wT 2858/02
Page 9
7
Technical Data
7.1
Material codes
The main criterion of the material codes is the basic material of the body.
Symbol
Body
Interior Parts
III
Grey cast iron
Without nonferrous metal parts
VII
Cast steel
Nonferrous metal parts possible
VIII
Cast steel
Without nonferrous metal part
X
Stainless steel
Parts coming into contact with
the medium are acid-resistant
Xc
Stainless steel
All parts acid-resistant
The above table may also contain material codes unavailable for this product.
7.2
P/T Diagrams
The applicable maximum limitations of use regarding pressure and temperature are
defined by their mutual interdependency. A P/T diagram is an ideal tool in order to select
a suitable valve for pre-defined operational characteristics.
