Horizontal centrifugal pump WEIR Oil Gas

Heavy duty process horizontal pumps, between bearings with a axially split casing and double suction impeller.

Pump components geometry optimised through hydraulic, structural, thermal and dynamic F.E.M. analysis lead to an high product reliability.
Double suction, closed impeller, with a solid hub, to maintain axial balance, under different operating conditions.
Rotor operates away it's critical speeds.
Near centerline casing mounting for high temperature stability.
Deep stuffing boxes integrally cast with pump casing, in accordance to API 682 std suitable to accept any type of mechanical or packing seals.
Axial split bearing housing for easy inspection and maintenance procedure.
Labyrinths and deflectors at either bearing housing to maximise protection against dirt.
A wide range of sizes and material combinations complete the variety of the offered product.

Main design features

Fully designed according to latest edition of API 610 std.
Suction and discharge nozzles, integrally cast with casing, are arranged on side-side position.
'CARB' or hydrodynamic line bearing for high temperature application.
Three bearings arrangements available:
Ball Radial / Ball Thrust
Sleeve Radial / Ball Thrust
Sleeve Radial / Tilting Pads Thrust (Kingsbury Type).