L Series web 0216 - Rapid Allweiler Series.pdfVersion 1 - L Series: Rapid Allweiler Pumps Whilst all...

L SERIESHIGH-PRESSURE MULTI-STAGE CENTRIFUGAL PUMPS

Version 1 - L Series: Rapid Allweiler PumpsWhilst all care has been taken to ensure the accuracy of the information contained in this brochure was correct at the time of printing, please be advised we cannot be held responsible for any errors contained within and or changes that may have taken place. Dimensions contained within are for reference purpose only and should not be used for construction; certified drawings are available upon request. For confirmation of any information contained herewith please contact a member of our technical sales team.

DEEP APPLICATION KNOWLEDGE

TAILOR MADE PUMPING SOLUTIONS

STATE OF THE ART TRAINING CENTRE

LEADING PROVIDER OF TOP QUALITY PRODUCTS

LOCAL MANUFACTURE

FOUNDED IN 1932

OWN FOUNDRY

ACCREDITED PUMP REPAIR/SERVICE WORKSHOP

ISO 9001:2008

BEE ACCREDITED

AFTER MARKET SERVICE

WE HAVE ALL THE TICKS

FOUNDER A J HINDRY

RAPID ALLWEILER PUMPS HEAD OFFICE

OWN WORKSHOP

OWN FOUNDRY

DESIGN & CONSTRUCTION • Horizontal multistage centrifugal pump fitted with ring sections that are sealed with O-rings and external casing Tie-bolts.

• Grease lubricated grooved ball bearings are arranged (outboard) on each side of the bearing housing to absorb any residual forces.

• The suction flange is horizontal and the discharge is vertical, both are cast with feet allowing any forces to be delivered direct to the baseplate and foundation.

• The shaft is sealed by an uncooled stuffing boxes with packing rings as standard though may be fitted with mechanical seal as an alternative.

• Replaceable shaft sleeves are fitted. Flanges• Suction PN16/DIN 2533, Delivery PN40/DIN 2535.

MATERIALS OF CONSTRUCTIONCasing: Cast Iron GG20Impeller: Cast Iron or Stainless Steel or BronzeShaft: Carbon Steel or Stainless SteelDiffusers: Cast Iron or BronzeSealing: Packed Gland or Mechanical Seal Arrangements.

MODEL DESCRIPTIONL 50/7 CCP

Method of sealing Impeller material Casing material No. of stages Nominal Discharge size in mmPump type multistage

RA Pump Range

L-Series

Minimum Flow (m3/h)

3

Maximum Flow (m3/h)

120

Minimum Head (m)

6

Maximum Head (m)

260

Maximum Temperature

160˚C

Suction Pressure

Up to 10 bar

Internal Pressure

Up to 25 bar

Speed

Up to 3500rpm


APPLICATION Water Supply and Irrigation Boiler Feed Booster Pumps Cooling and Heating Systems Fire Fighting General Industrial Applications

1

SECTIONAL DRAWING & PARTS LIST


Suction Casing 507Delivery Casing 524Stage Casings 525Diffusers 531Shaft 551Impellers 554Ball Bearings 562Bearng Housing (DE) 703.1Bearing Housing (NDE) 350.2Bearing Covers 703.2Gaskets (Seal Housing) 731.1Plug Washers (See Note 1) 731.2Plug Washers 731.3O-rings (Casings) 901O-rings (Shaft Sleeves) 902Mechanical Seals 903.1/2Glands 903.3Lantern Ring (See Note 2) 904.1Packing Rings 905Seal Housing (LH Flush DE) 914.1/2Seal Housing (RH Flush NDE) 920.1/3Mechanical Seal Collars 932.1Flinger Rings 932.3Protective Shaft Sleeves 940.1

