Pumps - close-coupled

600 series close-coupled pumps

Overview

Close-coupled industrial pump with 620RE LoadSure® element pumphead

621F/RE, 62VI/RE, 621I/RE, 621FX/RE: 0-2 bar IP55 pumps fitted with LoadSure® tubing element pumpheads

621 close-coupled pumps offer IP55 ingress protection for light industrial environments. They offer rugged, industrial pumping, with all the pumphead features of cased drives, but at the lowest whole-life cost.

  • RE pumpheads: flow rates up to 19 L/min at 2 bar peak pressure
  • RE pumpheads using GORE STA-PURE PCS elements: flow rates up to 19 L/min at 4 bar peak pressure
  • Retractable rollers for tube loading and CIP and SIP
  • Rugged, tool-unlockable guard

 621VI Varmeca close-coupled drives bring 10:1 speed control, constant torque output and total reliability to the industrial environment. The drive offers 230 V and 400 V three-phase power options, plus 110 V and 230 V single-phase. Control is by a large speed knob and forward/reverse switching.

  • Varmeca integral inverter offering 10:1 control ratio: 77 rpm, 146 rpm and 261 rpm maximum speeds
  • Flow rates from 0.09 L/min to 19 L/min
  • Stop/forward/reverse control and analogue, digital, remote and PROFIBUS control options

 621F Fixed speed drives are three-phase powered

  • There is a choice of speeds: 77 rpm and 251 rpm
  • Flow rates from 0.1 L/min to 18 L/min
  • Other speeds are available on request

 621FX Duplex fixed speed drives have twin pumpheads allowing two channel pumping.

  • There is a choice of speeds: 69 rpm and 183 rpm
  • Flow rates to 12.2 L/min from each channel

 621I Inverter-controlled, variable speed drives include a stand-alone Siemens inverter to control pump speed.

  • Inverter can be mounted beside the pump or remotely
  • Three-speed ranges: 6-60 rpm; 21-213 rpm 29-291 rpm
  • Flow rates to 18.1 L/min

Features and benefits

  • Simplex flow rates up to 16.2 L/min, Duplex flow rates up to 35.6 L/min
  • Discharge pressures up to 4 bar with element style pumpheads
  • 620RE two roller or 620RE4 four roller pumphead with CIP/SIP rotor and rapid snap-fit tube loading, pumphead accepts both 12 mm and 17 mm industrial and sanitary LoadSure elements
  • Compact design with foot mounted gearbox
  • 24-hour continuous duty with a two-year warranty
  • Reversible operation
  • Fixed speed, pneumatic, or electronic variable speed using optional AC variable frequency drive
  • Fixed Speed options: 230/460 VAC, 60 Hz 3-phase or 120/240 VAC, 60 Hz, 1-phase. Variable speed options supplied with 230/3/60, 460/3/60, 120/1/60 or 220/1/60 Variable frequency drive

Technical summary

Max. flow rate 18 L/min
Min. flow rate0.92 L/min
Max. operating pressure4 bar
Max. operating pressure60 psi
Max. ambient temperature40 °C
Max. ambient temperature104 °F
Min. ambient temperature5 °C
Min. ambient temperature41 °F
Motor typesFixed speed motor 
Max. operating speed251 rpm
StandardsATEX 94/9/EC, CE 
Ingress ratingIP55 
Weight18.5 - 26 kg
Power supply230/400 V 3 ph, 50 Hz 

Technical Summary table lists features available within the range. See ‘Technical specifications’ tab for model specific information.

