Operating Parameters - Watson Marlow Pumps 620RA Serie Manual Del Usuario

10

Operating parameters

The following tube materials can be used with 620RA pumpheads. Bore sizes range from 6.4mm to
15.9mm, with 3.2mm wall thickness. LoadSure tube elements for the 620REA and 620RE4A are available
in 12mm or 17mm bore:
Tubing: working temperature range
Marprene
Bioprene
PureWeld XL
GORE® STA-PURE® Pump Tubing – Series PCS
GORE® STA-PURE® Pump Tubing – Series PFL
Neoprene
The following parameters define the boundary of the safe working envelope these values must not be
exceeded (ATEX compliance will be invalidated):
620RA, 620REA and 620RE4A pumpheads
Ambient temperature range
Max peak pressure (continuous tubing)
Max peak pressure (GORE® STA-PURE® Pump Tubing and
Marprene TM Loadsure elements only)
Max continuous speed
Max intermittent speed
Corrosion resistance
Tube life
19
5C to 80C (41F to 176F)
5C to 80C (41F to 176F)
- 20C to 80C (-4F to 176F)
- 20C to 80C (-4F to 176F)
- 20C to 80C (-4F to 176F)
0C to 80C (32F to 176F)
5C to 40C (41F to 104F)
2 bar (29 psi)
4 bar (58 psi)
165 rpm at 4 bar (58 psi)
See "Maximum speed by tube
type" on the facing page
265 rpm at 4 bar (58 psi)
See "Maximum speed by tube
type" on the facing page
See section 19 "Materials of
construction" on page 36
See section 11 "Tube life" on
page 21
PB0347:m-620atex-en-03