YDP series

Stunning Durability and High Performance YANMAR Pumping set

Yanmar's pump series range in bore size from 2 “ to 4 “ for fresh water, semi-trash, trash, and diaphragm models. The series can handle all types of water, from fresh to muddy sludge.

Fuel-efficient diesel pumps can be operated 1.5-4 times longer than gasoline pumps. This advantage truly shows in night time and other continuous pumping operation at sites where no commercial power is available.

The principal parts of each pump are reinforced for superior wear resistance. The trash pumps are further strengthened by adding liners to the inner casings.

Cleaning 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.

	Fresh water pump	Semi-trash pump	Trash pump
No. of bolts	4	4	4
Bolt type	Hexagon bolt	Hexagon hole bolt	Hexagon bolt
Tool	Common with engine	Accessory special	Common with engine

PAGETOP

AIR-COOLED DIESEL ENGINE L-A SERIES

Its secret is Yanmar's micro-sized
fuel injection system

The fuel injection system, the heart of a diesel, has been refined through years of researchand evelopment at Yanmar. We have succeeded in minimizing the weight and size of this equipment and simplifying its structure by adoption of a brushless pump and a smaller nozzle.

● Durable-because it 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

PAGETOP

FRESH WATER PUMP

●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 coupled with air-
cooled diesel engines. Uses: Agriculture and home.

SEMI-TRASH PUMP

●Higher performance over standard fresh water pumps,
   unique to Yanmar.
●Handles gravel and trash below Φ 20mm.
●Easy maintenance: just remove the four bolts to clean
   the inside of the casing. Uses: Agriculture, home, civil
   engineering, fishing.

TRASH PUMP

●Handles water with Φ 20-30mm gravel.
●Liner improves wear-resistance of the inner casing.
●Sic ceramic mechanical seal can be used semi-
permanently.
●Pump can be cleaned easily by loosening the two grip
bolts. Uses: Civil engineering, rental.

PAGETOP

SPECIFICATIONS

■FRESH WATER PUMP

Type			Fresh water pump
Model			YDP20N	YDP30N	YDP40N
PUMP	Type		Self-priming pump
	Suc.&discharge dia.	mm	50	80	100
	Max. Total head	m	32	28	26.5
	Suction lift	m	7
	Max. Capacity	lit. /min.	550	900	1300
ENGINE	Model		L48NE		L70NE
	Type		4-stroke, air cooled diesel engine
	Displacement	cc	219		320
	Max. Output	kw/min^-1(rpm)	3.5/3600		4.9/3600
	Cont. Output	kw/min^-1(rpm)	3.1/3600		4.4/3600
	Starting system		Recoil
	Fuel oil tank capacity	lit.	5.5
UNIT	Dimensions LxWxH	mm	530×435×637		630×435×727
	Dry weight	kg	40	42	59

Type			Semi-trash pump
Model			YDP20STN	YDP30STN	YDP40STN
PUMP	Type		Self-priming pump
	Suc.&discharge dia.	mm	50	80	100
	Max. Total head	m	22.5	23	25
	Suction lift	m	7
	Max. Capacity	lit. /min.	550	850	1300
ENGINE	Model		L48NE		L70NE
	Type		4-stroke, air cooled diesel engine
	Displacement	cc	219		320
	Max. Output	kw/min^-1(rpm)	3.5/3600		4.9/3600
	Cont. Output	kw/min^-1(rpm)	3.1/3600		4.4/3600
	Starting system		Recoil		* Recoil
	Fuel oil tank capacity	lit.	2.4		3.3
UNIT	Dimensions LxWxH	mm	515×430×490		678×530×600
	Dry weight	kg	39	40	56

Type			Trash pump
Model			YDP20TN	YDP30TN	YDP40TN
PUMP	Type		Self-priming pump
	Suc.&discharge dia.	mm	50	80	100
	Max. Total head	m	24	27	25
	Suction lift	m	7
	Max. Capacity	lit. /min.	550	1150	1750
ENGINE	Model		L48NE	L70NE	L100NE
	Type		4-stroke, air cooled diesel engine
	Displacement	cc	219	320	435
	Max. Output	kw/min^-1(rpm)	3.5/3600	4.9/3600	7.4/3600
	Cont. Output	kw/min^-1(rpm)	3.1/3600	4.4/3600	6.6/3600
	Starting system		Recoil		* Recoil
	Fuel oil tank capacity	lit.	5.5	12.5
UNIT	Dimensions LxWxH	mm	580x435x620	680x484x715	718×484×740
	Dry weight	kg	56	72	109

Type			Diaphragm pump
Model			YDP20DN	YDP30DN
PUMP	Type		Compression pump
	Suc.&discharge dia.	mm	50	80
	Max. Total head	m	15
	Suction lift	m	7
	Max. Capacity	lit. /min.	190	320
ENGINE	Model		L48NE
	Type		4-stroke, air cooled diesel engine
	Displacement	cc	219
	Max. Output	kw/min^-1(rpm)	3.5/3600
	Cont. Output	kw/min^-1(rpm)	3.1/3600
	Starting system		Recoil
	Fuel oil tank capacity	lit.	5.5
UNIT	Dimensions LxWxH	mm	660x420x695	660x450x695
	Dry weight	kg	53	60

※Elect ric start available as option.
Note : All data subject to alteration without notice .

PAGETOP

PERFORMANCE CURVES

DIMENSION

CATALOG PDF