fire pump design according to NPFA20 IS FURNISHED WITH MECHANICAL SEAL INSTEAD OF PACKING IS ACCEPTED OR NOT?
Question by mohamed1922003: fire pump design according to NPFA20 IS FURNISHED WITH MECHANICAL SEAL INSTEAD OF PACKING IS ACCEPTED OR NOT?
Answer by KILOWATT
Packing is recommended because it doesn’t have catastrophic failure like a seal will. It is up to the Authority Having Jurisdiction (Engineer, Inspector or Fire Marshall) as to whether or not a mechanical seal will be acceptable on that installation.
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Examines the fundamentals and practice of both the design and operation of mechanical seal
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