Propeller Pumps type PV
APPLICATIONS Vertical propeller pumps for pumping clean and treated liquids, without the presence of important solid bodies such as: cooling water, drinking water, hot water, sea water, sewage, etc. This pump can also be used wherever large volume of liquids need to be raised against comparatively small discharge heights. Are specially appropiated as: Pumps for circulations of cooling water In power plants, refineries, industrial installations and chemical industries. Pumps for handling raw water. In irrigation projects, water treatment, fisheries and dry docks. Pumps for drainage of rainwater. In protection stations against floods. For drainage of rainwater, and in waste water plants. CHARACTERISTICS Capacity Height Speed Q = up to 10.000 m3/h. H = up to 12 m n = up to 1.500 r.p.m..: P. 1 :.
TECHNICAL DATA Design characteristics Vertical propeller pumps, simple stage, for installation in deep wells. Conforms to with the following normalised elements: Pump body, tube sections, column discharge elbow, support drive. Optimum with removable rotor, type PVa, the rotating pieces unit along with the volute chamber can be dismounted through the tube column and the impeller elbow without needing to dismount the discharge tubes. Propeller Amply sized curved blades are set in the propeller head. The adjustment of the blade angles permit variation of the pump characteristics within the limits as given in the curve characteristics. Transmission shaft Designed for working below the first critical velocity. The union between them is achieved by means of muff no coupling. In the areas of contact with the radial bearings and the gaskets, the shaft is protected with sleeves. By installing protecting tubes with airtight sealings the shafts unit can be isolated from the pumped medium. The shaft tightness at the point it reaches the pump housing is assured by placing an easily accesible stuffing box in the discharge elbow. Radial and thrust bearings The weight of the pump rotor along with the resulting hydraulic thrust is supported by axial bearings amply dimensioned which have been calculated in such a way that its lifetime in normal working conditions is at least 30.000 hours. Along with this bearing another with balls is installed as support to the radial force originating in the upper part of the pump. The lubrication if the bearings is in an oil bath and, depending on the axial thrust, the bearing holding can be supplied with or without refrigeration. Bearings The pump rotor is radially guided by various bearings situated in the volute chamber and spider. The bearings can be manufactured in two classes: a) Bronze bearings lubricated by grease. b) Rubber bearings lubricated by the pumped medium..: P. 2 :.
RATING CHARTS Executions.: P. 3 :.
SECTIONAL DRAWINGS.: P. 4 :.
SECTIONAL DRAWINGS.: Pg. 5 :.
PART LIST Ref Description Ref Description Ref Description Ref Description 1 Drive pedestal 16 Suspension pipe with guide piece 31 Shaft protecting tube 46 Suction bellmouth 2 Coupling 17 Shaft protecting tube 32 Shaft protecting tube 47 Locking screw 3 Locknut 18 Drive shaft 33 Column pipe 48 Tension elements 4 Grease pump 19 Muff coupling 34 Column pipe 49 Ball bearings 5 Pulley 20 Discharge bend 35 Adjustment ring 50 Support spacer 6 Bearing housing cover 21 Bearing spider 36 O ring 51 Oil retaining tube 7 Bearing housing 22 Foundation ring 37 Shaft sleeve 52 Oil viewer 8 Funnel 23 Column pipe 38 Rubber bearing 53 Axial bearing 9 Packing gland 24 Bronze bearing 39 Bronze bearing 54 Adjustment ring 10 Packing 25 Shaft sleeve 40 Diffusor 55 Counterweight elements 11 Lantern ring 26 Lubrication tube 41 Guide pipe 56 Attachment disk 12 Stuffing box insert 27 Bearing spider 42 Axial ring casing 57 Attachment disk 13 O ring 28 Rubber bearing 43 Blade 56 O ring 14 Shaft sleeve 29 O ring 44 Propeller hub 59 O ring 15 Cover 30 Pump shaft 45 Propeller cap 60 Clamping strap MATERIALS Sewage Description Clean water Neutral Slightly abrasive Slightly abrasive Slightly aggressive Sea water Blades Brass Brass Hub and axial ring casing Suction bellmouth, diffusor, spider bearing, discharge bend Cast iron Cast iron Cast iron Cast iron Cast iron Column pipe Carbon steel Carbon steel Cast iron Ni-hard Cast iron Shaft protecting tube Carbon steel Carbon steel Shafts Carbon steel Carbon steel Muff coupling Carbon steel Carbon steel Shaft sleeves Bronze bearings Bronze Bronze Bronze Bronze Rubber bearings Rubber + Phen. resin Rubber + Phen. resin Rubber + Stain. st. Rubber + Stain. st. Lubrication tube Copper Copper Copper Screws Carbon steel Carbon steel Carbon steel Packing Graphited cotton O rings Rubber.: Pg. 6 :.
DIMENSIONS Type NW Propeller Ø a g2 h Dc Ø DE Ø E min F1 G1 Ø HK HM PV 250 258 220 350 350 660 420 375 100 550 560 350 PV 300 285 240 400 400 770 470 440 110 650 640 350 PV 300 316 270 400 400 770 525 460 110 650 640 400 PV 350 350 300 450 450 850 580 500 110 730 720 400 PV 400 390 330 500 500 940 645 570 120 800 800 450 PV 450 430 360 550 550 1060 710 630 120 900 880 450 PV 500 475 400 600 600 1060 785 700 120 900 950 550 PV 600 525 440 600 700 1230 870 670 130 1050 1100 550 PV 600 585 490 600 700 1230 970 750 130 1050 1100 570 PV 700 645 540 700 800 1400 1070 850 130 1190 1250 600 PV 800 645 540 800 900 1600 1070 900 140 1360 1320 650 PV 800 900 950 1400 650 800 715 590 1600 1180 140 1360 PVa 900 1000 1000 1320 1000 PV 800 790 650 800 900 1600 1320 1060 140 1360 1400 650 PVa 900 790 650 900 1000 1760 1310 1100 140 1490 1450 1000 PV 1180 1550 650 900 875 730 900 1000 1760 1450 140 1490 PVa 1220 1450 1000 PV 970 800 1600 1320 1700 700 1000 1000 1100 2000 150 1700 PVa 970 800 1600 1350 1600 1000.: P. 7 :.
HIDROTECAR, S.A. Factory and Offices Pol. Villayuda - C/ Ribera, s/n 09007 BURGOS - SPAIN P.O. Box 281-09080 BURGOS - SPAIN Telf. (947) 48 44 00 / 04 / 08 Fax: (947) 48 45 57 e-mail: hidrotecar@hidrotecar.com HIDROTECAR, S.A. Central Branch. C/ Comandante Zorita, 13-4º, Of. 401 28020 MADRID - SPAIN Telf. (91) 534 76 47-534 73 54 Fax: (91) 535 07 24 e-mail: hidrotecarmadrid@hidrotecar.com.: P. 8 :.