Characteristic curves n ≈ 2900 rpm

ConstructionSingle-impeller submersible pumps, with free-flow (vortex) impeller.GQS: with vertical threaded delivery port (G 2”).GQV: with horizontal flanged and threaded delivery port

(DN 50 - G 2”).Double mechanical shaft seal with interposed oil chamber, toprotect against dry-running.

ApplicationsFor domestic or industrial waste water, dirty water with solids upto 50 mm grain size, for liquids which are compatible with thepump materials.For draining rooms or or emptying tanks.Extraction of water from ponds, streams or pits and for rainwatercollection.

Operating conditionsLiquid temperature up to 35° C.pH value: 6-11.Maximum immersion depth: 5 m.Minimum immersion depth: 275 mm.Continuous duty (with submerged motor).

Motor2-pole induction motor, 50 Hz (n ≈ 2900 rpm).GQV, GQS: three-phase 230 V ± 10%;

three-phase 400 V ± 10%;.Cable: H07RN-F, 4G1 mm2, length 10 m, without plug.

GQVM, GQSM: single-phase 230 V ± 10%,with float switch and thermal protector.Incorporated capacitor.Cable: H07RN-F, 3G1 mm2, length 10 m, withplug CEI-UNEL 47166.

Insulation class F.Protection IP X8 (for continuous immersion)Triple impregnation humidity-proof dry winding.Constructed in accordance with: EN 60034-1;

EN 60335-1, EN 60335-2-41.

Other features on request- Other voltages. - Frequency 60 Hz (as per 60 Hz data sheet).- Other mechanical seal. - Cable length 20 m.- Motor suitable for operation with frequency converter.- Three-phase pumps with incorporated float switch.

MaterialsComponent Material

Pump casing Cast iron GJL 200 EN 1561

Impeller

Motor jacket

Jacket cover Chrome-nickel steel AISI 304

Casing cover

Handle Polypropylene (with frame in AISI 304)

Shaft Chrome-nickel steel AISI 304

Mechanical seal: upper Ceramic alumina/Carbon/NBR

lower

Seal lubrication oil Oil for food/pharmaceutical machinery

m

18

4

6

2

8

12

10

14

l/minm /h30

400 50030 3610 20

3002001000

0

H

Q 600

0 4020 60 80 100 120Imp. g.p.m.

0

ft

20

40

10

30

50GQS, GQV 50-15GQS, GQV 50-13GQS, GQV 50-11GQS, GQV 50-9GQS, GQV 50-8

227

33

Submersible Sewage and Drainage PumpsGQSGQS, , GQVGQV

PATENTED

228

450

450

450

450

450

0,95

1,1

1,45

1,8

2,2

0,55

0,75

0,9

1,1

1,5

0,75

1

1,2

1,5

2

8

9,3

11

12,8

15

7,4

8,8

10,5

12,2

14,4

6,9

8,3

10

11,6

13,7

6,3

7,7

9,3

11

13

5,6

7

8,6

10,3

12,2

4,8

6,2

7,8

9,5

11,3

4

5,3

7

8,6

10,4

3

4,3

6,2

7,7

9,5

1,8

3,2

5,2

6,7

8,5

350

230V Capacitor 0 3 6 9 12 15 18

Vc

16

16

25

30

35

4,3

4,8

6,6

8,4

12

A kW kW HP 0 50 100 150 200 250 300

1~ P2P1 21

400

24

-

2,2

4,2

5,7

7,4

450

27

-

-

1,8

3,3

4,8

550

33

-

-

-

2

3,5

600

36

-

-

3

4,5

6,2

500

30Qm /h3

l/min

H m

230V

2,6

3,1

4

5,2

6,9

1,5

1,8

2,3

3

4

A

3~

GQS 50-8GQV 50-8GQS 50-9GQV 50-9GQS 50-11GQV 50-11GQS 50-13GQV 50-13GQS 50-15GQV 50-15

GQSM 50-8GQVM 50-8GQSM 50-9GQVM 50-9GQSM 50-11GQVM 50-11GQSM 50-13GQVM 50-13GQSM 50-15GQVM 50-15

400V

A

Performance n ≈ 2900 rpm

Dimensions and weights

mmmm

On

Off

kg

h m

in

h m

ax

Ø50

DN 5

0

90

H

8994

242

430452

M 8 Ø19

Ø165

Ø125

Ø90G 2

Ø50

G 2

ISO

228

GQV15

15,21619

20,5-

1616,218

20,5-

22

GQV(M) 50-8 460GQV(M) 50-9 460

535535

275275

485GQV(M) 50-11 560 300505GQV(M) 50-13 580 320

GQVM

320580505GQV 50-15

kgGQS14,815

15,818,820,3

-

15,816

17,820,3

-21,8

GQS(M) 50-8 460GQS(M) 50-9 460

535535

275275

485GQS(M) 50-11 560 300505GQS(M) 50-13 580 320

GQSM

320580505GQS 50-15350610535GQVM 50-15350610535GQSM 50-15

H h max h minH h max h min

On

Off

Ø 50

8994

h m

in

h m

ax

H

145

G 2 ISO 228

130 150

264

TYPE

P2 Rated motor power output. Kinematic viscosity ν = max 20 mm2/sec.P1 Max. power input. Density ρ = 1000 kg/m3.

Submersible Sewage and Drainage PumpsGQVGQV, , GQSGQS

TYPE

229

Submersible Sewage and Drainage PumpsGQSGQS, , GQVGQV

33

mm

Pump with threaded ports:pipes screwed into the ports

Pump with threaded ports:pipes with union couplings(locally available)

Pump with DN 50 flanged ports:pipes with counter-flanges

G2 IS

O 22

813

4176

80 22

3/4"

86 161284

500 min

5212

100

45

110166

132

16

380

360

min

138

430 max

GQV(M) 50-8GQV(M) 50-9

580580

320320

GQV(M) 50-11 605 345GQV(M) 50-13 625 365

365625GQV 50-15395655GQVM 50-15

On

Off

8994

hmax

hmin

h m

ax

h m

in

min 500 x 5003.93.037/3

3.93.037/3

Installation examples

TYPE

230

Features

Maximum flexibility of connection:

- Flange DN 50 PN 10 EN 1092-2

- N. 4 M8 holes on Ø 90 for duckfoot coupling SA-G2”

- G 2” ISO 228

Easy adjustment of the float switch:to allow the adjustement of start/stoppump levels.

Handle in polypropylene, with framein stainless steel.

Shaft in chrome-nickel stainless steel.

Easy inspection of the capacitor area.

The double shaft seal with oil chamberseparates the motor from the waterand provides further protection again-st accidental operation when dry.

Chamber with food/pharmaceuticalmachinery oil

The free-fow impeller (vortex)costruction is particulary suitablefor liquids containing solids up to 50mm grain size.

PATENTEDCable length 10 m, pump single-phasewith plug

Ring against accidental extractionof the cable.

Pump casing with epoxy cataphoresistreatment joined to the externalpaint for a greater protection againstthe rust.

Impeller with epoxy cataphoresistreatment for a greater protectionagainst the rust.

Relief valve: the pump is fitted to a reliefvalve for air release around the impellergranting a proper pump priming alsoafter long standstill periods.

Submersible Sewage and Drainage PumpsGQSGQS, , GQVGQV

GQV

GQS

G 2 vertical, upward delivery port forinstallation in small pits, without theneed for an elbow on the pump.