PRESSURE VESSELS
Technical Information
Polyglass Pressure Vessels ø 05" - 13"
Composite Pressure Vessels;
* threaded opening 4" top
* threaded opening 4" top/bottom
* flanged openings 6" top
* flanged openings 6" top/bottom
Composite Hot Water Pressure Vessels 6" flanged openings top/bottom

PRESSURE VESSELS / Technical Information

Clarification of types
Legend
Q

C

P

V

HP

Polyglass ø 05" - 13"

Composite ø 14" - 79"

Polyester

Vinylester ø 06" - 13"

Vinylester ø 14" - 36"

Example:
P - 08 35 "P" means tank is polyester,
"08" means diameter is 8 inches,
"35" means height is 35 inches without base.


Chemical Resistance

 
Conc.
Temp.
Polyester
Vinylester
Composite/ Threaded
Composite/ Flanged
%
°C / °F
+ =resistant, - = non resistant
Hydrochloric acid/ HCl
20
50 / 122
-
+
+
+
Hydrochloric acid/ HCl
20
65 / 149
-
+
-
+
Sulphuric acid/H2 SO4
25
50 / 122
-
+
+
+
Sulphuric acid/H2 SO4
25
65 / 149
-
+
-
+
Nitric acid/ HNO3
20
50 / 122
-
+
-
-
Nitric acid/ HNO3
5
65 / 149
-
+
-
-
Phosphoric acid/ H3PO4
50
20 /  68
-
+
+
+
Sodium hypochlorite/ NaOCl
5
20 / 122
-
+
-
-
Sodium hydroxyde/ NaOH
50
65 / 149
-
+
-
-
Sodiumhydroxide/ NaOH
20
65 / 149
+
-
+
Ammonia
20
65 / 149
-
+
-
-
Ammonia
10
20 /  68
+
+
+
Ozone
-
-
-
-
Chlorine
-
-
-
-
Chromic acid
20
65 / 149
-
+
-
-
Chromic acid
30
50 / 122
-
+
+
+
Note: These specifications only apply if the outer shell is kept free from large amounts of the medium. In this case an additional protective coating with a special PU-varnish is strongly recommended. The table applies only to Structural pressure vessels which are finished in the materials stated above. They are not valid for distribution systems, connecting conduits and spare parts.