Type 4300 Catalogue - GMM Pfaudler Ltd

140
10 11
12 pH
140
10 11
12 13 pH
220
120
0.5 mm/year
0.2 mm/year
120
0.5 mm/year
220
180
C
100
80
0.1 mm/year
Fully Resistant
60
0.001 0.01 0.1 0.5 1 5 10
% Na2CO 3 by Weight
Volume to Surface Area Ratio (V/O) = 20
C
100
80
0.2 mm/year
0.1 mm/year
Fully Resistant
60
0.001 0.01 0.05 0.1 0.5 1 5 10 20
% NH by Weight
3
Volume to Surface Area Ratio (V/O) = 20
C
180
140
100
60
0.5 mm/year
0.2 mm/year
0.1 mm/year
Fully Resistant
20 40 60 80 100
C
140
100
60
40
0.5
mm/year
0.1 mm/year
Fully Resistant
0.2
mm/year
20 40 60 80 100
% H SO by Weight
2 4
Volume to Surface Area Ratio (V/O) = 20
% H PO by Weight
3 4
Volume to Surface Area Ratio (V/O) = 20
C
200
180
160
140
120
100
80
60
10
0.5 mm/year
0.2 mm/year
0.1 mm/year
Fully Resistant
20 30
% HCL by Weight
Volume to Surface Area Ratio (V/O) = 20
C
200
180
160
140
120
100
80
0.5 mm/year
0.2 mm/year
0.1 mm/year
Fully Resistant
20 40
60
% HNO by Weight
3
Volume to Surface Area Ratio (V/O) = 20
C
220
200
180
160
140
120
0.5 mm/year
0.2 mm/year
0.1 mm/year
Fully Resistant
20 40 60 80 100
% CH COOH by Weight
3
Volume to Surface Area Ratio (V/O) = 20
Although Type 4300 glass has a high degree of helpful compressive
stress in the glass layer, there are definite limits to the level of thermal
stress which the glass can withstand without incurring damage.
Only two conditions must be considered when determining the
temperature limits:
A. Introduction of media into a vessel. The limits are determined from
Chart A (located on next page).
B. Introduction of media into a jacket. The limits are determined from
Chart B (located on next page).
In both cases the safe operating range lies within the polygons as
outlined on the charts. The left and right sides on the polygons represent,
respectively, the minimum and maximum wall temperatures allowed. The
bottom and top on the polygons represent, respectively, the minimum
and maximum product temperatures allowed (Chart A) and the minimum
and maximum jacket temperatures allowed (Chart B).
With Chart B, it is also necessary to know the heat transfer film
coefficient of the jacket media. Three curves are shown : one for steam
2 2
(8500 Wm K) and two for typical heating oils (1500 and 1000 Wm K).
CAUTION : “Safe” operating temperatures vary with conditions.
Because so many variables are involved, temperature ranges are
given only as a guide. When practical, operation below the
maximum and above the minimum is recommended. Contact
Pfaudler for details.