Performance

Performance

621F/R, 621F/RE and 621F/RE4

Tube bore and flow rates (L/min) Elements
Fixed 620R continuous tubing 620RE LoadSure 620RE4 LoadSure
Material rpm 6.4mm 9.6mm 12.7mm 15.9mm 12.0mm 17.0mm 12.0mm 17.0mm
Marprene, Bioprene TM 77/251 2.9/9.3 4.5/14.8 2.4/7.9 3.2/10.3
Marprene, Bioprene TL 77/251 1.0/3.3 1.9/6.3 3.1/10 4.2/11 2.9/9.3 4.7/16.9 2.4/7.9 3.6/11.8
Pumpsil Platinum Silicone Neoprene, STA-PURE PCS 77/251 0.92/3.0 2.1/6.8 3.2/11 4.7-14 3.0/9.7 4.7/15 2.5/8.3 3.3/11
STA-PURE PFL 77/251 0.92/3.0 1.9/6.3 3.1/10 4.7-15 3.1/10.0 5.6/18 2.6/8.5 3.9/13

621DF/RA (ATEX), 621DF/REA (ATEX) and 621DF/RE4A (ATEX)

Tube bore and flow rates (L/min) Elements
620R continuous tubing 620RE Loadsure 620RE4 Loadsure
Material rpm 6.4mm 9.6mm 12.7mm 15.9mm 12.0mm 17.0mm 12.0mm 17.0mm
Marprene, Bioprene TM 79/245 2.9-9.1 4.7-14 2.5-7.7 3.3-10
Marprene, Bioprene TL 79/245 1.0-3.2 2.0-6.1 3.2-9.8 4.3-11 2.9-9.1 5.3-16 2.5-7.7 3.7-12
Pumpsil, Neoprene, STA-PURE PCS 79/245 0.95-2.9 2.1-6.6 3.3-10 4.9-14 3.1-9.5 4.8-15 2.6-8.1 3.4-10
STA-PURE PFL 79/245 0.95-2.9 2.0-6.1 3.2-9.8 4.8-15 3.1-9.8 5.7-18 2.7-8.3 4.0-12

Specifications

Technical specifications

621F with 620R pumphead621F with 620RE pumphead621F with 620RE4 pumphead621DF with 620RA (ATEX) pumphead621DF with 620REA (ATEX) pumphead621DF with 620RE4A (ATEX) pumphead
Max. flow rate 18 L/min18 L/min18 L/min15 L/min18 L/min12 L/min
Min. flow rate0.92 L/min0.92 L/min0.92 L/min0.95 L/min2.9 L/min2.5 L/min
Max. flow rate4.75 usgpm4.75 usgpm4.75 usgpm
Min. flow rate0.24 usgpm0.24 usgpm0.24 usgpm
Max. operating pressure4 bar4 bar4 bar4 bar4 bar4 bar
Max. operating pressure60 psi60 psi60 psi60 psi60 psi60 psi
Max. ambient temperature40 °C40 °C40 °C40 °C40 °C40 °C
Max. ambient temperature104 °F104 °F104 °F104 °F104 °F104 °F
Min. ambient temperature5 °C5 °C5 °C5 °C5 °C5 °C
Min. ambient temperature41 °F41 °F41 °F41 °F41 °F41 °F
Motor typesFixed speed motor Fixed speed motor Fixed speed motor Fixed speed motor Fixed speed motor Fixed speed motor 
Max. operating speed246 rpm251 rpm251 rpm245 rpm245 rpm245 rpm
StandardsCE CE CE ATEX 94/9/EC, CE ATEX 94/9/EC, CE ATEX 94/9/EC, CE 
Ingress ratingIP55 IP55 IP55 IP55 IP55 IP55 
Noise75dB(A) at 1m 75dB(A) at 1m 75dB(A) at 1m <70dB(A) at 1m <70dB(A) at 1m <70dB(A) at 1m 
Weight18.5 kg18.5 kg18.5 kg26 kg26 kg26 kg
Weight40.43 lbs40.43 lbs40.43 lbs57 lbs57 lbs57 lbs
Power supply230/400V 3ph, 50Hz 230/400V 3ph, 50Hz 230/400V 3ph, 50Hz 230/400V 3ph, 50Hz 230/400V 3ph, 50Hz 230/400V 3ph, 50Hz 

Table lists details for fixed speed pumps. For more detail on drive, AC motor and inverter options please contact your local Watson-Marlow Technology Group representative.

