Watson Marlow 620S Peristaltic Pump
Watson-Marlow 620S/R

Condition
Used
Location
Duxford United Kingdom
Watson Marlow 620S Peristaltic Pump Watson-Marlow 620S/R
Watson Marlow 620S Peristaltic Pump Watson-Marlow 620S/R
Watson Marlow 620S Peristaltic Pump Watson-Marlow 620S/R
Watson Marlow 620S Peristaltic Pump Watson-Marlow 620S/R
Watson Marlow 620S Peristaltic Pump Watson-Marlow 620S/R
Watson Marlow 620S Peristaltic Pump Watson-Marlow 620S/R
Watson Marlow 620S Peristaltic Pump Watson-Marlow 620S/R
Watson Marlow 620S Peristaltic Pump Watson-Marlow 620S/R
Watson Marlow 620S Peristaltic Pump Watson-Marlow 620S/R
more Images
Watson-Marlow 620S/R
Watson-Marlow 620S/R
Watson-Marlow 620S/R
Watson-Marlow 620S/R
Watson-Marlow 620S/R
Watson-Marlow 620S/R
Watson-Marlow 620S/R
Watson-Marlow 620S/R
Watson-Marlow 620S/R

Machine data

Machine type:
Watson Marlow 620S Peristaltic Pump
Manufacturer:
Watson-Marlow
Model:
620S/R
Condition:
used

Price & Location

Location:
Duxford, UK United Kingdom
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Details about the offer

Listing ID:
A20123255
Reference number:
45289.SR4B
Update:
17.08.2026

Description

This listing is for 1 of 3 Watson Marlow 620S/R Peristaltic Pumps

The units are in full working condition and ready for immediate use

Design & Functionality

The 620S/R model is part of the 600 Series of cased peristaltic pumps featuring a brushless DC motor equipped with digital keypad control (620S) and a sturdy NEMA 2 / IP31 vented, wipe‑down enclosure suited for dry industrial environments ,It operates at dual voltage (100–120 V or 200–240 V, 50/60 Hz) and includes features like MemoDose for one-shot dosing and wireless guard-switching for safety

The casing is chemically resistant, with powder-coated die-cast aluminium construction and an easy-to-clean membrane keypad

Pump Performance

Flow range: 0.00026 to ~4.23 gpm (equivalent to ~0.001 to 16 L/min) with the 620R pump head

With newer 620RE LoadSure heads, the flow increases up to ~4.76 gpm (0.004–18 L/min)

Pressure capability: Up to approximately 60 psi (4 bar) with the appropriate head and tubing

Control accuracy: Exceptional 2,650:1 turndown ratio, fine speed control from 0.1 to 265 rpm in selectable increments (0.1, 0.5, 1, 2, 5, or 10 rpm), with 0.1% speed accuracy

Pump Heads & Tubing

The model supports the following interchangeable pump heads:

620R Mk II (continuous tubing, two rollers)

Ksdpexhdx Defx Ak Asdr
620RE and 620RE4 (LoadSure elements, two or four rollers)

These heads are compatible with various tubing materials (e.g., Marprene™, Bioprene™, Sta‑Pure™, silicone) and sizes (typically 6.4 mm to 17 mm inner diameter)

The 620RE and RE4 heads feature retractable rollers for easier cleaning (CIP/SIP) and rapid loading

AFAB Lab Resources - Used Lab Equipment

Physical Attributes & Construction

Ingress Protection: IP31 (NEMA 2) for the standard 620S/R; there are IP66/NEMA 4X variants (e.g., 620SN/R) for environments requiring better dust and water resistance

Weight: Around 19.6 kg (with 620R/RE head) to 20.1 kg (with 620RE4)

Sound level: Less than 70 dB(A) at 1 m—relatively quiet for continuous industrial operation

Advanced Features

MemoDose: Delivers precise single-shot volumes—ideal for dosing applications

Ramp function & non‑drip: Ramp improves handling of delicate fluids, preventing splashes/frothing, while non-drip minimizes residual drips at dose end (noted in related Di versions but often included in feature suites)

Data export: Some models (e.g. 620S/RE) support RS‑232 export of batch records—important for GMP compliance

Seller

Registered since: 2019

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