ydp

AIR COOLED DIESEL PUMPS

Printed in Japan

001A0-G00440 0810H

1-32, Chayamachi, Kita-ku, Osaka 530 -8311, JapanTelephone :+81-6-6376- 6411 Facsimile :+81-6-6377-1243www.yanmar.co.jp

Note : All data su bject to alterat io n without not ice.

Model

YDP20NYDP30NYDP40NYDP20STNYDP30STNYDP40STNYDP20TNYDP30TNYDP40TNYDP20DNYDP30DN

Construction

Packing Measurement

Width: mm (in.)

405 (15.94)

405 (15.94)

465 (18.31)

475 (18.70)

475 (18.70)

560 (22.05)

480 (18.90)

525 (20.67)

525 (20.67)

460 (18.11)

490 (19.29)

Volume

m3 (ft3)

0.1330 (4.69)

0.1330 (4.69)

0.2348 (8.28)

0.1424 (5.02)

0.1424 (5.02)

0.2537 (8.95)

0.1964 (6.93)

0.3194 (11.26)

0.3471 (12.25)

0.2399 (8.46)

0.2555 (9.01)

Net

40 (88)

42 (93)

59 (130)

39 (86)

40 (88)

56 (123)

56 (123)

72 (157)

109 (240)

53 (117)

60 (132)

Gross

44 (97)

46 (101)

63 (139)

43 (95)

44 (97)

60 (132)

60 (132)

76.5 (169)

113.5 (250)

56 (123)

64 (141)

Weight: kg(lbs) Q'ty/20ft

Container

168

168

96

192

192

96

126

70

68

120

108

Length: mm (in.)

540 (21.26)

540 (21.26)

660 (25.98)

555 (21.85)

555 (21.85)

708 (27.87)

620 (24.17)

720 (28.35)

760 (29.92)

700 (27.56)

700 (27.56)

Heigth: mm (in.)

608 (23.94)

608 (23.94)

765 (30.12)

540 (21.26)

540 (21.26)

640 (25.20)

660 (25.98)

845 (33.27)

870 (34.25)

745 (29.33)

745 (29.33)

Pump Type ��

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〇〇〇〇Strainer (slot-in type)

〇〇〇 —Hose coupling set

〇〇〇 —Hose band

— * — —Battery box

— — — —Battery cable

〇〇〇〇Tools

*YDP40STN and YDP40TN with Electric Start only. The Battery and cable types differ depending on sales area.

Impeller Impeller Impeller Rubber

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Ma

teri

al

( Pri

nc

ipa

l p

art

s)

Mechanical seal

Inner casing

Impeller

Casing cover

Pump casing

Liner

Carbon ceramic

Cast iron (FC15)

Cast iron (FC15)

Aluminum diecast (ADC12)


—

StrainerUnit=in.

Openingdiameter

φ6φ7

Pumpsize

1.5, 2.03.0, 4.0

Sic ceramic

Cast iron (FC20)

Cast iron (FC20)



—

Sic ceramic

Cast iron (FC30)

Cast iron (24 high chrome)

Aluminum cast (AC2A)

Aluminum cast (AC2A)

Stainless steel (SUS430)

—

—

— (Diaphragm rubber)

2´́AC2A /3´́ADC12

2´́AC2A /3´́ADC12

—

Openingdiameter

φ20

Pumpsize

2.0, 3.04.0

Openingdiameter

φ20φ31

Pumpsize

2.0, 3.04.0

Openingdiameter

φ25φ31

Pumpsize

2.03.0

PumpSeries

Water

Semi-trash

Trash

Diaphragm

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〇 —Wheel set

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Hose couplinghandle

Packing

Hose coupling

■ AIR COOLED DIESEL PUMPS YDP series / A4.4P / 4c39028-[1-2] 08.11.26 2:43 AM ページ 1

BA

C

BA

C

BA

C

BA

C

Fresh water pumpYDP30N

Self- prim ing pum p

4-stroke, air cooled diesel engine

L48NE L70NE

80

28

900

3.1/3600

3.5/3600

219

4.4/3600

4.9/3600

320

5.5

Recoil

YDP40N

100

26.5

1300

YDP20N

50

32

550

42 5940

530×435×637 630×435×727

Diaphragm pumpYDP30DN

Com pression pump

※Elect ric start available as option.


L48NE

80

320

3.1/3600

3.5/3600

219

5.5

Recoil

YDP20DN

50

15

190

6053

7

660×450×695660×420×695

Type

Model

Semi-trash pumpYDP30STN

Self-priming pump


L48NE L70NE

80

23

850

4.4/3600

4.9/3600

320

3.3

3.1/3600

3.5/3600

219

2.4

Recoil ※Recoil

YDP40STN

100

25 24

1300

YDP20STN

50

22.5

550

40 5639

7

515×430×490 678×530×600

Trash pumpYDP30TN

Self-priming pump


L70NEL48NE L100NE

80

27 25

1150

6.6/3600

7.4/3600

435

※Recoil

4.4/3600

4.9/3600

320

12.5

Recoil

3.1/3600

3.5/3600

219

5.5

YDP40TN

100

1750

YDP20TN

50

550

72 10956

7

580×435×620 680×484×715 718×484×740

Type

PU

MP

UN

ITE

NG

INE

Suc. & discharge dia.

