Allowable Operating Conditions – Blanking Spades and Spectacle Blinds




DN

 Maximum Pressure (bar g)
Spades Lined Steel Spectacle Blinds

-29°C to 200°C

Solid PTFE Spectacle Blinds
-29°C to 149°C

 150°C to 200°C

 23°C 100°C
200°C
15
31.0
 31.0  31.0 31.0  31.0  24.0
 20 31.0  31.0  31.0  31.0 31.0
24.0
 25  31.0  31.0  31.0  31.0  27.0  15.0
 40  31.0  31.0  31.0  25.0  11.0  6.40
 50  24.0  22.0  31.0  31.0  18.0  10.0
 80  11.0  10.0  31.0  18.0  8.10  4.50
 100  6.30  5.90  30.6  29.0  13.0  7.40
 150  2.80  2.60  31.0  13.0  5.90  3.30
 200  1.60  1.50  31.0  7.30  3.30  1.80
 250  1.0  0.93  31.0  n/a n/a
 n/a
 300  0.68  0.64  31.0  n/a  n/a  n/a
350  0.57  0.54  n/a  n/a  n/a  n/a
 400  0.43  0.41  n/a  n/a  n/a  n/a


All spades and blinds are suitable for use under full vacuum conditions across the entire operating temperature range.

Figures for solid PTFE spectacle blinds are based on the following thicknesses

NB   Thickness
15 10
20 10
25 10
40 10    
50 16
80 16
100 27
150 27
200 27

Contact Details

Corrosion Resistant Products Ltd
Todmorden Road
Littleborough
OL15 9EG

Phone: +44(0)1706 756400
Fax: +44(0)1706 379567
Email: