves and procedures for maintaining equipment such as boilers and tanks. A connection size of 2 ½ inches is specified because it provides sufficient capacity for the rapid discharge of sediment and impurities from the bottom of the tank or boiler. This size ensures that debris can be effectively cleared and that the system can maintain proper operation without excessive back pressure or blockages. Additionally, adhering to this size helps in optimizing the blow-off process, allowing for better maintenance and longevity of the equipment involved.

The other sizes do not meet the required standards for efficient operation in this regard, as they may either restrict flow or not adequately accommodate the volume needed during maintenance activities.