Nikuni KPD Regenerative Turbine Pump — Reliable CAC‑Bronze Monoblock Pump for Industrial Use

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Introduction

The Nikuni KPD regenerative turbine pump — built with CAC‑bronze and designed in a compact monoblock configuration — is engineered to meet the demanding needs of industrial applications. For engineers, OEM designers, and procurement professionals, the “Nikuni KPD Pump” offers dependable performance, long service life, and ease of installation.

Nikuni KPD regenerative turbine pump showcases robust CAC-bronze construction, offering self-priming performance and stable high-pressure flow ideal for OEM and industrial applications.

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Specification Data: Nikuni KPD Regenerative Turbine Pump

SI Unit

Item	KPD
Total Head	Max. 80 m
Capacity	Max. 110 L/min
Fluid Temperature	~120°C
Connection	Rc thread
Casing / Cover Material	CAC902
Impeller Material	CAC902 / SUS403
Mechanical Seal	Ceramic × Carbon × NBR
O‑Ring	NBR
Shaft Material	SUS316L
Open Drip Proof Motor (S)	50/60Hz: 100/110/115/200/220/230V, 0.3–0.56 kW, IP22, Class E
3‑Phase Indoor Motor (Z)	50Hz: 200V / 60Hz: 200/220V, 0.31–3.7 kW, IP44, Class E
Multi‑Voltage 3‑Phase Motor (ZM)	50Hz: 200/380/400/415V / 60Hz: 200/220/380/400/440/460V, 0.3–0.56 kW, IP44, Class E
Increased Safety Motor (A)	50Hz: 200V / 60Hz: 200/220V, 0.3–3.7 kW, IP44, Class E or F

USA Unit

Item	KPD (USA)
Total Head	Max. 360 ft
Capacity	Max. 30 gpm
Fluid Temperature	~248°F
Connection	Rc thread
Casing / Cover Material	CAC902
Impeller Material	CAC902 / SS403
Mechanical Seal	Ceramic × Carbon × NBR
O‑Ring	NBR
Shaft Material	SS316L
Open Drip Proof Motor (S)	50/60Hz: 100/110/115/200/220/230V, 1/2–3/4 HP, IP22, Class E
3‑Phase Indoor Motor (Z)	50Hz: 200V / 60Hz: 200/220V, 1/2–5 HP, IP44, Class E
Multi‑Voltage 3‑Phase Motor (ZM)	50Hz: 200/380/400/415V / 60Hz: 200/220/380/400/440/460V, 1/2–3/4 HP, IP44, Class E
Increased Safety Motor (A)	50Hz: 200V / 60Hz: 200/220V, 1/2–5 HP, IP44, Class E or F

All motors of 1 HP or above comply with IE3 standard.CAC902 material for impeller applies to models with 15A connection.

Dimensions and Weights

Model	kW	S·D	PR	PY	FA	FB	FC	MH	L	MA	ME	MF	MM	MN	MZ	VT	KL	Weight (kg)
15KPD02Z	0.31	Rc1/2	137.5	57	70.5	18	93	71	291	121	112	90	140	120	8×10	8	132	10.5
20KPD04Z	0.56	Rc3/4	137.5	66	76	21	106	71	297.5	121	112	90	140	120	8×10	8	132	12
25KPD07Z	0.975	Rc1	153	75	85.5	24	121.5	80	312.5	140	125	100	155	125	10×12	10	147	22
25KPD15Z	1.95	Rc1	153	75	85.5	24	121.5	90	350	154.5	140	125	176	149	10×12	10	156	26
32KPD07Z	0.975	Rc1 1/4	128.5	82	92	26	133	80	315.5	140	125	100	155	125	10×12	8	147	23
32KPD15Z	1.95	Rc1 1/4	151.5	82	92	26	133	90	353	154.5	140	125	176	149	10×12	10	156	27
40KPD15Z	1.95	Rc1 1/2	152.5	84	94	27	136	90	357	154.5	140	125	176	149	10×12	10	156	27
15KPD01S	0.15	Rc1/2	137.5	52	67	16.5	89	71	268	98	112	90	150	110	7×20	3.2	86	9
15KPD02S	0.3	Rc1/2	137.5	57	70.5	18	93	71	268	98	112	90	150	110	7×20	3.2	86	13
20KPD04S	0.56	Rc3/4	151	66	76	21	106	80	305	115	125	100	167	125	10×17	3.2	91	15
15KPD02A	0.31	Rc1/2	137.5	57	70.5	18	93	71	291	121	112	90	140	120	7	8	171	19
20KPD04A	0.56	Rc3/4	137.5	66	76	21	106	71	297.5	121	112	90	140	120	7	8	171	20
25KPD07A	0.975	Rc1	130	75	85.5	24	121.5	80	312.5	140	125	100	155	125	10	8	181	24
25KPD15A	1.95	Rc1	153	75	85.5	24	121.5	90	379	183.5	140	125	172	149	10	10	195	37.5
32KPD07A	0.975	Rc1 1/4	128.5	82	92	26	133	80	315.5	140	125	100	155	125	10	8	181	25
32KPD15A	1.95	Rc1 1/4	151.5	82	92	26	133	90	382	183.5	140	125	172	149	10	10	195	37.5
40KPD15A	1.95	Rc1 1/2	152.5	84	94	27	136	90	386	183.5	140	125	172	149	10	10	195	37.5

Threaded counter flange with rhombus shape is in accordance with Nikuni’s standard. Material of terminal box for TEFC motor (0.31–0.56 kW) is plastic. Motors ≥0.75 kW meet IE3 standard. Two capacitors used on 0.56 kW motors: one for starting, one for running.*

Why the Nikuni KPD Pump Serves Industrial Needs

Robust Construction & Self‑Priming Design

• The KPD pump is constructed with cast bronze (CAC) and stainless‑steel components — providing excellent corrosion resistance and durability, which prevents rust and extends service life.

• As a monoblock model, the pump integrates motor and pump in a single compact unit, simplifying installation and eliminating alignment issues.

• The KPD series features a high self‑priming capability — making it suitable for applications where priming or suction is required.

Stable, High‑Pressure Flow for Medium Flow Rate

• Designed for medium flow rate with high head pressure, the KPD maintains stable and reliable performance even under pressure fluctuations.

• The regenerative turbine mechanism — with impeller fixed to pump shaft and tight precision tolerances — ensures efficient, long-lasting operation.

Versatile Industrial Applications

The Nikuni KPD pump is ideal for:

• Cooling or temperature‑control systems

• OEM machine integration

• Cooling of welding equipment or machines requiring stable fluid circulation

• General industrial fluid transfer requiring corrosion resistance
  

Benefits for Engineers and Equipment Designers

• Durability: Bronze and stainless construction ensure long-term reliability.

• Space Efficiency: Monoblock design reduces footprint and installation complexity.

• Consistent Performance: Stable flow even under variable operating conditions.

• Multi‑Purpose Use: Suitable for diverse industrial environments.

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