Pump Catalogue Booklet1111.5-10 Riovar�/Riovar� Z

Circulator Pumpswith Manual Speed Variation

Fields of Application� Hot-water heating systems� Heat recovery systems

Medium HandledClean water or water treated in accordance with the relevantregulations, not containing aggressive, abrasive or solid sub-stances.Water with commercial antifreeze agents based on glycols(mixture ratio max. 1 : 1) with inhibitors (antirust).If the glycol content exceeds 20 %, the operating data have tobe checked and verified.

Operating DataScrew-ended pumps Flanged pumpsRp 1 and 1 1/4 DN 32 to 100

Q up to 6.2 m3/h, 1.7 l/s up to 80 m3/h, 22.2 l/sH up to 3.4 m up to 16 mP1 up to 170 W up to 3500 Wp 10 bar 6 bar, 10 bar on optiont +20 oC up to +130 oC

(For temperature limit values please refer to the pump variant table onpage 12)

Designation Riovar - Z 4 4 - 8 E

Type seriesTwin pumpNominal diameter in cm4-pole motorsMax. motor rating P2 in watt : 10Single-phase alternating current (D = three-phase current)

DesignRiovar: Maintenance-free wet rotor pump (glandless), flangedor screw-ended, four speed levels.Riovar Z: Riovar twin pump design for standby operation (inte-grated swing check valve) or peak-load operation on option(parallel operation).

BearingsMedium-lubricated special plain bearings.

MaterialsVolute casing Cast iron EN-GJL-250 1)Shaft Chrome steelImpeller PlasticBearings Special carbon1) to EN 1561 (previously GG-25)

Drive *)Canned motor, IP 42, thermal class F

1~230 V, 50 Hz3~400 V, 50 Hz

*) If a frequency inverter (included in the hyatronic mb standard design) is usedfor speed control (available for motor size 18 and above), make sure that themotor voltage is sinusoidal. Fit a sine filter, if required.

Special DesignSee pump variant table on page 12.

Riovar

Riovar

Riovar

2

Selection Charts, Single Pumps ≈1400 1/min

Riovar

3

Selection Chart, Twin Pumps ≈1400 1/min

The characteristic curves refer to operation of one pump.

Condensation-proofwinding, also suitable forcold-water operation

Can of antimagneticstainless steel

4 speed levelsallow exact adjustmentto the system conditions

Canned motor with highstarting torque at eachspeed level

Riovar

4

Screwed joint,above DN 32 flanges

Hydraulically optimizedimpeller of wear-resistantplastic

Carbon plain bearings,wear-resistant, safe torun dry, low-noise

Shaft of corrosion-resistant chrome steel

Riovar

5

Single Pump Characteristic Curves ≈1400 1/mino = speed level and ηopt

Riovar

6

Single Pump Characteristic Curves ≈1400 1/mino = speed level and ηopt

Riovar

7

Twin Pump Characteristic Curves ≈1400 1/minThe characteristic curves refer to operation of one pump.

