Mechanical Diaphragm Pumps
Neptune MP7100 Mechanical Diaphragm Metering Pump
MP7100. ~9–286 gph (34–1,083 L/h), up to 235 psi (16.2 bar), ±2% FS, 10:1 turndown, suction lift >20 ft.
Max flow
34 – 1,083 L/h（9 – 286 gph）
Max pressure
16.2 bar（235 psi）
Turndown / accuracy
±2% FS (duty)
Wetted materials
316SS / PVC / PVDF; diaphragm PTFE
Protection
—
Power
—
Features
- Corrosion-resistant aluminum oil-bath gearbox
- PTFE-faced preformed composite diaphragm
- Adjust while running; lockable micrometer
- Suction lift >20 ft on water-like fluids
- Good for off-gassing chemicals; NSF/CE
Specifications
| Flow range | 34 – 1,083 L/h（9 – 286 gph） |
| Max pressure | 16.2 bar（235 psi） |
| Accuracy | ±2% FS (duty) |
| Turndown | 10:1 |
| Suction lift | ultra 20 ft / approx. 6 m (water) |
| Wetted materials | 316SS / PVC / PVDF; diaphragm PTFE |
| Brand | Neptune (PSG Dover) |
Applications
Materials & media
| Wetted materials | 316SS / PVC / PVDF; diaphragm PTFE |
Common chemicals: NaOCl, acids, alkalis, polymers — confirm compatibility when inquiring.
Controls & communication
Control options are listed in notes or confirmed on inquiry.
Models & specs
| Model | Flow | Pressure | Notes | |
| MP7100-2N* | 34 L/h (9 gph) | to 16.2 bar (235 psi) | 50–235 psi approx. 9 gph | |
| MP7130-2N* | 53–57 L/h (14–15 gph) | to 16.2 bar (235 psi) | ||
| MP7120-2N* | 64–72 L/h (17–19 gph) | to 16.2 bar (235 psi) | ||
| MP7150-2N* | 102–114 L/h (27–30 gph) | to 16.2 bar (235 psi) | ||
| MP7180-2N* | 155–178 L/h (41–47 gph) | to 16.2 bar (235 psi) | ||
| MP7130-3N* | 148–167 L/h (39–44 gph) | to 11 bar (150 psi) | 3NX frame | |
| MP7120-3N* | 185–204 L/h (49–54 gph) | to 11 bar (150 psi) | ||
| MP7150-3N* | 284–318 L/h (75–84 gph) | to 11 bar (150 psi) | ||
| MP7180-3N* | 424–477 L/h (112–126 gph) | to 11 bar (150 psi) | ||
| MP7130-4N* | 344–356 L/h (91–94 gph) | to 7 bar (100 psi) | 4NX frame | |
| MP7120-4N* | 428–443 L/h (113–117 gph) | to 7 bar (100 psi) | ||
| MP7150-4N* | 693–719 L/h (183–190 gph) | to 7 bar (100 psi) | ||
| MP7180-4N* | 1,045–1,083 L/h (276–286 gph) | to 7 bar (100 psi) |
Dimensions & installation
Dimensional drawings available on request (CAD / PDF).
Downloads
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