Spacer Sleeves 525Dowel Pins 531Support Washers 551Washers (Tie Bolts) 554Roller Pin 562Pipe (Stuffing Box Pressure Relief) 703.1Pipe (See Note 3) 703.2Pipe Unions 731.1Pipe Unions (See Note 1) 731.2Pipe Unions (See Note 3) 731.3Stud (Seal Housing) 901Studs (Gland) 902Screwed Plugs 903.1/2Screwed Plug (See Note 1) 903.3Grubscrew (See Note 4) 904.1Tie Bolts 905Socket-head Cap Screws 914.1/2Hexagonal Nuts 920.1/3Circlip (Sleeve) 932.1Circlip (Shaft) 932.3Key (Coupling) 940.1Key (Impeller) 940.2Key (Shaft Sleeve) 940.3Wave Washer 950.1

Notes1. Size 25 only.2. Size 50 and 65 only, if suction pressure is less than 5 bar gauge.3. Mechanical seal balance line.4. Used for all sizes where supply pressure is greater than 5 bar gauge.

2


DIMENSIONS

FF Fluid to be pumped, fillingFD1 Fluid to be pumped, draining (suction casing)FD2 Fluid to be pumped, draining (delivery casing)LO1 Leakage outlet (suction side)

LO2 Leakage outlet (delivery side)PM1 Pressure measurement (suction side)PM2 Pressure measurement (delivery side)V1 Venting (pump)

3

TOMBSTONE CURVES


1 2 3 4 5 10 20 30 40 50 60 80 1005

6

8

10

20

30

[m]

H

60

80

100

200

250

FLOW RATE [m3/h]

1 2 4

FLOW RATE [m3/h]

10 20 30 40 60 80 100 15025

30

40

60

80

100

200

300

L 25 / 2-10 stages

L 32 / 2-9 stages

L 40 / 2-7 stages

L 65 / 2-5 stages

L 50 / 2-5 stages

[m]

H

HE

AD

HE

AD

L 25 / 2-15 stages

L 32 / 2-15 stages

L 40 / 2-13 stages

L 50 / 2-12 stages

L 65 / 2-11 stages

1450 rpm

2900 rpm

Pg. no.

L25/2-15 5 7 L32/2-15 5 8 L40/2-13 6 8 L50/2-12 6 L65/2-11 7 9

Size*

Pg. no.

L25/2-15 9 12 L32/2-15 10 12 L40/2-13 10 13 L50/2-12 11 L65/2-11 11

Size*

4


MUL

TI-S

TAG

EL3

2D

isch

arge

Dia

met

er

32

mm

Suct

ion

Dia

met

er

40

mm

Max

imum

Sta

ge2

-15

Sta

ges

1450

rpm

Bas

ed o

n w

ater

den

sity

100

0 kg

/m3

and

visc

osity

1 c

St.

Hea

d, c

apac

ity a

nd e

ffic

ienc

y ac

cord

ing

to I

SO

Sta

ndar

d 25

48

CHAR

ACTE

RIS

TIC

CUR

VE

30%

40%

40%

45%

45%

50%

50%

55%

55%

01

23

45

67

89

1011

1213

1415

Q (m

3/h

r)

HEAD (m)

2345678

P (kW)

0.0

0.1

0.2

0.3

0.4

NPSH (m)

0246810

115

115

115

130

130

130

140

140

140

57.0

%

DU

TY P

ER S

TAG

E

Safe

ty m

argi

n of

0,5

m n

eces

sary

35%

35%

40%

40%

45%

45%

50%

50%

52%

52%

55%

55%

01

23

45

67

89

1011

12Q

(m3/h

r)

HEAD (m)

1234567

P (kW)

0.00

0.05

0.10

0.15

0.20

0.25

NPSH (m)

0246

110

110

110

115

115

120

120

120

125

130

130

130

56.0

%

Safe

ty m

argi

n of

0,5

m n

eces

sary

DU

TY P

ER S

TAG

E

MUL

TI-S

TAG

EL2

5D

isch

arge

Dia

met

er

25

mm

Suct

ion

Dia

met

er

25

mm

Max

imum

Sta

ge2

-15

Sta

ges

1450

rpm

Bas

ed o

n w

ater

den

sity

100

0 kg

/m3

and

visc

osity

1 c

St.