Riovar

8

Technical DataRiovar 1) Speed

l lP1 Motor

t tiSwitch

l 3)Max. permissible operating pressure

ISO 7/I *)p

level protection2

plug 3) 6 bar 10 barRp or DN 1/min W A 2) kg kg

24-2 D 1 4321

1300125011501050

112866446

0.350.230.170.13

- C - - 00 126 839 5.4

24-8 D 1 4321

1350130012001150

15012010080

0.530.380.280.22

V C - - 00 126 841 7.3

34-2 D 1 1/4 4321

1300125011501050

112866446

0.350.230.170.13

- C - - 00 126 843 5.8

34-8 D 1 1/4 4321

1350130012001150

15012010080

0.530.380.280.22

V C - - 00 126 845 7.8

44-8 E 40 4321

1250120011001000

200190175155

1.11.050.950.85

V E 00 126 836 10.3 00 126 846 11.8

44-8 D 40 4321

1250115011001000

17014011085

0.530.380.280.22

V C 00 126 837 10.3 00 126 847 11.8

44-18 D 40 4321

130011501050850

365320260185

0.90.750.60.45

V C 29 120 663 19.4 29 120 664 20.9

54-18 D 50 4321

1350130012001100

290260220165

0.90.750.60.45

V C 29 120 665 14.0 29 120 666 16.2

54-30 D 50 4321

1350125011501050

635585490395

1.61.31.10.8

V C 29 120 667 25.0 29 120 668 27.6

54-100 D 50 4321

1400135013001200

1650150013301100

4.03.63.12.7

V C - - 29 120 669 67.0

64-30 D 65 4321

1400130012001100

580530450370

1.61.31.10.8

V C 29 120 670 27.0 29 120 671 29.8

64-48 D 65 4321

130012001050950

970880715560

2.21.91.51.2

V C 29 120 672 28.0 29 120 673 31.0

64-160 D 65 4321

1400130012001100

2500220018001350

6.15.34.63.7

V C - - 29 120 674 79.0

84-48 D 80 4321

1350130011501050

745685585490

2.21.91.51.2

V C 29 120 675 32.5 29 120 676 35.3

84-75 D 80 4321

1400135012501100

133012601140920

3.22.82.52.2

V C 29 120 677 38.5 29 120 678 40.4

84-250 D 80 4321

1400130012001100

3500310027002300

8.68.07.36.7

V C - - 29 120 679 97.0

104-110 D 100 4321

1400130012001100

1650150013001000

4.13.63.12.6

V C 29 120 680 43.5 29 120 681 46.8

104-250 D 100 4321

1400130012001100

3400320027002300

8.68.07.36.7

V C - - 29 120 682 109.5

Riovar

9

Technical Data

Riovar Z 1) Speedl l

P1 Motort ti

Switchl 3)

Max. permissible operating pressureplevel protection

2)plug 3) 6 bar 10 bar

DN 1/min W A2)

kg kg

Z 44-8 E 40 4321

1250120011001000

200190175155

1.11.050.950.85

V E 00 126 870 20.0 00 126 872 22.0

Z 44-8 D 40 4321

1250115011001000

17014011085

0.530.380.280.22

V C 00 126 871 20.0 00 126 873 21.0

Z 44-18 D 40 4321

130011501050850

365320260185

0.90.750.60.45

V C 48 837 867 42.0 48 837 873 44.0

Z 54-18 D 50 4321

1350130012001100

290260220165

0.90.750.60.45

V C 29 120 687 27.0 29 120 688 29.0

Z 54-30 D 50 4321

1350125011501050

635585490395

1.61.31.10.8

V C 48 837 868 54.5 48 837 874 57.0

Z 64-30 D 65 4321

1400130012001100

580530450370

1.61.31.10.8

V C 29 120 689 58.0 29 120 690 59.0

Z 64-48 D 65 4321

130012001050950

970880715560

2.21.91.51.2

V C 48 837 869 57.0 48 837 875 61.0

Z 84-48 D 80 4321

1350130011501050

745685585490

2.21.91.51.2

V C 29 120 691 62.0 29 120 692 64.0

Z 84-75 D 80 4321

1400135012501100

133012601140920

3.22.82.52.2

V C 48 837 870 72.0 48 837 876 73.0

Z 104-110 D 100 4321

1400130012001100

1650150013001000

4.13.63.12.6

V C 29 120 693 90.5 29 120 694 91.5

*) Gaskets are included in the scope of supply. For union ends and union nuts, see Pump Accessories.1) E = 1~230 V, D = 3~400 V2) - = No motor protection required, anti-jam motors.

V = Full protection of motor by way of integrated temperature switches in connection with Riovar switchgears DV or, for three-phase current pumps, DUV 2-G or DDV 4.3) Switch plug variants, if a Riovar switchgear is used.

