Table of Contents
Advertisement
4.6 Installation of valve with flanged connections
· Valve may be installed only by an authorized
mechanic, following valid norms and
standards.
· The valve must remain closed during
installation to ensure that any residue or dirt
does not damage the sealing faces.
· The sealing faces of the pipe flanges must be
parallel to the valve sealing faces and correctly
aligned.
· The length of the valve must be the same as
the distance between the flanges in the pipe
line, taking into consideration the gasket.
· The flanges in the pipeline must be
compatible with valve flanges. For detailed
information please refer to the standard
EN1092-1.
· The bolts and nuts used on installation must
be selected to match operating conditions
on installation location. Bolts and nuts must
also fulfill requirements of the pressure,
temperature, flange material and gasket.
For detailed information please refer to the
standards EN 1515-1, EN1515-2 and
1515-4.
www.vexve.com
· The gasket used on installation must be
selected to match operating conditions,
temperature, pressure and medium. Gasket
dimensions must be compatible with sealing
faces of the flanges. For detailed information
please refer to the standard EN1514.
· It is recommended to install the valve so
that the main flow direction is same as the
recommended flow direction for the valve.
· The recommended installation position for the
valve is at an angle (see Figure 13.) or with the
shafts in the horizontal position
(see Figures 12 and 22). Avoid installation with
the shafts fully upright.
Figure 22. The recommended method.
17
Advertisement
Table of Contents
