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Close-coupled industrial pump with 520REHC LoadSure element pumphead

521 close coupled pump drives

521 close coupled pump drives

Quality, rugged, industrial pumping with all the features of cased drives
521I Inverter controlled

521I Inverter controlled

Variable speed drives include a stand-alone Siemens inverter to control pump speed
521FX Duplex fixed speed

521FX Duplex fixed speed

Fixed speed drives have twin heads allowing two-channel pumping

Contact Us

To order this product please contact us on:

Tel: +1 978 658 6168 and Toll free +1 800 282-8823

You can also send us an email or find your nearest distributor

 

Brochures

Overview

Close-Coupled pumps brochure

Close-Coupled pumps brochure

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Watson-Marlow 521VI/REHC, 521F/REHC, 521P/REHC, 521FX/REHC: 4-7 bar IP55 pumps fitted with LoadSure low-pressure element pumpheads

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

  • 520REM medium-pressure LoadSure element pumphead features large swept volume with sprung rollers for high accuracy.
  • Chemically-resistant polyphenylene sulphide track and rotor, and stainless steel rollers and bearings
  • Low rotational speeds greatly increase tube life and system reliability
  • Clutched rotor for rapid, effortless tube loading
  • Rugged, tool-unlockable guard

 

 

 

521VI varmeca521VI Varmeca close-coupled drives bring 10:1 speed control, constant torque output and total reliability to the industrial environment. The drive offers 230V and 400V three-phase power options, plus 110V and 230V single-phase.

  • 275 rpm maximum speeds
  • Stop/forward/reverse control and analogue or digital remote control. There is a PROFIBUS option

 

 

 

521F521F Fixed speed drives are three-phase powered.

  • There is a choice of speeds: 60 rpm, 213 rpm and 291 rpm
  • Flow rates from 2.5 ml/min to 4,600 ml/min
  • Other speeds are available on request

 

 

521FX Duplex521FX Duplex fixed speed drives have twin pumpheads allowing two channel pumping

  • There is a choice of speeds: 55 rpm and 183 rpm
  • Flow rates to 860 ml/min from each channel
  • Twin 520R2C pumpheads for balanced flow in two channels

 

521P Pneumatic, variable speed drives offer 5:1 control ratio. They require a filtered and lubricated 7 bar air supply. An exhaust silencer is fitted and static build-up is prevented by earth bonding.521P Pneumatic

  • High torque, reversible four-vane pneumatic motor
  • Variable speed: 5:1, max 257 rpm
  • Flow rates from 11 ml/min to 4,100 ml/min
  • ATEX II 2G (Zone 1) available on request

Control

  521F 521V 521P
Industry approved motors with 2 standard gearing speeds  •  •  •
Supplied with free standing variable frequency drive (VFD)    •  
Speed start/stop forward/reverse keypad control with remote control features    •  
Speed control ratio    10:1  5:1
VFD input power 230/3/60, 460/3/60, 115/1/60 in either NEMA 1 or NEMA 4X    •  
Standard integral gearmotor 3 phase 230/460V 60Hz TEFC  •  •  
Optional 115/1/60  •    
Optional gearbox and NEMA C motor  •  •  
Optional explosion proof (XP) motor  •  •  
Four vane pneumatic motor with speed limiting     • 
Optional FDA approved white epoxy paint  •  • •
Optional baseplate mounting  •  • •

Performance

LoadSure® Element tubing flow rates, ml/min(gph)    
Tube Material  Speed 3.2mm
Marprene TH, Bioprene TH Sta-Pure  6-57rpm 11-115(0.2-1.8)
46-470(0.7-7.4) 23-227rpm  46-470(0.7-7.4)

Pumphead

REH LoadSure high-pressure pumphead

  •  520REH LoadSure element pumphead offers up to 100 psi (7 bar) pressure and flow rates up to 1,500 ml/min.

 Elements are available in Bioprene TH, Marprene TH and GORE STA-PURE PCS with quick-release industrial connectors or world-standard ¾in PVDF sanitary connectors.

 

REM LoadSure medium-pressure pumphead

  •  520REM LoadSure element pumphead offers up to 60 psi (4 bar) pressure and flow rates up to 1,500 ml/min. 

 Elements are available in Bioprene TM, GORE STA-PURE PCS and GORE STA-PURE PFL with quick-release industrial connectors or world-standard ¾in PVDF sanitary connectors.

 

REL LoadSure low-pressure pumphead

  •  520REL LoadSure tube element pumphead offers up to 30 psi (2 bar) pressure and flow rates up to 3,500 ml/min.

 Elements are available in Bioprene TL, Pumpsil, GORE STA-PURE PCS and GORE STA-PURE PFL with quick-release industrial connectors or world-standard ¾in PVDF sanitary connectors.

 

R2 continuous tubing pumphead

  •  The 520R2 pumphead is designed for continuous tubing with a wall thickness of 2.4mm. It offers up to 30 psi (2 bar) pressure and flow rates from 0.25 ml/min to 4.6 litres/min.

 2.4mm wall tubing is avalable in five materials for almost any chemical requirement, in tube sizes from 0.5mm to 9.6mm internal diameter.

 

R continuous tubing pumphead

  •  The 520R pumphead is designed for continuous tubing with a wall thickness of 1.6mm. It offers up to 30 psi (2 bar) pressure and flow rates from 0.25 ml/min to 3.0 litres/min.

 1.6mm wall tubing is available in eight materials for almost any chemical requirement, in tube sizes from 0.5mm to 8.0mm internal diameter.

Drives

Close coupled drives offer rugged, industrial, quality pumping, with all the pumphead features of cased drives, but at the lowest possible whole-life ownership cost.

  • Varmeca close-coupled drives bring 10:1 speed control, constant torque output and total reliability to the industrial environment. The drive offers 230V and 400V three-phase power options, plus 110V and 230V single-phase
  • Fixed speed drives are three phase powered. There is a standard choice of speeds, and others are available on request

Datasheet download

521 REH Closed Coupled pumps

Manual download

 521F/REHC, 521P/REHC, 521VI/REHC, 521FX/REHC

521 Close Coupled

Tubing and hoses for your industry

  • Contact Us

    To order this product please contact us on:

    Tel: +1 978 658 6168 and Toll free +1 800 282-8823

    You can also send us an email or find your nearest distributor

     

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