Min. PressureMin. pressure p min at the pump suction nozzle to avoid cavita-tion noise at an ambient temperature of +40 °C and a pumped-water temperature of �max.:

The values are applicable up to 300 m above sea level. Forinstallation heights >300 m, +0.01 bar/100 m have to be added.

t 50 oC 95 oC 110 oC 130 oC

pminRiovar bar bar bar bar

24-2/34-224-8/34-8

0.050.05

0.20.2

0.80.8

2.12.1

44-844-18

0.050.05

0.20.5

0.81.1

2.12.4

54-1854-3054-100

0.050.050.3

0.30.51.0

0.91.11.6

2.22.42.9

64-3064-4864-160

0.050.050.3

0.30.51.0

0.91.11.6

2.22.42.9

84-4884-7584-250

0.050.050.3

0.30.51.0

0.91.11.6

2.22.42.9

104-110104-250

0.050.3

0.51.0

1.11.6

2.42.9

Fig

.

Outline Drawings Riovar

Riovar

10

Fig. 1 Fig. 2Flange dimensions PN 6, DIN 2531

PN 16, DIN 2533

Dimension Table

ISO 7/I ISO 228

D g k i zRiovar Rp/DN G a b1 b2 c h PN 6 PN 16 PN 6 PN 16 PN 6 PN 16 PN 6 PN 16 PN 6 PN 16

24-224-8

11

11

11/211/2

169181

5875

98106

204216

180180

Screw-ended pumps

34-234-8

11

1 1/41 1/4

22

169181

5875

98106

204216

180180

44-844-18

22

4040

--

173226

65106

106110

226296

250320

130130

150150

8080

8888

100100

110110

1414

1818

44

44

54-1854-3054-100

222

505050

---

210258286

88115165

110127146

272327391

280340440

140140-

165165165

9090

-

102102102

110110-

125125125

1414-

181818

44-

444

64-3064-4864-160

222

656565

---

265265353

128128175

127127148

342342462

340340475

160160-

185185185

110110

-

122122122

130130-

145145145

1414-

181818

44-

444

84-4884-7584-250

222

808080

---

269288394

134134185

127140166

357376521

360360500

190190-

200200200

128128

-

138138138

150150-

160160160

1818-

181818

44-

888

104-110104-250

22

100100

--

288426

143194

140166

391566

395550

210-

220220

148-

158158

170-

180180

18-

1818

4-

88

Riovar

11

Outline Drawing Riovar Z

Flange dimensions PN 6, DIN 2531PN 16, DIN 2533

Dimension Table

ISO 7/ID g k i z

Riovar Rp/DN a b1 b2 c h PN 6 PN 16 PN 6 PN 16 PN 6 PN 16 PN 6 PN 16 PN 6 PN 16

Z 44-8Z 44-18

4040

176226

146217

152210

244306

250320

130130

150150

8080

8888

100100

110110

1414

1818

44

44

Z 54-18Z 54-30

5050

209258

157217

168226

279343

280340

140140

165165

9090

102102

110110

125125

1414

1818

44

44

Z 64-30Z 64-48

6565

265265

222222

239239

370370

340340

160160

185185

110110

122122

130130

145145

1414

1818

44

44

Z 84-48Z 84-75

8080

269269

232232

252252

384384

360360

190190

200200

128128

138138

150150

160160

1818

1818

44

88

Z 104-110 100 280 250 274 395 395 210 220 148 158 170 180 18 18 4 8

Outline Drawing Riovar with Y-pipe Dimension Table

Flange dimensions of Y-pipes PN 16, DIN 2533

1) On these Riovar sizes, the casing diameter is so large that the motorcannot be arranged towards the front. Therefore the pumps have tobe moved 90o to the outside so that the motors point to the left andthe right. Dimension ”F” includes this arrangement.