Hea

d, c

apac

ity a

nd e

ffic

ienc

y ac

cord

ing

to I

SO

Sta

ndar

d 25

48

CHAR

ACTE

RIS

TIC

CUR

VE

5

Notes1. Size 25 only.2. Size 50 and 65 only, if suction pressure is less than 5 bar gauge.3. Mechanical seal balance line.4. Used for all sizes where supply pressure is greater than 5 bar gauge.


MUL

TI-S

TAG

EL4

0D

isch

arge

Dia

met

er

50

mm

Suct

ion

Dia

met

er

65

mm

Max

imum

Sta

ge2

-12

Sta

ges

1450

rpm

Bas

ed o

n w

ater

den

sity

100

0 kg

/m3

and

visc

osity

1 c

St.

Hea

d, c

apac

ity a

nd e

ffic

ienc

y ac

cord

ing

to I

SO

Sta

ndar

d 25

48

CHAR

ACTE

RIS

TIC

CUR

VE

30%

30%

40%

40%

50%

50%

55%

55%

60%

60%

65%

65%

65%

65%

05

1015

2025

3035

Q (m

3/h

r)

HEAD (m)

012345678910

P (kW)

0.0

0.2

0.4

0.6

0.8

NPSH (m)

02468

120

120

120

135

135

135

145

145

145

155

155

155

68.1

%

Safe

ty m

argi

n of

0,5

m n

eces

sary

MUL

TI-S

TAG

EL5

0D

isch

arge

Dia

met

er

40

mm

Suct

ion

Dia

met

er

50

mm

Max

imum

Sta

ge2

-13

Sta

ges

1450

rpm

Bas

ed o

n w

ater

den

sity

100

0 kg

/m3

and

visc

osity

1 c

St.

Hea

d, c

apac

ity a

nd e

ffic

ienc

y ac

cord

ing

to I

SO

Sta

ndar

d 25

48

CHAR

ACTE

RIS

TIC

CUR

VE

30%

30%

40%

40%

48%

48%

53%

53%

57%

57%

60%

60%

010

2030

4050

Q (m

3/h

r)

HEAD (m)

024681012

P (kW)

0.0

0.4

0.8

1.2

1.6

NPSH (m)

0246810

145

145

145

155

155

155

165

165

175

175

175

61.3

%

Safe

ty m

argi

n of

0,5

m n

eces

sary

6


MUL

TI-S

TAG

EL6

5

Dis

char

ge D

iam

eter

6

5m

mSu

ctio

n D

iam

eter

8

0m

mM

axim

um S

tage

2-1

1 S

tag

es

1450

rpm

Bas

ed o

n w

ater

den

sity

100

0 kg

/m3

and

visc

osity

1 c

St.

Hea

d, c

apac

ity a

nd e

ffic

ienc

y ac

cord

ing

to I

SO

Sta

ndar

d 25

48

CHAR

ACTE

RIS

TIC

CUR

VE

30%

40%

40%

50%

50%

60%

60%

65%

65%

68%

68%

010

2030

4050

6070

80Q

(m3/h

r)

HEAD (m)

051015

P (kW)

0.0

0.5

1.0

1.5

2.0

2.5

NPSH (m)

012345

170

170

180

180

190

190

200

200

200

68.5

%

Safe

ty m

argi

n of

0,5

m n

eces

sary

MUL

TI-S

TAG

EL2

5D

isch

arge

Dia

met

er

25

mm

Suct

ion

Dia

met

er

32

mm

Max

imum

Sta

ge2

-15

Sta

ges

1750

rpm

Bas

ed o

n w

ater

den

sity

100

0 kg

/m3

and

visc

osity

1 c

St.

