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
, ranging from washing machines to rocket engine turbopumps. Topics include materials, tribology, heat transfer and solid mechanics. A variety of simple and complex models are proposed and evaluated and specific problems such as heat checking, blistering and instability are considered. Offers 64 tables and 364 references plus
useful recommendations regarding the future of mechanical seal design.
List Price: $ 365.00
Price: $ 333.40
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