Neptune 522-A Series Simplex (Non-removable, oil head cannot be converted to Duplex)

500-A Series

500-A Series Hydraulic Metering Pumps are Neptune's Simplex design. Neptune's Simplex design configuration includes a single micrometer dial with one liquid head. 500-A Series pumps cannot be converted to the Duplex design.

LIQUID HEAD MATERIALS OF CONSTRUCTION

• 316SS
• C-20
• PVC
• PVDF

DIAPHRAGMS

• PTFE

O-RINGS

• FKM as standard (PTFE available)

CAPACITY

• 0.80 gph (3.03 L/h) to 18 gph (68 L/h)

MAX PRESSURE

• 1,100 psi (75.8 bar)

MAX TEMPERATURE

• 316SS - 200°F (93°C)
• C-20 - 200°F (93°C)
• PVC - 125°F (52°C)

STANDARD MOTOR

• 1/3HP-1ph-115VAC-60c-TEFC

Features and Benefits

• EZE-CLEAN™ Valves – feature cartridges that can be removed for cleaning without disturbing the piping to the pump
• Ten turn micrometer dial calibrated in 1% increments, with the ability to adjust capacity from 10% to 100%
• Variable Oil By-Pass™ Stroke Adjustment provides a better valve performance when compared to variable linkage designs
• 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
• Totally enclosed fan-cooled motor with built-in automatic thermal overload

Dimensions

DIMENSIONS ARE APPROXIMATE. SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE.

Selection Chart

Standard Motor: 1/3hp-1ph-115VAC-60c-TEFC†
SIMPLEX ONLY

† See page 9 for motor options available. IEC metric motor adapter available.
§ Model 547 furnished with integral 1/2HP-1ph-115VAC-TEFC motor as standard.
* For sodium hypochlorite service, refer to Bulletin DP-500E.
** PVDF material options are only available in the 500-E series models. For more information please see bulletin DP-500E.
*** Standard motor only. For flange mounted motor, add 20 lb. (9 kg).
PVC and PVDF models, 125°F (52°C) maximum.

Downloads

500 Series-Brochure

Series 500‑5000-IOM

Dimensional Drawings

500‑A‑N3

500‑A‑N5

500‑A‑N3‑METRIC

500‑A‑N5‑METRIC