• Flow rates up to 55.5 gph at 30 psi peak pressure with 520 LoadSure elements
• 520REL pumphead features large swept volume with sprung rollers for high accuracy
• Brushless motor, 2200:1 turndown, 0.1% set speed accuracy
• Large speed/flow display and easy to use tactile membrane keypad. Incorporates keypad lock
• Manual control with comprehensive flow rate calibration by volume or weight
• Value for life:the lowest cost of ownership
• Inputs: Analog 0-10V / 4-20mA software configurable and calibrated
• Speed scaling by keypad or second analog input for drop in replacement of diaphragm pumps
• Inputs: 4 pump status inputs all accepting 5V TTL or 24V industrial logic
• RS232 network control of up to 32 pumps - PROFIBUS DP now available
• Outputs: 4 relay outputs, up to 30V and 30W, user configured
• Outputs: 0-10V, 4-20mA analog or 0-1258Hz speed indication output
• Run time counter for enhanced process monitoring
• Dual voltage, 115V/230V 50/60Hz and 24 hour duty rated

A Watson-Marlow Value for life pump with five year warranty.

Fitted as standard with the 520REL LoadSure element pumphead which features a large swept volume with sprung stainless steel rollers for high accuracy. Low rotational speeds greatly increase tube life and system reliability. LoadSure elements fit into position for simple, error-free tube loading: optimum performance every time. Using the patented LoadSure D-connectors and easy-grip clutched rotor, the element can be changed in under one minute: simplicity itself, no special skills required.

The revolutionary 520REL LoadSure pumphead, taking Watson-Marlow benefits to thousands more industrial and sanitary applications.

• Flow rates up to 7.4 gph at 100psi constant pressure with 520 LoadSure elements
• 520REHC pumphead features large swept volume with sprung rollers for high accuracy, gentle pumping of shear-sensitive fluids
• Require less than one minute to change
• Clutched rotor for rapid and effortless tube loading
• Value for life:the lowest cost of ownership
• IP55 protection
• 1/3 HP industrial motor/gearbox
• 24-hour-duty rated
• Chemical and impact-resistant finish

A Watson-Marlow Value for life pump with two year warranty.

Fitted as standard with the NEW 520REHC LoadSure element pumphead which features a large swept volume with sprung stainless steel rollers for high accuracy. Low rotational speeds greatly increase tube life and system reliability.

LoadSure elements fit into position for simple, error-free tube loading: optimum performance every time. Using the patented LoadSure D-connectors and easy-grip clutched rotor, the element can be changed in under one minute: simplicity itself, no special skills required.

The revolutionary 520REHC LoadSure pumphead, taking Watson-Marlow Bredel benefits to thousands more industrial applications.

• Flow rates up to 56.9 gph at 30 psi peak pressure with 520 LoadSure elements
• 520RELC pumphead features large swept volume with sprung rollers for high accuracy, gentle pumping of shear-sensitive fluids
• Require less than one minute to change
• Clutched rotor for rapid and effortless tube loading
• Value for life:the lowest cost of ownership
• IP55 protection
• 1/3 HP industrial motor/gearbox
• 24-hour-duty rated
• Chemical and impact-resistant finish

A Watson-Marlow Value for life pump with two year warranty.

Fitted as standard with the NEW 520RELC LoadSure element pumphead which features a large swept volume with sprung stainless steel rollers for high accuracy. Low rotational speeds greatly increase tube life and system reliability.

LoadSure elements fit into position for simple, error-free tube loading: optimum performance every time. Using the patented LoadSure D-connectors and easy-grip clutched rotor, the element can be changed in under one minute: simplicity itself, no special skills required.

The revolutionary 520RELC LoadSure pumphead, taking Watson-Marlow Bredel benefits to thousands more industrial applications.

• Flow rates up to 24.7 gph at 60psi peak pressure with 520 LoadSure elements
• 520REMC pumphead features large swept volume with sprung rollers for high accuracy, gentle pumping of shear-sensitive fluids
• Require less than one minute to change
• Clutched rotor for rapid and effortless tube loading
• Value for life:the lowest cost of ownership
• IP55 protection
• 1/3 HP industrial motor/gearbox
• 24-hour-duty rated
• Chemical and impact-resistant finish

A Watson-Marlow Value for life pump with two year warranty.

Fitted as standard with the NEW 520REMC LoadSure element pumphead which features a large swept volume with sprung stainless steel rollers for high accuracy. Low rotational speeds greatly increase tube life and system reliability.