Hea

d, c

apac

ity a

nd e

ffic

ienc

y ac

cord

ing

to I

SO

Sta

ndar

d 25

48

CHAR

ACTE

RIS

TIC

CUR

VE

35%

35%

40%

40%

45%

45%

50%

50%

52%

52%

55%

55%

02

46

810

1214

Q (m

3/h

r)

HEAD (m)

2345678910

P (kW)

0.0

0.1

0.2

0.3

0.4

NPSH (m)

0246

110

110

110

115

115

120

120

120

125

130

130

130

56.0

%

Safe

ty m

argi

n of

0,5

m n

eces

sary

7


MUL

TI-S

TAG

EL3

2 D

isch

arge

Dia

met

er

32

mm

Suct

ion

Dia

met

er

40

mm

Max

imum

Sta

ge2

-15

Sta

ges

1750

rpm

Bas

ed o

n w

ater

den

sity

100

0 kg

/m3

and

visc

osity

1 c

St.

Hea

d, c

apac

ity a

nd e

ffic

ienc

y ac

cord

ing

to I

SO

Sta

ndar

d 25

48

CHAR

ACTE

RIS

TIC

CUR

VE

30%

40%

45%

45%

50%

50%

55%

55%

02

46

810

1214

1618

Q (m

3/h

r)

HEAD (m)

1234567891011

P (kW)

0.00

0.20

0.40

0.60

NPSH (m)

0246810

115

115

115

130

130

130

140

140

140

57.8

%

Safe

ty m

argi

n of

0,5

m n

eces

sary

MUL

TI-S

TAG

EL4

0D

isch

arge

Dia

met

er

40

mm

Suct

ion

Dia

met

er

50

mm

Max

imum

Sta

ge2

-13

Sta

ges

1750

rpm

Bas

ed o

n w

ater

den

sity

100

0 kg

/m3

and

visc

osity

1 c

St.

Hea

d, c

apac

ity a

nd e

ffic

ienc

y ac

cord

ing

to I

SO

Sta

ndar

d 25

48

CHAR

ACTE

RIS

TIC

CUR

VE

30%

30%

40%

40%

50%

50%

55%

55%

60%

60%

65%

65%

0403

0201

0Q

(m3/h

r)

HEAD (m)

123456789101112131415

P (kW)

0.0

0.4

0.8

1.2

1.6

NPSH (m)

0246810

120

120

120

135

135

135

145

145

145

155

155

155

68.3

%

Safe

ty m

argi

n of

0,5

m n

eces

sary

8


MUL

TI-S

TAG

EL6

5 D

isch

arge

Dia

met

er

65

mm

Suct

ion

Dia

met

er

80

mm

Max

imum

Sta

ge2

-11

Sta

ges

1750

rpm

Bas

ed o

n w

ater

den

sity

100

0 kg

/m3

and

visc

osity

1 c

St.

Hea

d, c

apac

ity a

nd e

ffic

ienc

y ac

cord

ing

to I

SO

Sta

ndar

d 25

48

CHAR

ACTE

RIS

TIC

CUR

VE

30%

40%

40%

50%

50%

60%

60%

65%

65%

68%

68%

010

2030

4050

6070

8090

Q (m

3/h

r)

HEAD (m)

0510152025

P (kW)

012345

NPSH (m)

02468

170

170

180

180

190

190

200

200

200

68.7

%

Safe

ty m

argi

n of

0,5

m n

eces

sary

9

MUL

TI-S

TAG

EL5

0D

isch

arge

Dia

met

er

50

mm

Suct

ion

Dia

met

er

65

mm

Max

imum

Sta

ge2

-12

Sta

ges

1750

rpm

Bas

ed o

n w

ater

den

sity

100

0 kg

/m3

and

visc

osity

1 c

St.

