Fig.7
Fig.8
Fig.8-1
Fig.9
4, Cares Before Installation Valve To Piping
Installation place :
Application to heavy-vibrant positions to be avoided.
To keep enough space for maintenance work. (Fig.7)
lInstallation work :
Connect the valve and the piping flanges correctly.
Forcing the valve to insert between the piping flanges
to be avoided.
Gasket packing :
The insertion between the valve and the piping-flanges
shall be needed the gaskets. In inserting,adjust
both the valve and the gasket to the center of the
flanges accurately. Keep space of about 3mm to 5mm
between the valve to the piping-gasket (the flanges) on
each side. (Fig.8)
Do not insert the valve between the piping flanges
forcefully. And also, do not use the flexible material
such as rubber to the gasket, otherwise, we
recommend the joint seat as the piping-gasket.
Further, in using the special gasket such as the spiral
gasket, please contact to sales person in charge.
Disc position :
Keep the valve in closed position when installation to
the pipings.
Installation the valve to ab ent pipe :
Upon installation of the valve to the pipings, no define
limitation of direction of the valve being installed but,
under such condition as illustrated in Fig.8-1, direction
of stem to be cared.
Installation the valve to a return valve to a return valve, etc... :
When the valve to be installed directly to return valve,
pumps, etc…, there may be cases in which disc
touches to other upon its full opening. In this case,
short-pipe to be fixed before installation of the valve.
(Fig.9)
6
