Pumps - close-coupled

600 series close-coupled pumps

Arrange a demo

Arrange a demo

Overview

Close-coupled industrial pump with 620RE LoadSure element pumphead

621F/RE, 62VI/RE, 621I/RE, 621FX/RE: 0 bar to 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 rpm to 60 rpm; 21rpm to 213 rpm 29 rpm 291 rpm
Flow rates to 18.1 L/min

Features and benefits

Simplex flow rates up to 18 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 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 rate	0.92 L/min
Max. operating pressure	4 bar
Max. operating pressure	60 psi
Motor types	Fixed speed motor
Max. operating speed	250 rpm
Standards	ATEX 2014/34/EU, ATEX II 2G Ex h IIB T4 Gb X, CE
Ingress Protection	IP55
Weight	18.5 - 26 kg
Power supply	230/400 V 3 ph, 50 Hz

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

Specifications

Technical specifications

	621F with 620R pumphead	621F with 620RE pumphead	621F with 620RE4 pumphead	621DF with 620RA (ATEX) pumphead	621DF with 620REA (ATEX) pumphead	621DF with 620RE4A (ATEX) pumphead
Flow rate	0.92 L/min to 15 L/min	0.92 L/min to 18 L/min	0.92 L/min to 13 L/min	0.95 L/min to 15 L/min	2.9 L/min to 18 L/min	2.5 L/min to 12 L/min
Flow rate	0.24 USGPM to 3.96 USGPM	0.24 USGPM to 4.75 USGPM	0.24 USGPM to 3.43 USGPM
Max. operating pressure	2 bar (30 psi)	4 bar (60 psi)	4 bar (60 psi)	2 bar (30 psi)	4 bar (60 psi)	4 bar (60 psi)
Motor types	Fixed speed motor	Fixed speed motor	Fixed speed motor	Fixed speed motor	Fixed speed motor	Fixed speed motor
Standards	CE	CE	CE	ATEX 2014/34/EU, ATEX II 2G Ex h IIB T4 Gb X, CE	ATEX 2014/34/EU, ATEX II 2G Ex h IIB T4 Gb X, CE	ATEX 2014/34/EU, ATEX II 2G Ex h IIB T4 Gb X, CE
Ingress Protection	IP55	IP55	IP55	IP55	IP55	IP55
Noise	75dB(A) at 1m	75dB(A) at 1m	75dB(A) at 1m	<70dB(A) at 1m	<70dB(A) at 1m	<70dB(A) at 1m
Weight	18.5 kg (40.43 lbs)	18.5 kg (40.43 lbs)	18.5 kg (40.43 lbs)	26 kg (57 lbs)	26 kg (57 lbs)	26 kg (57 lbs)
Power supply	230/400 V 3 ph, 50 Hz	230/400 V 3 ph, 50 Hz	230/400 V 3 ph, 50 Hz	230/400 V 3 ph, 50 Hz	230/400 V 3 ph, 50 Hz	230/400 V 3 ph, 50 Hz

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

Materials of construction

Gearbox	Aluminium, Cast iron
Motor	Cast aluminium alloy, Cast iron
Pumphead rotor assembly	Fortron 1140L0 (PPS), PPS/10% stainless steel strands
Seals	Neoprene
Tube clamp assembly	PP (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 WMFTS representative.

Documentation

Brochures

Brewing industry (EN).pdf
PDF - 210.3kb
Biotechnology and Pharmaceutical overview (EN).pdf
PDF - 1mb
Mining Sector Brochure (EN).pdf
PDF - 922kb

Datasheets

621F with 620RE4 pumphead datasheet (EN).pdf
PDF - 819.9kb
621F with 620RE pumphead datasheet (EN).pdf
PDF - 819.9kb
621DF with 620RE4A (ATEX) pumphead datasheet (EN).pdf
PDF - 943.7kb
621DF with 620REA (ATEX) pumphead datasheet (EN).pdf
PDF - 944.9kb
621DF with 620RA (ATEX) pumphead datasheet (EN).pdf
PDF - 1003.4kb
621F with 620R pumphead datasheet (EN).pdf
PDF - 947.7kb

Manuals

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

Pumpheads

620R continuous tubing pumphead

620R pumphead accommodates 3.2 mm wall continuous tubing in four bore sizes from 6.4 mm to 15.9 mm, giving up to 16 L/min (4.2 GPM) flow at up to 2 bar (30 psi) 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.
4 mm wall elements in 12 mm or 17 mm bore sizes allow pressures up to 4 bar (60 psi) and flow rates up to 18 L/min (4.8 GPM).
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.
4 mm wall elements in 12 mm or 17 mm bore sizes allow pressures up to 4 bar (60 psi) and flow rates up to 13 L/min (3.32 GPM) 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 2 bar, 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 4.0 mm wall Y-elements in a choice of six materials, or continuous tubing
Two single channels are also available
Tubing choices: 8 mm, 12 mm, and 16 mm bore, offering flow rates from 0.002 L/min to 12.4 L/min (0.00053 GPM to 3.3 GPM)
Dispenses 500 ml in 3.5 seconds