SEKO Plunger Dosing Pump with a Maximum Flow Rate of 1000 L/h

The SEKO plunger dosing pump is a high-precision, high-pressure dosing device. It operates by using a motor-driven cam mechanism to actuate the plunger in a reciprocating linear motion. The plunger directly displaces the liquid in and out of the pump chamber, achieving a precise and stable dosing process.

Featuring a compact, simple structure and accurate flow rate adjustment, it is suitable for high-pressure dosing of particle-free, low-viscosity liquids. The pump head and plunger can be made of stainless steel or ceramic, offering excellent corrosion and wear resistance.

The pump is widely used in applications requiring high pressure and precision, such as chemical processing, water treatment, power generation, and industrial process control.

Specification
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Specification

PS2 Series
PS1 Series

PS2 Series

Spring-return mechanical device + aluminum housing
Flow rate range: 40–1000 L/h
Maximum pressure: 43/86/131/175 cycles/min
Stroke frequency: 58–116 cycles/min
Plunger diameter: 25–89 mm
Motor:standard power 0.55–0.75 kW (IP55)
Stroke length: 25 mm

Specifications

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Table 1: PS2 Series SEKO Plunger Dosing Pump Specifications
Model	Plunger Diameter (mm)	Stroke Frequency (cycles/min)	Flow Rate (L/h)	Maximum Pressure (bar)		Connection Type		Power (kW)	Weight (kg)
Model	Plunger Diameter (mm)	Stroke Frequency (cycles/min)	Flow Rate (L/h)	SS316L	PVC	SS316L	PVC	Power (kW)	SS316L	PVC
PS2E025A	25	58	40	20	10	3/8" G F	3/8" G F DN15	0.55 (D)	25	23
PS2E025C	25	116	80
PS2E030A	30	58	55
PS2E030C	30	116	112
PS2E038A	38	58	90			1/2" G F		0.75 (E)	26	24
PS2E038C	38	116	180
PS2E048A	48	58	140				1/2" G F
PS2E048C	48	116	284
PS2E054A	54	58	180	15	10				27	25
PS2E054C	54	116	365	15	10				27	25
PS2E064A	64	58	250	10	10	3/4" G F	3/4" G F		29	26
PS2E064C	64	116	505	10	10	3/4" G F	3/4" G F		29	26
PS2E076A	76	58	365	7	7	1" G F	1" G F		34	27
PS2E076C	76	116	730	7	7				34	27
PS2E089A	89	58	495	5	5				38	28
PS2E089C	89	116	1000	5	5				38	28

Installation Dimensions

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Table 2: Installation Dimensions of PS2 Series SEKO Plunger Dosing Pump
Wetted End Material	Plunger Diameter (mm)	A (mm)	B (mm)	C (BSP)	T (mm)	Three-phase					Single-phase
Wetted End Material	Plunger Diameter (mm)	A (mm)	B (mm)	C (BSP)	T (mm)	Motor Power (kW)	Motor Dimensions	D (mm)	E (mm)	F (mm)	Motor Power (kW)	Motor Dimensions	D (mm)	E (mm)	F (mm)
SS316L (21)	25	121	258	3/8" F	68	0.25 (B)	71 B14	385	443	187	0.37 (C)	71 B14	385	455	187
	30	122	258	3/8" F	68	0.25 (B)			443		0.37 (C)	71 B14	385	455	187
	38	164	268	1/2" F	88.5	0.37 (C)			455		0.55 (D)	80 B14	398	498	197
	48	164			88.5	0.55 (D)	80 B14	398	470	197	0.75 (E)			498
	54	176			108	0.55 (D)			472		0.75 (E)			500
	64	195	273	3/4" F	103	0.75 (E)			491		1.10 (Q)		412	523
	76	241	288	1" F	112				510					542
	89	253	288	1" F	125				510					542
PVC (31)	25	179	258	3/8" F	78	0.25 (B)	71 B14	385	453	187	0.37 (C)	71 B14	385	465	187
	30	178	258		78	0.25 (B)			453		0.37 (C)	71 B14	385	465	187
	38	200	268		98	0.37 (C)			467		0.55 (D)	80 B14	398	510	197
	48	244		1/2" F	108	0.55 (D)	71 B14	398	483	197	0.75 (E)			511
	54	253		1/2" F	118	0.55 (D)			483		0.75 (E)			511
	64	273	273	3/4" F	118	0.75 (E)			493		1.10 (Q)		412	525
	76	299	288	1" F	148				513					545
	89	309	288	1" F	158				513					545