621DF/RE dimensions

621DF/RA (ATEX), 621DF/REA (ATEX) and 621DF/RE4A (ATEX) dimensions

Materials of construction

GearboxAluminum, Cast iron
MotorCast aluminum alloy, Cast iron
Pumphead guardPowder coated aluminum LM24, Pressure die-cast aluminum LM24
Pumphead roller assemblyFortron 1140L0 (PPS), MoS2 filled Nylon 6 (Nylatron), Stainless steel 303S31
Pumphead rotor assemblyFortron 1140L0 (PPS), PPS/10% stainless steel strands
Pumphead trackAluminum alloy with epoxy polyester powder coat finish, Powder coated aluminum LM24
SealsNeoprene
Tube clamp assemblyPP (polypropylene)

Information listed covers the complete range of fixed speed pumps. For detailed specifications of individual models/components and other drive/pumphead options, refer to user manual or contact WMFTG representative.

Literature

Brochures

  1. Close-coupled pumps brochure (EN).pdf
    PDF - 1.2mb

Datasheet

  1. 621F R RE RE4 datasheet (EN).pdf
    PDF - 541.1kb
  2. 621DF ATEX datasheet (EN).pdf
    PDF - 161.2kb

Manuals

  1. 621 close-coupled manual (EN).pdf
    PDF - 1mb

Pumpheads

620R continuous tubing pumphead

  • 620R pumphead accommodates 3.2mm wall continuous tubing in four bore sizes from 6.4mm to 15.9mm, giving up to 16 liter/min (4.2 gpm) flow at up to 2bar (30psi) pressure.
  • Tubing is available in eight materials for almost any chemical requirement.

620RE LoadSure tube element pumphead

  • 620RE is a high-performance, accurate, two-roller pumphead with LoadSure rapid tube element change technology.
  • 4mm wall elements in 12mm or 17mm bore sizes allow pressures up to 4bar (60psi) and flow rates up to 18 liter/min (4.8gpm).
  • Elements are available with industry-standard tri-clamp sanitary fittings; and with Cam and Groove fittings for industry.

620RE4 LoadSure tube element pumphead

  • 620RE4 is a high-performance, accurate, four-roller pumphead with LoadSure rapid tube element change technology.
  • 4mm wall elements in 12mm or 17mm bore sizes allow pressures up to 4bar (60psi) and flow rates up to 13 liter/min (3.32gpm) with minimized pulsation.
  • Elements are available with industry-standard tri-clamp sanitary fittings; and with Cam and Groove fittings for industry.

620L twin-channel pumphead

620L is a specialist 2bar, six-roller pumphead designed for accurate dispensing to ±0.5%. Minimal pulsation is achieved by splitting the inlet flow into two tubes passing over twin, offset tracks. The two sets of out-of-phase pulses cancel each other out when the channels merge.

  • Uses 4.0mm wall Y-elements in a choice of six materials, or continuous tubing
  • Two single channels are also available
  • Tubing choices: 8mm, 12mm, and 16mm bore, offering flow rates from 0.002 to 12.4 liter/min (0.00053 to 3.3gpm)
  • Dispenses 500ml in 3.5 seconds

Order Information

Product codes

Pumps

Pump rpm Supply Product code
621F/R 77 230/400V 50Hz 3ph 0.37kW 060.8122.020 - *10:1
251 230/400V 50Hz 3ph 0.37kW 060.8152.020 - *5:1
621F/RE 77 230/400V 50Hz 3ph 0.37kW 060.8122.E20 - *10:1
251 230/400V 50Hz 3ph 0.37kW 060.8152.E20 - *5:1
621F/RE4 77 230/400V 50Hz 3ph 0.37kW 060.8122.E40 - *10:1
251 230/400V 50Hz 3ph 0.37kW 060.8152.E40 - *5:1
621DF/RA ATEX fixed speed PTC’s 79 230/400V 50Hz 3ph 0.37kW 060.8622.020 - *10:1
245 230/400V 50Hz 3ph 0.37kW 060.8652.020 - *10:1
621DF/REA ATEX fixed speed PTC’s 79 230/400V 50Hz 3ph 0.37kW 060.8622.E20 - *10:1
245 230/400V 50Hz 3ph 0.37kW 060.8652.E20 - *10:1
621DF/RE4A ATEX fixed speed PTC’s 79 230/400V 50Hz 3ph 0.37kW 060.8622.E40 - *10:1
245 230/400V 50Hz 3ph 0.37kW 060.8652.E40 - *10:1

