8
Receiving and installing
ED. 2009/11
3.6.
ASSEMBLY.
Once the location of the valve is defined, the pipe can be connected by welding the bodies of the valve or by means of
accessories (connectors). In this case, do not forget the seals and to tighten the joints well.
In K, M, and N-type (two bodies) valves, it is advisable to use connection adapters to connect one of
the bodies in order to facilitate disassembly of the valve.
Before welding the bodies to the piping, disassemble the valve to prevent damage to the joints.
Excessive stress should be avoided during the assembly of
the valves and special attention should be given to the
following:
•
Vibration which may be produced in the installation.
•
Expansion of the pipes during circulation of hot liquids.
•
The weight that the pipes can withstand.
•
Excessive intensity of welding.
3.7.
INSPECTING AND CHECKING.
Check the following before use:
•
Check that the clamps and the nuts are well
tightened.
•
Open and close the valve (applying
compressed air to the actuator or moving
manually if a handle is available) several
times to ensure that it operates correctly and
check that the shaft seal fits smoothly with
the valve body.
Seat gasket
Fluid
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