LoadSure elements fit into position for simple, error-free tube loading: optimum performance every time. Using the patented LoadSure D-connectors and easy-grip clutched rotor, the element can be changed in under one minute: simplicity itself, no special skills required.

The revolutionary 520REMC LoadSure pumphead, taking Watson-Marlow benefits to thousands more industrial applications.

• Flow rates up to 55.5 gph at 30 psi peak pressure with 520 LoadSure elements
• 520REL pumphead features large swept volume with sprung rollers for high accuracy
• Brushless motor, 2200:1 turndown, 0.1% set speed accuracy
• Large speed/flow display and easy to use tactile membrane keypad. Incorporates keypad lock
• Manual control with comprehensive flow rate calibration by volume or weight
• Value for life:the lowest cost of ownership
• Inputs: Analog 0-10V / 4-20mA software configurable and calibrated
• Speed scaling by keypad or second analog input for drop in replacement of diaphragm pumps
• Inputs: 4 pump status inputs all accepting 5V TTL or 24V industrial logic
• RS232 network control of up to 32 pumps - PROFIBUS DP now available
• Outputs: 4 relay outputs, up to 30V and 30W, user configured
• Outputs: 0-10V, 4-20mA analog or 0-1258Hz speed indication output
• Run time counter for enhanced process monitoring
• Dual voltage, 115V/230V 50/60Hz and 24 hour duty rated

A Watson-Marlow Value for life pump with five year warranty.

Fitted as standard with the 520REL LoadSure element pumphead which features a large swept volume with sprung stainless steel rollers for high accuracy. Low rotational speeds greatly increase tube life and system reliability. LoadSure elements fit into position for simple, error-free tube loading: optimum performance every time. Using the patented LoadSure D-connectors and easy-grip clutched rotor, the element can be changed in under one minute: simplicity itself, no special skills required.

The revolutionary 520REL LoadSure pumphead, taking Watson-Marlow benefits to thousands more industrial and sanitary applications.

• Flow rates up to 55.5 gph at 30 psi peak pressure with 520 LoadSure elements
• 520REL pumphead features large swept volume with sprung rollers for high accuracy
• Brushless motor, 2200:1 turndown, 0.1% set speed accuracy
• Large speed/flow display and easy to use tactile membrane keypad. Incorporates keypad lock
• Manual control with comprehensive flow rate calibration by volume or weight
• Value for life:the lowest cost of ownership
• Inputs: Analog 0-10V / 4-20mA software configurable and calibrated
• Speed scaling by keypad or second analog input for drop in replacement of diaphragm pumps
• Inputs: 4 pump status inputs all accepting 5V TTL or 24V industrial logic
• RS232 network control of up to 32 pumps - PROFIBUS DP now available
• Outputs: 4 relay outputs, up to 30V and 30W, user configured
• Outputs: 0-10V, 4-20mA analog or 0-1258Hz speed indication output
• Run time counter for enhanced process monitoring
• Dual voltage, 115V/230V 50/60Hz and 24 hour duty rated

A Watson-Marlow Value for life pump with five year warranty.

Fitted as standard with the 520REL LoadSure element pumphead which features a large swept volume with sprung stainless steel rollers for high accuracy. Low rotational speeds greatly increase tube life and system reliability. LoadSure elements fit into position for simple, error-free tube loading: optimum performance every time. Using the patented LoadSure D-connectors and easy-grip clutched rotor, the element can be changed in under one minute: simplicity itself, no special skills required.

The revolutionary 520REL LoadSure pumphead, taking Watson-Marlow benefits to thousands more industrial and sanitary applications.

• Flow rates up to 55.5 gph at 30 psi peak pressure with 520 LoadSure elements
• 520REL pumphead features large swept volume with sprung rollers for high accuracy
• Brushless motor, 2200:1 turndown, 0.1% set speed accuracy
• Large speed/flow display and easy to use tactile membrane keypad. Incorporates keypad lock
• Manual control with comprehensive flow rate calibration by volume or weight
• Value for life:the lowest cost of ownership
• Inputs: Analog 0-10V / 4-20mA software configurable and calibrated
• Speed scaling by keypad or second analog input for drop in replacement of diaphragm pumps
• Inputs: 4 pump status inputs all accepting 5V TTL or 24V industrial logic
• RS232 network control of up to 32 pumps - PROFIBUS DP now available
• Outputs: 4 relay outputs, up to 30V and 30W, user configured
• Outputs: 0-10V, 4-20mA analog or 0-1258Hz speed indication output
• Run time counter for enhanced process monitoring
• Dual voltage, 115V/230V 50/60Hz and 24 hour duty rated

A Watson-Marlow Value for life pump with five year warranty.