*10:1 or 5:1 speed reduction available using VFD

*ATEX pumps 10:1 speed reduction available using VFD from geared units fitted with PTC thermistors

For alternative speeds and motor options contact Watson-Marlow Applications Engineering Department.

Pumpheads

Pumphead Description Product code
620R Two roller continuous tubing pumphead for maximum 2 bar peak pressure 064.0211.000
620RE Two roller LoadSure element pumphead for maximum 4 bar peak pressure 064.0231.000
620RE4 Four roller LoadSure element pumphead for maximum 4 bar peak pressure 064.0431.000
620RA (ATEX) Two roller continuous tubing pumphead for maximum 2bar peak pressure 064.0211.A00
620REA (ATEX) Two roller LoadSure element pumphead for maximum 4bar peak pressure 064.0231.A00
620RE4A (ATEX) Four roller LoadSure element pumphead for maximum 4bar peak pressure 064.0431.A00

Tubing 3.2mm wall

Bore/wall (mm) Bioprene Marprene Platinum Silicone PureWeld XL
6.4x3.2 933.0064.032 902.0064.032 913.A064.032
9.6x3.2 933.0096.032 902.0096.032 913.A096.032 941.0096.032
12.7x3.2 933.0127.032 902.0127.032 913.A127.032 941.0127.032
15.9x3.2 933.0159.032 902.0159.032 913.A159.032
Bore/wall (mm) Neoprene STA-PURE STA-PURE PFL
6.4x3.2 920.0064.032 960.0064.032 965.0064.032
9.6x3.2 920.0096.032 960.0096.032 965.0096.032
12.7x3.2 920.0127.032 960.0127.032 965.0127.032
15.9x3.2 920.0159.032 960.0159.032 965.0159.032

LoadSure elements

Material 12mm Tri-Clamp 3/4” PVDF connectors 17mm Tri-Clamp 3/4” PVDF connectors 12mm C&G with PP 3/4” connectors 12mm C&G with PP 3/4” connectors
Bioprene TL 0-2 bar (peak) 933.0120.PFT 933.0170.PFT
Bioprene TM 0-4 bar (peak) 933.M120.PFT 933.M170.PFT
STA-PURE PCS 0-4 bar (peak) 960.0120.PFT 960.0170.PFT
Pumpsil (0-2 bar peak) 913.A120.PFT 913.A170.PFT
Marprene TL 0-2 bar (peak) 902.0120.PPC 902.0170.PPC
Marprene TM 0-4 bar (peak) 902.M120.PPC 902.M170.PPC
Pumpsil 0-2 bar (peak) 913.A120.PPC 913.A170.PPC
Neoprene 0-2 bar (peak) 920.0120.PPC 920.0170.PPC

Recommended Products

  1. Marprene tubing

    Marprene tubing

    Thermoplastic elastomer tubing especially resistant to oxidizing agents. 23 ºF to 176 ºF (5 ºC to 80 ºC) to 100 psi.

    Tubing - peristaltic

  2. Bioprene - Thermoplastic tubing

    Bioprene - Thermoplastic tubing

    Thermoplastic tubing with long peristaltic life and low permeability. 23 ºF to 176 ºF (5 ºC to 80 ºC).

    Tubing - peristaltic

  3. GORE STA-PURE PCS tubing

    GORE STA-PURE PCS tubing

    Reinforced silicone tubing ideal for biopharmaceutical applications. -4 ºF to 176 ºF (-20 ºC to 80 ºC) to 100 psi.

    Tubing - peristaltic

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