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Watson-Marlow 640RE/R

Peristaltic/Hose

Identification
ManufacturerWatson-Marlow
Series600 Series
Model / size640RE/R
Dosing typePeristaltic/Hose
Pump classCategory E — Peristaltic/hose, gentle handling dosing. Tube compression mechanism. Accuracy ±2.0%. Best for: shear-sensitive fluids, food/pharma, slurries, abrasives. Limit: 600.0 L/h, 2.0 bar. Self-priming.
Spec codeDSG-149
Dosing duty
Min flow100 L/h
Max flow600 L/h
Max pressure2 bar
Dosing accuracy2 %
Stroke frequency40 spm
Suction lift8 m
Max viscosity10000 cP
Control & drive
Control typeDigital + Analog 4-20mA + Manual + Fieldbus
Stroke adjustmentVariable speed 0-100%
Power284 W
Supply voltage230 VAC 1-phase V
IP ratingIP55
Materials & chemical
Liquid endPeristaltic tube
DiaphragmN/A (Tube pump)
pH range2-12 (general purpose)
Chemical compatibilityShear-sensitive fluids, sludge, polymer, viscous chemicals, slurry
Application
ServiceWastewater Treatment, Mining, Oil & Gas
Key featuresWatson-Marlow 640RE/R, 600 L/h at 2 bar, industrial peristaltic, 10000 cPs, 8m suction, fieldbus

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Pump specification, curve, seal plan, maintenance & troubleshooting

A complete, shareable page for a single pump. It plots the performance curve (head, efficiency and NPSHr against flow, with the best-efficiency point marked, or dosing flow against stroke), decodes the API 682 / ISO 21049 mechanical seal plan, and lists the full specification — duty and operating range, drive and motor, materials of construction, build and reliability, connections, weight and certifications. Pop-up panels give the type-specific preventive-maintenance schedule (daily to annual tasks with procedures) and a troubleshooting guide (symptoms, probable causes and recommended solutions).

Run a centrifugal pump near its BEP and keep dosing pumps in their recommended stroke band. Data is from the engineering reference database — confirm against the manufacturer's certified curve before procurement.

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