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The vacuum pump is usually of the steam-jet type if high-pressure steam is available. If nigh-pressure steam is not available, more expensive mechanical pumps may be used. These may be either a water-ring (Hytor) type or a reciprocating pump. [Pg.1147]

Figure 8.36. Nash Hytor liquid ring pump...

See other pages where Hytor pumps is mentioned: [Pg.346] [Pg.885] [Pg.346] [Pg.346] [Pg.885] [Pg.346] [Pg.633] [Pg.365] [Pg.51] [Pg.365]