8 tube materials in atex applications – Watson-Marlow 505LA User Manual

Page 6

ATEX Directive: Watson-Marlow 505LA, 505LXA and 505LGA pumpheads User Manual

8 Tube materials in
ATEX applications

The following Watson-Marlow tube materials are suitable for use in ATEX applications:
l Pumpsil (platinum-cured silicone)
l Marprene
l Bioprene
l STA-PURE PCS
l STA-PURE PFL
l Neoprene
l PVC

Please note from the table below that there are limitations of length that can be used
for certain tube materials. Pumpsil cannot be used in any ATEX application above
the specified lengths listed. When using Bioprene and Marprene there is a reduction
in class suitability when they are in contact with Polymides.

Permissible length of tubing (cm) for IIB rating:

Series

Bore

(mm)

Wall

(mm)

Pumpsil

(cm)

STA-PURE

PCS* (cm)

STA-PURE

PFL* (cm) Marprene** Bioprene**

PVC

Neoprene

313DA, 501RLA, 505LA 9.6

2.4 14.4

unlimited

313DA, 501RLA, 505LA 8.0

2.4 12.8

unlimited

313DA, 501RLA, 505LA 6.4

2.4 11.2

unlimited

313DA, 501RLA, 505LA 4.8

2.4

9.6

104

unlimited

313DA, 501RLA, 505LA 3.2

2.4

8.0

125

unlimited

313DA, 501RLA, 505LA 1.6

2.4

6.4

156

unlimited

313DA, 501RLA

8.0

1.6 11.2

unlimited

313DA, 501RLA

6.4

1.6

9.6

104

unlimited

313DA, 501RLA

4.8

1.6

8.0

125

unlimited

313DA, 501RLA

3.2

1.6

6.4

156

unlimited

313DA, 501RLA

2.4

1.6

5.6

179

unlimited

313DA, 501RLA

1.6

4.8

208

unlimited

501RLA

0.8

1.6

4.0

250

unlimited

501RLA

0.5

1.6

3.7

270

unlimited

* If length limit exceeded for STA-PURE PCS and STA-PURE PFL, ATEX rating
reduced to IIA
** Marprene and Bioprene rated IIA when in contact with Polymides

This manual is related to the following products:

505LXA 505LGA