Fitted as standard with the 520REL LoadSure element pumphead which features a large swept volume with sprung stainless steel rollers for high accuracy. Low rotational speeds greatly increase tube life and system reliability. LoadSure elements fit into position for simple, error-free tube loading: optimum performance every time. Using the patented LoadSure D-connectors and easy-grip clutched rotor, the element can be changed in under one minute: simplicity itself, no special skills required.

The revolutionary 520REL LoadSure pumphead, taking Watson-Marlow benefits to thousands more industrial and sanitary applications.

• Flow rates up to 55.5 gph at 30 psi peak pressure with 520 LoadSure elements
• 520REL pumphead features large swept volume with sprung rollers for high accuracy
• Brushless motor, 2200:1 turndown, 0.1% set speed accuracy
• Large speed/flow display and easy to use tactile membrane keypad. Incorporates keypad lock
• Manual control with comprehensive flow rate calibration by volume or weight
• Value for life:the lowest cost of ownership
• Inputs: Analog 0-10V / 4-20mA software configurable and calibrated
• Speed scaling by keypad or second analog input for drop in replacement of diaphragm pumps
• Inputs: 4 pump status inputs all accepting 5V TTL or 24V industrial logic
• RS232 network control of up to 32 pumps - PROFIBUS DP now available
• Outputs: 4 relay outputs, up to 30V and 30W, user configured
• Outputs: 0-10V, 4-20mA analog or 0-1258Hz speed indication output
• Run time counter for enhanced process monitoring
• Dual voltage, 115V/230V 50/60Hz and 24 hour duty rated

A Watson-Marlow Value for life pump with five year warranty.

Fitted as standard with the 520REL LoadSure element pumphead which features a large swept volume with sprung stainless steel rollers for high accuracy. Low rotational speeds greatly increase tube life and system reliability. LoadSure elements fit into position for simple, error-free tube loading: optimum performance every time. Using the patented LoadSure D-connectors and easy-grip clutched rotor, the element can be changed in under one minute: simplicity itself, no special skills required.

The revolutionary 520REL LoadSure pumphead, taking Watson-Marlow benefits to thousands more industrial and sanitary applications.

• Flow rates up to 55.5 gph at 30 psi peak pressure with 520 LoadSure elements
• 520REL pumphead features large swept volume with sprung rollers for high accuracy
• Brushless motor, 2200:1 turndown, 0.1% set speed accuracy
• Large speed/flow display and easy to use tactile membrane keypad. Incorporates keypad lock
• Manual control with comprehensive flow rate calibration by volume or weight
• Value for life:the lowest cost of ownership
• Inputs: Analog 0-10V / 4-20mA software configurable and calibrated
• Speed scaling by keypad or second analog input for drop in replacement of diaphragm pumps
• Inputs: 4 pump status inputs all accepting 5V TTL or 24V industrial logic
• RS232 network control of up to 32 pumps - PROFIBUS DP now available
• Outputs: 4 relay outputs, up to 30V and 30W, user configured
• Outputs: 0-10V, 4-20mA analog or 0-1258Hz speed indication output
• Run time counter for enhanced process monitoring
• Dual voltage, 115V/230V 50/60Hz and 24 hour duty rated

A Watson-Marlow Value for life pump with five year warranty.

Fitted as standard with the 520REL LoadSure element pumphead which features a large swept volume with sprung stainless steel rollers for high accuracy. Low rotational speeds greatly increase tube life and system reliability. LoadSure elements fit into position for simple, error-free tube loading: optimum performance every time. Using the patented LoadSure D-connectors and easy-grip clutched rotor, the element can be changed in under one minute: simplicity itself, no special skills required.

The revolutionary 520REL LoadSure pumphead, taking Watson-Marlow benefits to thousands more industrial and sanitary applications.

• Flow rates from 0.025 to 4.8 gpm (0.1 to 18.1 liter/min)
• 621F/R, 621DF/R twin-roller pumps accept continuous tubing
• 621F/RE, 621DF/RE twin-roller pumps accept LoadSure™ elements
• 621F/RE4, 621DF/RE4 four-roller pumps accept LoadSure™ elements
• Twin rollers give higher flow, four rollers give lower pulsation
• IP55 protection, 24-hour-duty rated
• Compact, portable design
• One-minute loading pumphead
• Two-year warranty
• Value for Life: The lowest cost of ownership
• 0.37kW 3-phase 50Hz industrial motor/gearbox
• Eex-d explosion-proof options

A Watson-Marlow Value for life pump with two year warranty.

