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Watson-Marlow operates a policy of continuous product improvement. As new models are introduced, old models are phased out. This guide makes clear which models have been discontinued, and what is the recommended replacement.

The following list refers only to drives. The pumphead shown should not be considered. The pumps pictured are representative and not necessarily a specific model.

  • Discontinued model

    image alt text goes here101U/R, 101S/R, 101F/R - 120 pumps

  • Replacement model

    image alt text goes here120 range of laboratory pumps

     

    • Keypad control with speed display and intuitive interface
    • Brushless DC motor
    • Choice of pumpheads

  • Discontinued model

    image alt text goes here313F/D, 313S/D, 313U/D, 313T/D – 323 pumps

  • Replacement model

    image alt text goes here300 series of science and laboratory pumps

     

    • Enhanced control features
    • Keypad control with speed display
    • Increased power and speed control page
    • Brushless DC motor

  • Discontinued model

    image alt text goes here401 - 401U/D1, 401U/DM2, 401U/DM3

  • Replacement model

    image alt text goes here100 series of laboratory pumps

     

    • Keypad control with speed display and intuitive interface
    • Increased power and speed control range
    • Brushless DC motor
    • 3 year warranty

  • Discontinued model

    image alt text goes here504S/RL, 504S/RL2, 504S/L, 504U/RL, 504S/RL2, 504U/L, 504U/D, 504Du/RL, 504Du/RL2,504Du/L, 504S/D, 504Du/D. - 530 process pumps range

  • Replacement model

    image alt text goes here530 NEMA 4X (IP66) washdown pumps

     

    • Ingress protection upgraded from IP55 to IP66, NEMA 4X
    • Speed control range 2200:1
    • 59% more flow with new 520R2, 2.4mm wall pumphead fitted. Use 520R for 1.6mm wall tube

  • Discontinued model

    image alt text goes here505S, 505S/RL 505S/L 505S/D, 505U/RL, 505U/L 505U/D, 505Du/RL, 505Du/L, 505Du/D, 520S/RL 520S/L 520S/D, 5020/RL, 520U/L 520U/D, 520Du/RL, 520Du/L, 520Du/D - 530 process pumps range

  • Replacement model

    image alt text goes here530 process pumps range

     

    • 59% more flow with new 520R2, 2.4mm wall pumphead fitted. Use 520R for 1.6mm wall tube
    • Speed control range 2200:1
    • Higher torque from brushless DC motor
    • Still able to fit a number of different pumpheads

  • Discontinued model

    image alt text goes here505Dz - 505Dz/RL

  • Replacement model

    image alt text goes hereFlexicon dispensing pumps

     

    • Improved programming
    • Speed control range 2200:1
    • Available for use with 501RL and 313/314 pumpheads

  • Discontinued model

    image alt text goes here503 - 503P/RL, 503P/RL2, 503P/L, 503P/D

  • Replacement model

    image alt text goes here521 range of close coupled pumps

     

    • Industrial air motor, runs quieter
    • Lower cost

  • Discontinued model

    image alt text goes here501 Close-coupled - 501F/RL, 501l/RL

  • Replacement model

    image alt text goes here521 range of close coupled pumps

     

    • The 520R2C pumphead (2.4mm wall) offers higher flows with better flow stability over the 520RC (1.6mm wall)
    • Variable speed 5:1 high torque motor

  • Discontinued model

    image alt text goes here623S/R, 623U/R, 623Du – 630 process pumps

  • Replacement model

    image alt text goes here630 range (IP31) process pumps

     

    • Manual, remote, Analog and digital, plus Profibus
    • Keypad incorporates 3 pin level security PIN lock

  • Discontinued model

    image alt text goes here624S/R, 624S/RE, 624S/L, 624U, 624U/R, 624U/RE, 624U/L – 630 process pumps

  • Replacement model

    image alt text goes here630 range of NEMA 4X (IP66) process pumps

     

    • Ingress protection upgraded from IP55 to IP66, NEMA 4X
    • Speed control ratio 2650:1 (0.1 to 265rpm speed range)
    • Keypad incorporates 3 level security PIN lock
    • Industrial logic control from 5V up to 24V

