Neptune Series 500 Duplex Metering Pumps

Series 500 Original has the same features as the Series 500 Standard line, except these models can be duplexed. Any duplex pump combination can be created using any of these models, so long as both models have the same stroking speed. (Add 15 lbs. to shipping weight for duplex models.)

Features:

Standard Motor: 1/3HP-1ph-115VAC-60c-TEFC
Totally Enclosed Fan-Cooled with built-in automatic thermal overload protection
Ten turn micrometer dial calibrated in 1% increments.
Bright color contrasted dial protected from corrosion by clear PVC covering.
Stroke mechanism moves only when adjustment is made, eliminating wear.
Piston is powered through complete stroke length at all capacity adjustments eliminating stress, wear and shock of lost motion designs.

Specifications are given below, or you can download product information for the Series 500 Metering Pump line (PDF format) here:

Data Sheet (specifications, performance charts & dimensions)

Series 500 Original Specifications

Model Number	Capacity @ 100 PSI		Materials of Construction	Pressure 1/4HP & 1/3HP		Pressure 1/2HP		Piston Diameter (inches)	Strokes Per Minute	Shipping Weight (lbs.)
Model Number	gph	lph	Materials of Construction	psi	kg/cm²	psi	kg/cm²	Piston Diameter (inches)	Strokes Per Minute	Shipping Weight (lbs.)
500-S-N1	0.8	3.0	Cast Iron	1000	70	n/a	n/a	0.500	37	70
500-S-N3			316 SS	1000	70	3000	210
500-S-N4			C-20	1000	70	n/a	n/a
500-S-N5			PVC	150	11	n/a	n/a
515-S-N1	3.0	11.3	Cast Iron	1100	77	n/a	n/a	0.500	117	70
515-S-N3			316 SS	1100	77	1800	125
515-S-N4			C-20	1100	77	n/a	n/a
515-S-N5			PVC	400	28	n/a	n/a
520-S-N1	2.0	7.5	Cast Iron	700	49	n/a	n/a	0.687	37	70
520-S-N3			316 SS	700	49
520-S-N4			C-20	700	49
520-S-N5			PVC	400	28
522-S-N1	4.0	15.1	Cast Iron	700	49	n/a	n/a	0.687	72	70
522-S-N3			316 SS	700	49
522-S-N4			C-20	700	49
522-S-N5			PVC	400	28
525-S-N1	7.0	26.5	Cast Iron	900	63	1500	105	0.687	117	70
525-S-N3			316 SS	900	63	1500	105
525-S-N4			C-20	900	63	1500	105
525-S-N5			PVC	400	28	n/a	n/a
530-S-N1	5.5	20.8	Cast Iron	350	25	n/a	n/a	1.062	37	70
530-S-N3			316 SS	350	25
530-S-N4			C-20	350	25
530-S-N5			PVC	300	21
532-S-N1	11.0	41.6	Cast Iron	350	25	600	42	1.062	72	70
532-S-N3			316 SS	350	25	600	42
532-S-N4			C-20	350	25	600	42
532-S-N5			PVC	300	21	n/a	n/a
535-S-N1	18.0	68.0	Cast Iron	350	25	600	42	1.062	117	70
535-S-N3			316 SS	350	25	600	42
535-S-N4			C-20	350	25	600	42
535-S-N5			PVC	300	21	n/a	n/a
537-S-N1	22.0	83.0	Cast Iron	350	25	400	28	1.062	144	70
537-S-N3			316 SS	350	25	400	28
537-S-N4			C-20	350	25	400	28
537-S-N5			PVC	300	21	n/a	n/a
547-S-N1	30.0	113.0	Cast Iron	200	14	350	25	1.187	144	70
547-S-N3			316 SS	200	14	350	25
547-S-N4			C-20	200	14	350	25
547-S-N5			PVC	200	14	300	21

Notes:
Change the letter "S" in the model number to the letter "D" to specify a duplex pump with identical heads.
547 models are furnished with an integral 1/2HP-1ph-115VAC-TEFC motor as standard.
Neptune recommends that 1/2 HP high pressure models be used only in flooded suction applications.
Shipping weights are for standard motors only. For flange mounted motors, add 20 lbs.

Neptune Series 500 Original Metering Pumps