Kawamoto Pump Mfg. Co., Ltd.

Household

NR

Selection chartNOTEActual performance may slightly differ from the values in table and chart. Values in table show standard characteristics.

50Hz

Unit conversion calculator

NOTE
This is the only calculator for unit conversion. Graph will be not affected by this conversion.

Capacity: Q

U.S.GPM → m³/min
m³/min → U.S.GPM
→

Total head: H

feet → m
m → feet
→

For shallow well (in case total suction head: -8m)

Discharge head(m)

Capacity(L/min)

Specificiation tableNOTEActual performance may slightly differ from the values in table and chart. Values in table show standard characteristics.

50Hz

Convert to [U.S.GPM, ft.]

For shallow well (in case total suction head: -8m)

Capacity for low flow stop: 4L/min

Discharge bore	Suction bore	Model	Motor	Power source	Q (at 12m total H)	H (boot up)	Q	Starting H	Stop H	Volume of accumulator	CAD Download
mm	mm	―	W	V	L/min	m	L/min	MPa	MPa	L	―
20	20	NR135S	130	Single phase 100V	21	7	17	0.078	0.13	1	DL
20	20	NR155S	150	Single phase 100V	24	9	17.5	0.098	0.14	1	DL
25	25	NR205S	200	Single phase 100V	31	11	21.5	0.12	0.19	1	DL
25	25	NR205T	200	Three phase 200V	31	11	21.5	0.12	0.19	1	DL
25	25	NR255S	250	Single phase 100V	37	12	27	0.14	0.2	1	DL
25	25	NR255T	250	Three phase 200V	37	12	27	0.14	0.2	1	DL

Discharge bore	Suction bore	Model	Motor	Power source	Q (at 12m total H)	H (boot up)	Q	Starting H	Stop H	Volume of accumulator	CAD Download
mm	mm	―	W	V	U.S.GPM	ft.	U.S.GPM	MPa	MPa	L	―
20	20	NR135S	130	Single phase 100V	5	22	4	0.078	0.13	1	DL
20	20	NR155S	150	Single phase 100V	6	29	4	0.098	0.14	1	DL
25	25	NR205S	200	Single phase 100V	8	36	5	0.12	0.19	1	DL
25	25	NR205T	200	Three phase 200V	8	36	5	0.12	0.19	1	DL
25	25	NR255S	250	Single phase 100V	9	39	7	0.14	0.2	1	DL
25	25	NR255T	250	Three phase 200V	9	39	7	0.14	0.2	1	DL

Selection chartNOTEActual performance may slightly differ from the values in table and chart. Values in table show standard characteristics.

50Hz

Unit conversion calculator

NOTE
This is the only calculator for unit conversion. Graph will be not affected by this conversion.

Capacity: Q

U.S.GPM → m³/min
m³/min → U.S.GPM
→

Total head: H

feet → m
m → feet
→

For reservoir (in case total suction head: -1m)

Discharge head(m)

Capacity(L/min)

Specificiation tableNOTEActual performance may slightly differ from the values in table and chart. Values in table show standard characteristics.

50Hz

Convert to [U.S.GPM, ft.]

For reservoir (in case total suction head: -1m)

Capacity for low flow stop: 4L/min

Discharge bore	Suction bore	Model	Motor	Power source	Q (at 12m total H)	H (boot up)	Q	Starting H	Stop H	Volume of accumulator
mm	mm	―	W	V	L/min	m	L/min	MPa	MPa	L
20	20	NR135S	130	Single phase 100V	21	12	19.5	0.14	0.2	1
20	20	NR155S	150	Single phase 100V	24	14	20	0.16	0.21	1
25	25	NR205S	200	Single phase 100V	31	16	24	0.18	0.26	1
25	25	NR205T	200	Three phase 200V	31	16	24	0.18	0.26	1
25	25	NR255S	250	Single phase 100V	37	18	28	0.2	0.27	1
25	25	NR255T	250	Three phase 200V	37	18	28	0.2	0.27	1

NOTE) Starting head is set for shallow well (total suction head -8m) as default. When combining with reservoir, use with raised starting pressure setting. Also, stop pressure is a reference value.