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English to Russian translations [PRO] Tech/Engineering - Engineering: Industrial / Теплообменники
English term or phrase:velocity recovery stack
The Manufacturers should be asked to quote the additional (installed) cost of velocity recovery stacks and the horsepower required with and without velocity recovery:
For induced draught units on projects or locations with high electric power costs, particularly where maximum natural draught duty to limit flare losses during power failures is desired
If the fan velocity pressure exceeds 7.6 mm (0.3 in) of water column
Velocity recovery stacks should normally not be credited with pressure recovery greater than 67% of theoretical recovery.