Riovar withY-pipe

DN A B F L

44-844-18

4040

275275

190190

446485

630700

54-1854-3054-100 1)

505050

300300300

210210210

498542872

700760860

64-3064-4864-160 1)

656565

325325325

230230230

580580

1031

800800935

84-4884-7584-250 1)

808080

350350350

260260260

611624

1138

880880

1020

104-110104-250 1)

100100

325325

295295

6081177

9851140

44-8

E

24/3

4-2

D

24/3

4-8

D

44-8

D

44-1

8 D

54-1

8 D

54-3

0 D

54-1

00 D

64-3

0 D

64-4

8 D

64-1

60 D

84-4

8 D

84-7

5 D

84-2

50 D

104-

110

D

Z 4

4-8

E

Z 4

4-18

D

Z 5

4-18

D

Z 5

4-30

D

Z 6

4-30

D

Z 6

4-48

D

Z 8

4-48

D

Z 8

4-75

D

Z 1

04-1

10 D

104-

250

D

Z 4

4-8

D

Zubehör siehe Seite 79

Riovar

12

Riovar (Z) Pump Variants n = 1400 1/min

Single Pumps Twin Pumps

X standard programme 3)

S special design

Pipe connectionswith set of screw unions Rp 1 or Rp 1 1/4 X X

Flange PN 6 /DIN 2531 Press. gauge connect. Rp 1/8 X X X X X X X X X X X X X X X X X X X X

Flange PN 16 /DIN 2533 Press. gauge connect. Rp 1/8 X X X X X X X X X X X X X X X X X X X X X X X X

Max. permissible operating pressure p6 bar X X X X X X X X X X X X X X X X X X X X

10 bar X X X X X X X X X X X X X X X X X X X X X X X X X X

16 bar (casing GG-20) S S S S S S S

Pump casing materialsCast iron GG-20/25 X X X X X X X X X X X X X X X X X X X X X X X X X X

Nodular cast iron GGG-40.3 (flanges PN 16; p = 16 bar) S S S S S S S S S S S S S S S S S

Perm. temp. ranges of medium handled (water)+20 oC to +130 oC X X X X X X X X X X X X X X X X X X X X X X X X X X

Connection to following types of power supply1~230 V, 50 Hz (special a. c. current motor) X X

3~400 V, 50 Hz X X X X X X X X X X X X X X X X X X X X X X X X

3~230 V, 3~415 V, 3~500 V, 50 Hz S S S S S S S S S S S S S S S S S S S S S S S S S

3~220 V, 3~380 V, 3~440 V, 60 Hz S S S S S S S S S S S S S S S S S S S S S S S S S

Motor protectionNot required X

Integrated full motor protection 4) X X X X X X X X X X X X X X X X X X X X X X X X X

Speed variationManual 4-level control X X X X X X X X X X X X X X X X X X X X X X X X X X

Automatic 1)time-dependent on/off X

time-dependent 2-level control X X X X X X X X X X X X X X X X

load-dependent 2-level control X X X X X X X X X X X X X X X X

load-dependent 4-level control X X X X X X X X X X X X X X X X X X X X X X X X

load-dependent infinitely variable speed adjustment X X X X X X X X X X X X S X S X X X X X X X X X X

time-dependent alternate operation control 2) X X X X X X X X X X

load-dependent alternate operation control 2) X X X X X X X X X X

Switch plug C C E C C C C C C C C C C C C C E C C C C C C C C C

1) See table of switchgears, pages 13 and 14.2) Speed change-over nmax/nmin can be set, if one pump was pre-set

to nmax and the other to nmin by hand.3) Gaskets are included in the scope of supply. For union ends and

union nuts, see Pump Accessories.4) Integrated circuit breakers in connection with Riovar switchgears

(see Accessories).