Hea

d, c

apac

ity a

nd e

ffic

ienc

y ac

cord

ing

to I

SO

Sta

ndar

d 25

48

CHAR

ACTE

RIS

TIC

CUR

VE

30%

30%

40%

40%

50%

50%

55%

55%

60%

60%

65%

65%

0403

0201

0Q

(m^3

/hr)

HEAD (m)

123456789101112131415

P (kW)

0.0

0.4

0.8

1.2

1.6

NPSH (m)

0246810

120

120

120

135

135

135

145

145

145

155

155

155

68.3

%

Safe

ty m

argi

n of

0,5

m n

eces

sary


MUL

TI-S

TAG

EL2

5

Dis

char

ge D

iam

eter

2

5m

mSu

ctio

n D

iam

eter

3

2m

mM

axim

um S

tage

2-1

2 S

tag

es

2900

rpm

Bas

ed o

n w

ater

den

sity

100

0 kg

/m3

and

visc

osity

1 c

St.

Hea

d, c

apac

ity a

nd e

ffic

ienc

y ac

cord

ing

to I

SO

Sta

ndar

d 25

48

CHAR

ACTE

RIS

TIC

CUR

VE

35%

40%

45%

50%

50%

53%

53%

55%

55%

57%

57%

02

46

810

1214

1618

20Q

(m3/h

r)

HEAD (m)

101214161820222426

P (kW)

0.0

0.4

0.8

1.2

1.6

NPSH (m)

0246

110

110

110

115

115

120

120

120

125

130

130

130

58.0

%

Safe

ty m

argi

n of

0,5

m n

eces

sary

MUL

TI-S

TAG

EL3

2D

isch

arge

Dia

met

er

32

mm

Suct

ion

Dia

met

er

40

mm

Max

imum

Sta

ge2

-9 S

tag

es

2900

rpm

Bas

ed o

n w

ater

den

sity

100

0 kg

/m3

and

visc

osity

1 c

St.

Hea

d, c

apac

ity a

nd e

ffic

ienc

y ac

cord

ing

to I

SO

Sta

ndar

d 25

48

CHAR

ACTE

RIS

TIC

CUR

VE

30%

40%

50%

50%

55%

55%

58%

58%

05

1015

2025

Q (m

3/h

r)

HEAD (m)

1015202530

P (kW)

0.0

0.5

1.0

1.5

2.0

2.5

NPSH (m)

0246810

115

115

115

130

130

130

140

140

140

59.5

%

Safe

ty m

argi

n of

0,5

m n

eces

sary

10


MUL

TI-S

TAG

EL5

0D

isch

arge

Dia

met

er

50

mm

Suct

ion

Dia

met

er

65

mm

Max

imum

Sta

ge2

-5 S

tag

es

2900

rpm

Bas

ed o

n w

ater

den

sity

100

0 kg

/m3

and

visc

osity

1 c

St.

Hea

d, c

apac

ity a

nd e

ffic

ienc

y ac

cord

ing

to I

SO

Sta

ndar

d 25

48

CHAR

ACTE

RIS

TIC

CUR

VE

30%

40%

45%

50%

50%

55%

55%

60%

60%

65%

65%

010

2030

4050

6070

80Q

(m3/h

r)

HEAD (m)

1020304050

P (kW)

0246810

NPSH (m)

04812

145

145

145

155

155

155

165

165

175

175

175

67.6

%

Safe

ty m

argi

n of

0,5

m n

eces

sary

MUL

TI-S

TAG

EL4

0D

isch

arge

Dia

met

er

40

mm

Suct

ion

Dia

met

er

50

mm

Max

imum

Sta

ge2

-7 S

tag

es

2900

rpm

Bas

ed o

n w

ater

den

sity

100

0 kg

/m3

and

visc

osity

1 c

St.

Hea

d, c

apac

ity a

nd e

ffic

ienc

y ac

cord

ing

to I

SO

Sta

ndar

d 25

48

CHAR

ACTE

RIS

TIC

CUR

VE

30%

40%

50%

55%

55%

60%

60%

65%

65%

65%

65%

010

2030

4050

Q (m

3/h

r)

HEAD (m)

101214161820222426283032343638

P (kW)

0246

NPSH (m)

02468

120

120

120

135

135

135

145

145

145

155

155

155

68.4

%

Safe

ty m

argi

n of

0,5

m n

eces

sary

11


MUL

TI-S

TAG

EL6

5D

isch

arge

Dia

met

er

65

mm

Suct

ion

Dia

met

er

80

mm

Max

imum

Sta

ge2

-5 S

tag

es

2900

rpm

Bas

ed o

n w

ater

den

sity

100

0 kg

/m3

and

visc

osity

1 c

St.

