Lube Oil Pump · Lube Oil Pumps
The Houttuin 249.40 data sheet describes a horizontal, self-priming screw pump meant for liquids that do not lubricate. It belongs to series 249, a line of rotating, horizontal positive-displacement pumps with double-entry twin screws. Houttuin lists bilge/ballast, general service, cargo and transfer duties for the series. The media named are water, seawater, oils, heavy fuel oils and light products. Two inter-meshing screws turning in the casing are credited with high pumping efficiency, constant axial flow and strong suction. Torque from the driven spindle reaches the idler spindle through oil-lubricated timing gears in an attached gearbox, outside the pumping area.
Bearings and gears together hold a small gap between the screws, so the screws never touch metal to metal. Single unbalanced mechanical seals keep the pumped liquid away from bearings and gearbox, and the seal data refer to DIN 24960 / API. A spring-loaded relief valve for overload protection can be supplied, and heating of the pump foot is optional. The performance block lists these upper limits for the series: capacity 2500 m3/h, viscosity 0.6 to 5000 cSt, liquid temperature 140 °C and speed 1750 rpm.
Inlet pressure reaches 10 bar and outlet and differential pressure 16 bar. Flanges follow DIN or ANSI. Exact data depend on viscosity and speed and sit in the individual characteristics. Six size groups are tabulated: 170/178, 190/198, 210/226, 235/244, 265/275/290 and 375. Flanges are PN 16 to DIN 2533, from DN 200 discharge and DN 250 suction on size 170/178 to DN 400 and DN 450 on size 375. Approximate weights run from 600 kg for 170/178 through 720, 890, 1400 and 2300 kg to 4000 kg for size 375. Rotation is clockwise seen from the drive side.
Sources: Houttuin datasheet 249.40, checked 05.10.2026
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