Chemical and knock-resistant finish. Clockwise rotation gives extended tube-life, counter-clockwise greater pressure and higher-viscosity handling. Simple one-minute element change.

Any pumphead and tubing combination can be used for 0 to 2 bar (0 to 30 psi) operation. For 30 to 60psi (2 to 4 bar) operation, use a 620RE or 620RE4 pumphead fitted with a Marprene®, Bioprene® or Sta-Pure® element, or a 620R pumphead fitted with continuous Sta-Pure® tubing.

• Dual pumpheads for balanced twin-channel flows
• Flow rates from 0.025 to 4.9 gpm (0.1 to 18.7 liter/min) per channel
• 621FX/R, 621DFX/R twin-roller pumps accept continuous tubing
• 621FX/RE, 621DFX/RE twin-roller pumps accept LoadSure™ elements
• 621FX/RE4, 621DFX/RE4 four-roller pumps accept LoadSure™ elements
• Twin rollers give higher flow, four rollers give lower pulsation
• IP55 protection, 24 hour-duty rated
• Compact, portable design
• Two-year comprehensive warranty
• Value for Life: The lowest cost of ownership
• 0.55kW and 0.75 kW 3-phase 50/60Hz industrial motor/gearbox
• Eex-d explosion-proof options

A Watson-Marlow Value for life pump with two year warranty.

Chemical and knock-resistant finish. Simple, one-minute element or tube changing.

Any pumphead and tubing combination can be used for 0 to 2 bar (0 to 30 psi) operation. For 30 to 60psi (2 to 4 bar) operation, use a 620RE or 620RE4 pumphead fitted with a Marprene®, Bioprene® or Sta-Pure® element, or a 620R pumphead fitted with continuous Sta-Pure® tubing.

• Dual pumpheads for balanced twin-channel flows
• Flow rates up to 4.8 gpm (15.8 liter/min) per channel
• 621IX/R twin-roller pumps accept continuous tubing
• 621IX/RE twin-roller pumps accept LoadSure™ elements
• 621IX/RE4 four-roller pumps accept LoadSure™ elements
• Twin rollers give higher flow, four rollers give lower pulsation
• IP55 protection, 24 hour-duty rated
• Compact, portable design
• Two-year comprehensive warranty
• Value for Life: The lowest cost of ownership
• 0.55kW 3-phase 50/60Hz industrial motor/gearbox
• Eex-d explosion-proof options
• 10:1, 5:1 and 2:1 electronic speed control options
• RS485 control options

A Watson-Marlow Value for life pump with two year warranty.

Chemical and knock-resistant finish. Simple, one-minute element or tube changing.

Any pumphead and tubing combination can be used for 0 to 2 bar (0 to 30 psi) operation. For 30 to 60psi (2 to 4 bar) operation, use a 620RE or 620RE4 pumphead fitted with a Marprene®, Bioprene® or Sta-Pure® element, or a 620R pumphead fitted with continuous Sta-Pure® tubing.

• Flow rates from 0.025 to 4.8 gpm (0.1 to 18.1 liter/min)
• 621I/R twin-roller pumps accept continuous tubing
• 621I/RE twin-roller pumps accept LoadSure™ elements
• 621I/RE4 four-roller pumps accept LoadSure™ elements
• Twin rollers give higher flow, four rollers give lower pulsation
• IP55 protection, 24 hour-duty rated
• Compact, portable design
• Two-year comprehensive warranty
• Value for Life: The lowest cost of ownership
• 0.37kW 3-phase 50/60Hz industrial motor/gearbox
• Eex-d explosion-proof options
• 10:1, 5:1 and 2:1 electronic speed control options
• RS485 control options

A Watson-Marlow Value for life pump with two year warranty.

Chemical and knock-resistant finish. Simple, one-minute element or tube changing.

Any pumphead and tubing combination can be used for 0 to 2 bar (0 to 30 psi) operation. For 30 to 60psi (2 to 4 bar) operation, use a 620RE or 620RE4 pumphead fitted with a Marprene®, Bioprene® or Sta-Pure® element, or a 620R pumphead fitted with continuous Sta-Pure® tubing.

• Flows up to 8.8 GPM (33.3 liters/min) and 30 psi maximum operating pressure with single channel 720R pumphead
• Continuous tubing from source to delivery
• 3,600:1 control ratio (0.1 to 360rpm speed range)
• Display pumphead speed or calibrated flow rate
• Manual control flow calibration and MemoDose for single shot dispensing
• Maintenance-free brushless DC motor
• Dual voltage 100-120/200-240V 50/60Hz power supply range, 350VA
• Optional integral float switch leak detector and fluid management
• 720RX extension pumphead can be fitted to double the flow
• Remote control (contact closure or 5V TTL to 24V industrial logic) PROFIBUS DP now available

The pump is fitted with a 720R pumphead as standard for continuous tubing. Continuous tubing is available in four material choices and five bore sizes.