PS1 Series

Spring-return mechanical device + aluminum housing
Flow rate range: 1.5–304 L/h
Maximum pressure: 20 bar
Stroke frequency: 58–116 cycles/min
Plunger diameter: 6–64 mm
Motor: Standard power 0.18–0.25 kW (IP55)
Stroke length: 15 mm

Specifications

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Table 3: PS1 Series SEKO Plunger Dosing Pump Specifications
Model	Plunger Diameter (mm)	Stroke Frequency (cycles/min)	Flow Rate (L/h)	Maximum Pressure (bar)		Connection Type		Power (kW)	Weight (kg)
Model	Plunger Diameter (mm)	Stroke Frequency (cycles/min)	Flow Rate (L/h)	SS316L	PVC	SS316L	PVC	Power (kW)	SS316L	PVC
PS1D006A	6	58	1.5	20	10	1/4" G F	1/4" G F DN15	0.18 (A)	14	12
PS1D006C	6	116	3						14	12
PS1D011A	11	58	5						14	13
PS1D011C	11	116	10
PS1D017A	17	58	11
PS1D017A	17	116	22			3/8" G F	3/8" G F DN15
PS1D025A	25	58	25
PS1D025C	25	116	50
PS1D030A	30	58	35					0.25 (B)	17	14
PS1D030C	30	116	70						17	14
PS1D038A	38	58	55	17	10				19	16
PS1D038C	38	116	110	17	10				19	16
PS1D048A	48	58	85	10	10	1/2" G F	1/2" G F		19	17
PS1D048C	48	116	170	10	10				19	17
PS1D054A	54	58	110	8	8				20	17
PS1D054C	54	116	220	8	8				20	17
PS1D064A	64	58	152	6	4	3/4" G F	3/4" G F		21	19
PS1D064C	64	116	304	6	4	3/4" G F	3/4" G F		21	19

Installation Dimensions

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Table 4: PS1 Series SEKO Plunger Dosing Pump Installation Dimensions
Wetted End Material	Plunger Diameter (mm)	A (mm)	B (mm)	C (BSP)	T (mm)	Three-phase					Single-phase
Wetted End Material	Plunger Diameter (mm)	A (mm)	B (mm)	C (BSP)	T (mm)	Motor Power (kW)	Motor Dimensions	D (mm)	E (mm)	F (mm)	Motor Power (kW)	Motor Dimensions	D (mm)	E (mm)	F (mm)
SS316L (21)	6	161	195	1/4" F	68	0.18 (A)	63 B14	333	362	151	0.25 (B)	71 B14	371	392	160
	11	161		1/4" F
	17	121		3/8" F
	25	121	200						367					397
	30	122	200			0.25 (B)	71 B14	371	378	160	0.37 (C)			397
	38	164	210		88.5				390					409
	48	164		1/2" F	88.5				390					409
	54	176		1/2" F	108				392					411
	64	195	215	3/4" F	103				401					420
PVC (31)	6	220	195	1/4" F	79	0.18 (A)	63 B14	333	368	151	0.25 (B)			398
	11	220		1/4" F
	17	179		3/8" F
	25	179	200		78				377					407
	30	178	200		78	0.25 (B)	71 B14	371	388	160	0.37 (C)			407
	38	200	210		98				402					421
	48	244		1/2" F	108				403					422
	54	253		1/2" F	118				403	165				422	165
	64	273	215	3/4" F	120				413	166				432	166