Hea

d, c

apac

ity a

nd e

ffic

ienc

y ac

cord

ing

to I

SO

Sta

ndar

d 25

48

CHAR

ACTE

RIS

TIC

CUR

VE

30%

40%

50%

55%

55%

60%

60%

65%

68%

68%

65%

65%

020

4060

8010

012

014

0Q

(m3/h

r)

HEAD (m)

102030405060

P (kW)

048121620

NPSH (m)

02468

170

170

180

180

190

190

200

200

200

69.2

%

Safe

ty m

argi

n of

0,5

m n

eces

sary

MUL

TI-S

TAG

EL2

5 D

isch

arge

Dia

met

er

25

mm

Suct

ion

Dia

met

er

32

mm

Max

imum

Sta

ge2

-7 S

tag

es

3500

rpm

Bas

ed o

n w

ater

den

sity

100

0 kg

/m3

and

visc

osity

1 c

St.

Hea

d, c

apac

ity a

nd e

ffic

ienc

y ac

cord

ing

to I

SO

Sta

ndar

d 25

48

CHAR

ACTE

RIS

TIC

CUR

VE

35%

40%

45%

45%

50%

50%

53%

53%

55%

55%

05

1015

2025

Q (m

3/h

r)

HEAD (m)

152025303540

P (kW)

0123

NPSH (m)

0246810

110

110

110

115

115

120

120

120

125

130

130

130

58.0

%

Safe

ty m

argi

n of

0,5

m n

eces

sary

12


MUL

TI-S

TAG

EL3

2 D

isch

arge

Dia

met

er

40

mm

Suct

ion

Dia

met

er

40

mm

Max

imum

Sta

ge2

-6 S

tag

es

3500

rpm

Bas

ed o

n w

ater

den

sity

100

0 kg

/m3

and

visc

osity

1 c

St.

Hea

d, c

apac

ity a

nd e

ffic

ienc

y ac

cord

ing

to I

SO

Sta

ndar

d 25

48

CHAR

ACTE

RIS

TIC

CUR

VE

30%

40%

50%

50%

55%

55%

58%

58%

05

1015

2025

30Q

(m3/h

r)

HEAD (m)

15202530354045

P (kW)

01234

NPSH (m)

04812

115

115

115

130

130

130

140

140

140

59.7

%

Safe

ty m

argi

n of

0,5

m n

eces

sary

MUL

TI-S

TAG

EL4

0D

isch

arge

Dia

met

er

40

mm

Suct

ion

Dia

met

er

50

mm

Max

imum

Sta

ge2

-5 S

tag

es

3500

rpm

Bas

ed o

n w

ater

den

sity

100

0 kg

/m3

and

visc

osity

1 c

St.

Hea

d, c

apac

ity a

nd e

ffic

ienc

y ac

cord

ing

to I

SO

Sta

ndar

d 25

48

CHAR

ACTE

RIS

TIC

CUR

VE

30%

40%

50%

55%

55%

60%

60%

65%

65%

65%

010

2030

4050

60Q

(m3/h

r)

HEAD (m)

102030405060

P (kW)

0246810

NPSH (m)

0246810

120

120

120

135

135

135

145

145

145

155

155

155

68.4

%

Safe

ty m

argi

n of

0,5

m n

eces

sary

13

08600 RAPID

10 Girder Street • Isando • 1601T: +27 11 573 7400 • F: +27 11 974 8757

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L Series web 0216 - Rapid Allweiler Series.pdfVersion 1 - L Series: Rapid Allweiler Pumps Whilst all...

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