Watson-Marlow 520DUN Bedienungsanleitung PDF herunterladen (Seite 9)

Biotechnology

A biopharmaceutical customer in Southern California focusing on oxygen

transport agents recently scrapped two of their rotary lobe pumps in favor of our

new 520 LoadSure

element pumps.

The manufacturing process of a haemoglobin-based blood substitute involves a

columnular chromatography step, which removes unreacted compounds from a

protein mixture. The protein needs to be pumped in at 40-50 psi and up to one

litre per minute. The chromatography column uses 95% ethanol and is cleaned

up with bleach. The customer was using a small rotary lobe pump, however

two problems persisted; the bleach caused corrosion of the pump and there

were concerns with contamination due to insufficient cleaning of the lobe head.

Both problems were solved with the introduction of the 520UN/REM pumps.

The high pressure LoadSure

elements are easy to clean and are corrosion free.

3500ml/min, with pressures to 7 bar

NOW SELECT

YOUR DRIVE

PAGES 14-15

Construction materials: All 520 pumpheads are constructed of high performance engineering plastics and stainless steel to defeat chemical

attack from process fluids and cleaning agents. The pumps are tough enough for the most arduous environments. Pumphead track: PPS;

guard, inner/outer: polycarbonate; guard seal: Neoprene; rotor hub: 316 stainless steel; roller arms, rotor cover: PPS; rollers, main/guide: 316

stainless steel; main roller bearings: stainless steel with PTFE seals; drain port and nut: polypropylene; drain plug: Hytrel

Performance was

achieved using

2 bar peak

pressure

Flow rate (ml/min)

Drive speed (rpm)

520REL performance (0-2 bar)

5050

100100

150150

200200

220220

200200

600600

400400

10001000

800800

14001400

12001200

16001600

200200

600600

400400

10001000

800800

14001400

12001200

16001600

6.4mm6.4mm

3.2mm

BorBor

Performance was

achieved using

4 bar peak

pressure

Flow rate (ml/min)

Drive speed (rpm)

520REM performance (2-4 bar)

erformance was

chieved using

7 bar constant

pressure

Flow rate (ml/min)

Drive speed (rpm)

20REH performance (4-7 bar)

520 pumpheads: flow ranges, 0.1-220 rpm, ml/min

Tube bore (mm, in, #)

/50

112

/32

/16

193

20R and

520R2

(contin-

ous

tubing)

TA-PURE PCS

STA-PURE PFL

Pumpsil

ureWeld XL

0.0040

9.5

0.01

0.04

0.18

390

0.40

870

0.70

1500

1.1

2400

1.6

3500

Bioprene /

4 shore tubing

0.0040

9.0

0.01

0.04

0.17

370

0.38

830

0.67

1500

1.1

2300

1.5

3300

520REL

(elements

o 2 bar)

TA-PURE PFL

Pumpsil

0.18

-390

0.70

-1500

1.6

-3500

Bioprene TL

.17

-370

.67

-1500

-3300

520REM

(elements

o 4 bar)

STA-PURE PFL

STA-PURE PCS

0.18

-390

0.70

-1500

Bioprene TM

0.17

370

0.67

1500

520REH

(elements

to 7 bar)

ioprene TH

STA-PURE PCS

.20

450

9.69.6

.0mm

.8mm

8mm

3 2mm

3.2mm

BorBor

Flow rate varies with tube material, discharge pressure, suction and viscosity

Flow rate (ml/min)

Drive speed (rpm)

520R2 performance (0-2 bar, 30 psi)

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 19 20

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