  • Discontinued model

    image alt text goes here624624Di/R, 624Di/RE, 624Di/L

  • Replacement model

    image alt text goes here630 range of industrial process pumps

     

    • Improved ingress protection from IP55 to IP66, NEMA 4X
    • Speed control ratio 2650:1 (0.1rpm speed range)
    • Dispenses 500ml in 3.5 seconds with ±0.5% accuracy

  • Discontinued model

    image alt text goes here603P - 603P/R, 603P/L

  • Replacement model

    image alt text goes here 621 range of close coupled pumps

     

    • Upgraded to accept the new 620R pumphead with either continuous tube or with 620RE LoadSure elements
    • Flow rates to 18 litre/min

  • Discontinued model

    image alt text goes here601 baseplate - 601FB/R, 601VB/R, 601DFB/R, 601DVB/R

  • Replacement model

    image alt text goes here621 range of close coupled pumps

     

    • Upgraded to accept the new 620R pumphead for continuous tube or with 620RE with LoadSure elements
    • Fixed speed or Varmeca integral inverters for flows to 19 litre/min

  • Discontinued model

    image alt text goes here601 Close-coupled601F/R, 601DF/R, 601I/R, 601TI/R, 601 DV/R

  • Replacement model

    image alt text goes here621 range of close coupled pumps

     

    • Upgraded to accept the new 620R pumphead for continuous tube or with 620RE with LoadSure elements
    • Fixed speed or Varmeca integral inverters for flows to 19 litre/min

  • Discontinued model

    image alt text goes here700701S/R, 701S/RE, 701U/R, 701U/RE, 704S/R 704S/RE, 704U/R, 704U/RE

  • Replacement model

    image alt text goes here730 high flow process pumps

     

    • Smaller footprint, 5kg lighter, 30% less power consumption
    • Better control - precision 3600:1 speed turndown
    • Improved protection - IP66 (NEMA 4X) washdown drives
    • Five year warranty
    • Full process functionality; RS485 control, industrial 24V logic, volt free outputs, annalogue

  • Discontinued model

    image alt text goes here700Bredel SP

  • Replacement model

    image alt text goes hereBredel series

     

    • 20% lighter with a 35% smaller foot print using 20% less components
    • Flows to 108,000 litres/hr
    • Suction lift to 30ft
    • Dry running and reversible

  • Discontinued model

    image alt text goes here202 - 202AA 202BA

  • Replacement model

    image alt text goes here200 series multi-channel pumps

     

    • Superior track profile geometry and materials
    • 4, 8, 12, 16 channels with 12 or 16 channel extension heads
    • Fits to 205 or 500 series cased drives

  • Discontinued model

    image alt text goes here501 - 501RL, 501RL2

  • Replacement model

    image alt text goes here530 range of mid flow process pumps

     

    • 520R2 pumphead is designed to take up to 9.6mm bore x 2.4 wall tube 520R uses 1.6 wall tube
    • Flow rates to 3.5 litre/min from 520R2 and 2.4 litre/min from 520R
    • Larger track radius enables more flow at same speed as 501RL

  • Discontinued model

    image alt text goes here601R – 620R, 620RE, 620RE4

  • Replacement model

    image alt text goes here600 series mid flow process pumps

     

    • The 620R pumphead has a tool-unlockable front guard
    • Accepts all the same size continuous tubes as the 601R.
    • Easier tube loading and more positive tube retaining

  • Discontinued model

    image alt text goes hereMasoSine EcoSine

  • Replacement model

    image alt text goes hereCerta

     

    • Cleaner than lobe or circumferential piston pump
    • Energy efficient, extremely low downtime
    • Flow rates to 99,000 litre/hr, pressures to 15 bar
    • EHEDG (Type EL Class I and EL Aseptic Class I) and 3A


The 620R and 620RE are not retro-fittable to a close-coupled or cased drive manufactured for the 601R pumphead

Find out more about the Watson-Marlow range

The 620R pumphead has a snap-shut, tool-unlockable front guard Accepts all the same size continuous tubes as the 601R. Easier tube loading and more positive tube retaining

530 process pumps range

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    Fax: +91 20 2293 2019

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