Application
Self-acting valve which prevents reverse flow
of the service fluid, for use with aggressive
liquids, steam and gases for service pressures
and temperatures:
Tightness of these valve types cannot be guaranteed.
Technical description
The valve is straight-way type. Disc is guided
in a bonnet. Flow direction in the valve is
from under the disc.
Connecting and face-to-face dimensions
Flange connecting dimensions as per
ÈSN 13 1060, DIN 2501and ÈSN 13 1061.
Face-to-face dimensions as per ÈSN EN 558,
DIN 3202 F1.
Basic face-to-face and connecting dimensions
are given in the table.
Material
Body, bonnet:
Z 15 cast stainless steel (42 2931)
C 09 DIN 1.4408
Disc stainless steel (13 Cr)
Testing
The valve is tested as per ÈSN 13 3060, part 2,
DIN 3230.
Installation
The valve must be installed only in horizontal
pipeline with the bonnet upwards.
Operation
The valve is self-acting, using the pressure of
the service fluid on the disc. |