Switch plug variantsE C

Riovar

13

Riovar Switchgears

Switchgears for Riovar single pumps Riovar Z twin pumps

Switchgears DV DVP MDV EUV 2-G DUV 2-G DDV 4 DTV 4 DUV 2-ZG DDV 4-Z DTV 4-Z

RiovarSwitchplug E C C C C C

24/34-2 D C X X X

24/34-8 D C X X X X X X

44-8 E E X X X

44-8 D C X X X X X X

44-18 D C X X X X X X

54-18 D C X X X X X X

54-30 D C X X X X X X

54-100 D C X X X X X X

64-30 D C X X X X X X

64-48 D C X X X X X X

64-160 D C X X X X X

84-48 D C X X X X X X

84-75 D C X X X X X X

84-250 D C X X X X X

104-110 D C X X X X X X

104-250 D C X X X X X

Z 44-8 E E X X X

Z 44-8 D C X X X X X

Z 44-18 D C X X X X X

Z 54-18 D C X X X X X

Z 54-30 D C X X X X X

Z 64-30 D C X X X X X

Z 64-48 D C X X X X X

Z 84-48 D C X X X X X

Z 84-75 D C X X X X X

Z 104-110 D C X X X X X

Technical Data of Riovar Switchgears

Riovar

14

Riovar

15

Accessories for Twin Pumps

UnionPipe end Pump end Ident. No. ~kg

Y-pipes for twin pumps *) suction sidePN 10 / 16 discharge side

suction sidedischarge sidesuction sidedischarge sidesuction sidedischarge sidesuction sidedischarge side

DN 40DN 40DN 50DN 50DN 65DN 65DN 80DN 80

DN 100DN 100

DN 40DN 40DN 50DN 50DN 65DN 65DN 80DN 80

DN 100DN 100

40 000 688 L40 000 679 L40 000 689 L40 000 680 L40 000 690 L40 000 681 L48 936 065 L48 936 202 L40 000 692 L40 000 440 L

12.013.015.017.019.020.025.028.033.035.0

Wafer-type non-return valvePN 6 - 16

DN 40DN 50DN 65DN 80

DN 100

DN 40DN 50DN 65DN 80

DN 100

48 860 616 L48 860 617 L48 860 618 L48 860 619 L48 860 620 L

0.61.01.32.02.8

*) Scope of supply: bolts, nuts, gaskets and integrated changeover flap (on discharge side only)

Screw Union Sets and Union Ends

UnionPipe end Pump end Ident. No. ~kg

Screw union sets **)with internal thread malleable cast ironwith internal thread malleable cast iron

Rp 1Rp 1 1/4

G 1 1/2G 2

40 980 836 L40 980 837 L

0.20.2

**) Scope of supply: two union nuts, union ends and gaskets each

L = available ex stock

1

1

Riovar

16

Electrical Accessories

RiovarLength x height x depth

mm 1~ 3~ ~kg

Riovar switchgear DV 84 x 130 x 66for full motor protection release and manual start-up/shut-down.

Required for motor sizes ..-8 E/D and above,unless switchgears type EUV 2-G or DUV 2-(Z)G or DDV 4-(Z) or DTV 4-(Z) are used.

X X 00 521 822 0.35

Riovar switchgear DVP 84 x 130 x 66Switchgear as above, but with volt-free contacts for operation and fault message.

X X 01 018 335 0.35

Riovar swichgear MDVfor full motor protection release

Plug-in module, suitable for Riovar with three-phase current motor with thermal contact terminal,for motor sizes 8 D to 130 D.

X 01 018 336

Temperature sensor ET 2, 45 x 100 x 58signal transmitter for temperature-dependent change-over with switchgears EUV 2-G, DUV 2-G, DUV 2-ZG or MS.

X X 00 521 825 0.4

Riovar switchgear EUV 2-G 206 x 146 x 74with integrated full motor protection release, for automatic change-over between maximum and minimum speedby a timer with daily program.By day speed changing may, in addition, also be effectedload-dependent by means of an external transmitter: dependingon the feed temperature with temperature sensor ET 2.With 3 m pump connection cable with special plug variant E.

X 01 018 337 1.5

Riovar switchgear DUV 2-G 225 x 260 x 70with integrated full motor protection release, for automaticchange-over between maximum and minimum speed by timerwith daily program, e. g. for reduction to lower speed at night.With 3 m pump connection cable with special plug variant C.By day speed changing may, in addition, also be effectedload-dependent by means of external transmitters:- depending on feed temperature by means of temperature

sensor ET 2 - depending on differential pressure by means of differential

pressure contact gauge DK.

