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Equipos De Bombeo > Vertical Pumps > Wet Pit - Radial Mixed And Axial Flow
VOP (VS3) Axial Flow and
VOA (VS2) Mixed Flow


VCT Mixed Flow


AFV Axial Flow

Standards
• API 610 (VS3 and VS2), latest edition
• Flowserve
Operating Parameters
VOA:
• Flows to 32 000 m3/h (140 000 gpm)
• Heads to 100 m (325 ft)
• Speeds to 1800 rpm
• Impeller sizes from 300 mm (12 in)
to 1625 mm (65 in)
VOP:
• Flows to 50 000 m3/h (220 000 gpm)
• Heads to 14 m (45 ft)
• Speeds to 1000 rpm
• Impeller sizes from 350 mm (14 in)
to 2000 mm (80 in)
Features
• Above- or below-grade discharge
available
• Cast or fabricated discharge head
depending on pump size
• Cast bowl assembly
• Impeller wear rings standard on VOP
and optional on VOA
• Mechanically and hydraulically
balanced design
• Independent pump axial bearing
• Tooth or flexible coupling
• Engine or steam turbine drive options
• Options
– Pullout design available on
VOA model
– Case wear rings
– Packed gland or mechanical seal
Standards
• Flowserve
Operating Parameters
• Flows to 113 550 m3/h (500 000 gpm)
• Heads to 110 m (350 ft)
• Sizes from 500 mm (20 in) to
3000 mm (120 in)
Features
• Above- or below-grade discharge
available
• Non pull-out design or space-saving,
pull-out construction
• Open, semi-open and closed
impellers available
• Oil, fresh water or self-lubricating
column construction
• Integral bearing retainer
• Packed stuffing box or
mechanical seal
• Rigid, adjustable coupling
• Shaft sleeves under the bearings and
stuffing box
• Options
– Thrust collar
– Sand cap
– Thrust bearing in the motor or
pump support head
• Engineered to customer specifications
See Bulletin PS-40-6
Standards
• Flowserve
Operating Parameters
• Flows to 180 000 m3/h
(800 000 gpm)
• Heads to 11 m (35 ft)
• Speeds to 1770 rpm
• Sizes from 200 mm (8 in)
to 3.1 m (123 in)
• Settings to 8 m (25 ft)
Features
• Above- or below-grade discharge
available
• Discharge head cast for sizes
to 500 mm (20 in)
– Larger sizes are fabricated
• Bowl assembly cast for sizes
200 mm (8 in) to 685 mm (27 in)
– Larger sizes fabricated
• Mechanically and hydraulically
balanced axial flow design impeller
• Drive options
– Vertical hollow shaft motor
– Vertical solid shaft motor. Rigid
coupling provided between motor
and pump for shaft diameters
greater than 75 mm (3 in)
– Engine or steam turbine drive options
• Options
– Pull-out design
– Casing and impeller wear rings
See Bulletin PS-40-3