• Flows up to 8.8 GPM (33.3 liters/min) and 30 psi maximum operating pressure with single channel 720R pumphead
• Continuous tubing from source to delivery
• 3,600:1 control ratio (0.1 to 360rpm speed range)
• Display pumphead speed or calibrated flow rate
• Manual control flow calibration and MemoDose for single shot dispensing
• Maintenance-free brushless DC motor
• Dual voltage 100-120/200-240V 50/60Hz power supply range, 350VA
• Optional integral float switch leak detector and fluid management
• 720RX extension pumphead can be fitted to double the flow
• Remote control (contact closure or 5V TTL to 24V industrial logic) PROFIBUS DP now available

The pump is fitted with a 720R pumphead as standard for continuous tubing. Continuous tubing is available in four material choices and five bore sizes.

• Flows up to 8.8 GPM (33.3 liters/min) and 30 psi maximum operating pressure with single channel 720R pumphead
• Continuous tubing from source to delivery
• 3,600:1 control ratio (0.1 to 360rpm speed range)
• Display pumphead speed or calibrated flow rate
• Manual control flow calibration and MemoDose for single shot dispensing
• Maintenance-free brushless DC motor
• Dual voltage 100-120/200-240V 50/60Hz power supply range, 350VA
• Optional integral float switch leak detector and fluid management
• 720RX extension pumphead can be fitted to double the flow
• Remote control (contact closure or 5V TTL to 24V industrial logic) PROFIBUS DP now available

The pump is fitted with a 720R pumphead as standard for continuous tubing. Continuous tubing is available in four material choices and five bore sizes.

• Flows up to 8.8 GPM (33.3 liters/min) and 30 psi maximum operating pressure with single channel 720R pumphead
• Continuous tubing from source to delivery
• 3,600:1 control ratio (0.1 to 360rpm speed range)
• Display pumphead speed or calibrated flow rate
• Manual control flow calibration and MemoDose for single shot dispensing
• Maintenance-free brushless DC motor
• Dual voltage 100-120/200-240V 50/60Hz power supply range, 350VA
• Optional integral float switch leak detector and fluid management
• 720RX extension pumphead can be fitted to double the flow
• Remote control (contact closure or 5V TTL to 24V industrial logic) PROFIBUS DP now available

The pump is fitted with a 720R pumphead as standard for continuous tubing. Continuous tubing is available in four material choices and five bore sizes.

• Flows up to 8.8 GPM (33.3 liters/min) and 30 psi maximum operating pressure with single channel 720R pumphead
• Continuous tubing from source to delivery
• 3,600:1 control ratio (0.1 to 360rpm speed range)
• Display pumphead speed or calibrated flow rate
• Manual control flow calibration and MemoDose for single shot dispensing
• Maintenance-free brushless DC motor
• Dual voltage 100-120/200-240V 50/60Hz power supply range, 350VA
• Optional integral float switch leak detector and fluid management
• 720RX extension pumphead can be fitted to double the flow
• Remote control (contact closure or 5V TTL to 24V industrial logic) PROFIBUS DP now available

The pump is fitted with a 720R pumphead as standard for continuous tubing. Continuous tubing is available in four material choices and five bore sizes.

• 25mm pump provides a maximum flow rate of 575 gph
• Self-priming and dry running, with no valves, seals or glands
• Hinged access door makes tube loading simple and safe
• Long life USP Class VI Bioprene or STA-PURE tubing
• Ideal for viscous or shear sensitive products

Motor/gearbox and control options include fixed speed, variable speed with mechanical variators, explosion proof motors or fixed-speed motors with inverter control for 4-20mA and 0-10V process control, remote stop/start and reverse, and frequency output.

• Maximum flow rate of 35 gpm (8000 liter/hour)
• Hinged door makes changing tube simple and safe
• Use USP Class VI Bioprene tubing
• Choice of continuous tubing or elements with hygienic connectors
• Bareshaft pumpheads accept foot-mounted motors
• Cantilevered pumpheads accept flange-mounted motors

Motor/gearbox and control options include fixed speed, variable speed with mechanical variators, Eex-d rated motors or fixed speed motors with inverter control for 4-20mA and 0-10V process control, remote stop/start and reverse, and frequency output.