Max. total head

Suctio n l ift

Max. capacity

Model

Type

Disp lacem ent

Max. output

Cont. output

Starti ng system

Fuel oil tank capacity

Dry weight

Dim ensions L×W×H

A wide optionYanmar’s pump series range in bore size from 2 " to 4 " for fresh water, semi-t rash, t rash, and diaphragm models. The series can handle all types of water, from fresh to muddy sludge.

Long running, fuel-thrifty dieselsFuel-eff icient diesel pumps can be operated 1.5-4 t imes longer than gasol ine pumps. This advant age t ruly shows in night t ime and other cont inuous pumping operat ion at sites where no commercial power is ava i la ble.

Durable constructionThe principal parts of each pump are reinforced for superior wear resistance. The t rash pumps are further strengthened by adding l iners to the inner casings.

Easy maintenanceCleaning the inside of the casing can be done simply by just removing a few bolts. With trash pumps, the casing cover and the inner casing come in one block, so separation and fitting is very easy.

● Light weight and compact design

● Easy maintenance : just remove the four bolts to clean the inside of

　the casing.

● Meets a wide range of applications cou pled with air-cooled diesel

　engines.

Uses: Agriculture and home

● Higher performance over standard fresh water pumps, unique to Yanmar.

● Handles gravel and trash below φ20mm.

● Easy maintenance : just remove the four bolts to clean the inside of

　the casing.

● Sic ceramic machanical seal can be used semi- permanently.

Uses: Agriculture, home, civil engineering, fishing

● Handles water with φ20-31mm g ravel.

● Liner improves wear- resistance of the inner casing.

● Sic ceramic mechanical seal can be used semi-permanently.

● High chrome impeller with high durability.

● Pump can be cleaned easily by loosening the two grip bolts.

Uses: Civil engineering, rental

● Handles highly viscous f luid that centrifugal pumps can't pump.

● Capable of pumping water containing

　φ25-31mm gravel and sludge.

● The reciprocation of the diaphragm efficiently transfers the fluid.

Uses: Civil engineering, cattle disposal treatment, aqua- culture

A I R- COOLED DIESEL ENG IN E L-N SERIES

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The fuel inject ion system, the heart of a diesel, has been refined through yea rs of research and development at Yanmar. We have succeeded in minimiz ing the weight and size of this equ ipment and simpl ify ing its st ructu re by adopt ion of a bushless pump and a smaller nozzle.

● Durable — because it is built by a specialist 　 in large diesel technology.● Convenient Recoil starter— a feature commonly 　 associated with gasoline engines.● Fuel costs dip to a new low with 　 Yanmar’s direct fuel injection 　 system.● Very low vibration and quiet 　 running make it ideal, a popular 　 choice for constantly operating 　 machinery.

F RESH WATER PUMP

FRESH WATER PUMP SEMI-TRASH PUMP TRASH PUMP DIAPHRAGM PUMP

SEMI-T RASH PUMP T RASH PUMP DIAPHRAGM PUMP

● Long operation　 with large capacity 　 fuel oil tank

● Low noise with 　 large capacity 　 exhaust muffler

● Easy starting with 　 recoil starter

● Low vibration with 　 rubber mount

No. of bolts

Bolt type

Tool

Fresh water pump

Hexagon bolt

Common with engine

YDP20N, 30N

8

YDP40N

4

Semi-trash pump

4

Hexagon

hole bolt

Standard

accessory

( hexagon wrench)

Trash pump

2

Handle knob

-

SPECIFICATIONS

�� !�"�# $��#��# Unit:mm

YDP20N YDP30N YDP40N YDP20STN YDP30STN YDP40STN YDP20TN YDP30TN YDP40TN YDP20DN YDP30DN

�� !�"�# $��#��# Unit:mm�� !�"�# $��#��# Unit:mm�� !�"�# $��#��# Unit:mm

YDP20DNYDP30DN

A420450

B660660

C695695

YDP20TNYDP30TNYDP40TN

A435484484

B580680718

C620715740

YDP20STNYDP30STNYDP40STN

A430430530

B515515678

C490490600

YDP20NYDP30NYDP40N

A435435435

B530530630

C637637727

mm

m

m

lit./m in.

cc

kw/m in-1（rpm）

kw/m in-1（rpm）

lit.

mm

kg

30

20

10

0 500 1000

Discharge capacity (lit . /min.)

Tota

l h

ea

d (

m)

1500 2000

YD

P20TNYDP30TN

YDP40TN

30

40

20

10

0 500 1000


Tota

l h

ea

d (

m)

1500

YDP40STNYDP20STN

YDP30STN

20

15

10

5

0 100 200


Tota

l h

ea

d (

m)

400300

YDP30DNYDP20DN

30

40

20

10

0 500 1000


Tota

l h

ea

d (

m)

1500

YDP40NYDP30N

YD

P20N

7

■ AIR COOLED DIESEL PUMPS YDP series / A4.4P / 4c39028-[1-2] 08.11.26 2:43 AM ページ 2

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