Testing The Installed Valve - Samson 3354 Mounting And Operating Instructions

Installation
be attached that complies with VDI/
VDE 3845 for mounting a solenoid valve.
Î Turn the actuator as required to connect
the signal pressure line.
Î Use the customary fittings for metal or
copper tubing or plastic hoses.
Î Blow through all air pipes and hoses
thoroughly before connecting them.

5.4 Testing the installed valve

DANGER
!
Risk of bursting due to incorrect opening of
pressurized equipment or components.
Valves and pipelines are pressure equipment
that may burst when handled incorrectly.
Flying projectile fragments or the release of
process medium under pressure can cause
serious injury or even death.
Before working on the control valve:
Î Depressurize all plant sections affected
and the valve (including the actuator).
Release any stored energy.
Î Drain the process medium from all the
plant sections concerned as well as the
valve.
5-4
WARNING
!
Risk of hearing loss or deafness due to loud
noise.
Noise emission (e.g. cavitation or flashing)
may occur during operation caused by the
process medium and the operating condi-
tions. Additionally, a loud noise may briefly
occur through the sudden venting of the
pneumatic actuator or pneumatic valve ac-
cessories not fitted with noise-reducing fit-
tings. Both can damage hearing.
Î Wear hearing protection when working
near the valve.
WARNING WARNING
! !
Risk of personal injury due to exhaust air
being vented.
While the valve is operating, air is vented
from the actuator, for example, during
closed-loop operation or when the valve
opens or closes.
Î Wear eye protection when working in
close proximity to the control valve.
WARNING
!
Risk of personal injury due to preloaded
springs.
Control valves fitted with preloaded springs
are under tension.
Î Only open the valve body/actuator fol-
lowing the instructions in this document
(see the 'Servicing' section > 'Replacing
the gaskets' or 'Replacing the packing').
EB 8140 EN