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.

 

 

 

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.

 

 

 

521F521F Fixed speed drives are three-phase powered.

 

 

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

 

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

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

 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

 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

 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

 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

 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.

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