X 00 103 994 1.5

Riovar switchgear DDV 4 225 x 260 x 70with integrated full motor protection release.Change-over between 4 speeds depending on differentialpressure. Exact energy-saving adjustment to varyingrequirements. Overruling timer effects reduction to speed atnight.With 3 m pump connection cable with special plug variant C.Always required:differential pressure contact gauge DK.

X 00 103 995 3.2

Riovar switchgear DTV 4 225 x 260 x 70with integrated full motor protection release.Change-over between 4 speeds depending on temperature or differential temperature. Exact energy-savingadjustment to varying requirements. Overruling timer effects reduction to speed at night.With 3 m pump connection cable with special plug variant C, with 2 clip-on sensors as signal transmitters(temperature-dependent control requires only 1 transmitter), with 5 m cable each,with 2 strap retainers for fixing to pipes up to DN 100.

X 01 018 338 3.2

4

1 4

1

4

1 4

1

Riovar

17

Electrical Accessories

RiovarLength x height x depth

mm 1~ 3~ ~kg

Riovar switchgear DUV 2-ZG 225 x 260 x 70with integrated full motor protection release.For time-dependent change-over from pump I to pump II or from pump I to pumps I + II (parallel operation). Manual preselection of different speeds for pump I(min./reduction at night) and pump II (max./operation by day)allows low speed by night and high speed by day. In addition, change-over from pump I to pump II or from pump I to pump I + II by day can also be effected load-dependent by means of external transmitters:- depending on feed temperature by means of temperature

sensor ET 2 - depending on differential pressure by means of differential

pressure contact gauge DK.The possibility of operating pump I and II in parallel in the case ofpeak heat consumption allows selection of a low-cost twin pumpfor medium heat consumption.

X X 00 103 996 2.2

Riovar switchgear DDV 4-Z 2 times 225 x 260 x 70Time-dependent change-over from pump I to pump II andchange-over between 4 speeds of on-duty pump depending ondifferential pressure. Alternatively pump I and II can be operated in parallel, with one pump working at speed level ,while the other one is started up from speed levels throughdepending on the differential pressure (parallel operation).Integrated full motor protection release.Exact energy-saving adjustment to varying requirements.Overruling timer effects reduction to speed at night.With 2 x 3 m pump connection cable with special plug variant C. Always required:differential pressure contact gauge DK.

X 00 103 997 6.2

Riovar switchgear DTV 4-Z 2 times 225 x 260 x 70Time-dependent change-over from pump I to pump II andchange-over between 4 speeds of on-duty pump depending ontemperature or differential temperature.Alternatively pump I and II can be operated in parallel, withone pump working at speed level , while the other one isstarted up from speed levels through depending on thetemperature or differential temperature (parallel operation).Integrated full motor protection release.Exact energy-saving adjustment to varying requirements.Overruling timer effects reduction to speed at night.With 2 x 3 m pump connection cable with special plug variant C,with 2 clip-on sensors as signal transmitters with 5 m cable each(temperature-dependent control requires only 1 transmitter),with 2 strap retainers for fixing to pipes up to DN 100.

X 01 018 339 6.2

Riovar

18

Electrical Accessories

Riovarmm 1~ 3~ ~kg

Differential pressure contact gauge DK ø132 x 101 X Xfor change-over between 2 or 4 speeds (as required by Riovar switchgear) depending on thedifferential pressure.5 m connection cable

Effective range 0 to 0.6 bar DK 6

Effective range 0 to 1.0 bar DK 10

Effective range 0 to 1.6 bar DK 16

24-2/-834-2/-844-854-1864-3084-48

44-1854-3064-4884-75104-110

54-10064-16084-250104-250

00 521 838

00 521 839

00 521 840

1.8

1.8

1.8

Riovar

19

1111

.5-1

0 /

1.6

.200

3S

ubje

ct to

tech

nica

l mod

ifica

tions

with

out p

rior

notic

e.

Riovar