Samson EB 20b, Mounting And Operating Instructions

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5-1
EB 20b_EN
February 2022 edition
Subject to technical changes
Installation
5 Installation
The work described in this chapter may only be performed by
specialist personnel quali
fi ed to perform the corresponding task.
The following instructions apply additionally for ball valves. Ob-
serve chapter “4.3 Transporting and lifting the ball valve” for
transport to the installation site.
5.1 Installation conditions
Operator level
The operator level for the ball valve is the front view on all oper-
ating elements of the ball valve including the attachments from
the perspective of operating personnel.
The plant operator must make sure that operating personnel can
carry out all work after the device is installed safely and can ac-
cess it easily from the operator level.
Pipe routing
The guidelines applicable on site apply for the installation of ball
valves in the pipe.
Install the ball valve such that there is low vibration and no me-
chanical stress. Observe the sections “Installation orientation”
and “Support and mounting” in this chapter.
Install the ball valve so there is enough space to replace the actu-
ator and ball valve as well as to perform maintenance work.
Do not position the lined ball valves with the slid-on heat pack
directly in front of the pipe elbow.
Installation position
The ball valve can be installed in any installation position.
PFEIFFER recommends however to install the ball valve in general
so that the actuator points up in a vertical position.
In the following versions, the ball valve with actuator must be in-
stalled facing upwards or a corresponding support must be pro-
vided:
− Nominal sizes ≥ DN 100 / NPS4
− Ball valve with a stem extension or insulating part for temper-
atures below -10°C.
Ö
In the case of deviations from this installation position, con-
tact PFEIFFER.
Support and mounting
The plant manufacturer is responsible for the selection and imple-
mentation of a suitable support or mounting for the installed ball
valve as well as the pipe.
Venting
Vents are screwed into the exhaust air connections of pneumatic
and electropneumatic devices to ensure that the generated ex-
haust air can be released to the outside (protection against over-
pressure in the device). Furthermore, vents allow the intake of air
(protection against underpressure in the device).
Ö
Carry out venting on the side that faces away from the oper-
ator level.
Ö
When connecting the attachments, make sure that they can
be accessed from the operator level safely and easily.
5.2 Preparing for assembly
Ball valves with lining must be handled, transported and stored
with particular care, see Chapter “4 Delivery and on-site trans-
port”.
Perform the following steps after receiving the goods:
Ö
Check the scope of supply. Compare the delivered goods
with the delivery note.
Ö
Check the supply for transport damage. Report transport
damage to PFEIFFER and the transport company (see the de-
livery note).
Ensure the following conditions prior to assembly:
− The ball valve is clean.
− The ball valve data on the type plate (type, nominal size, ma-
terial, nominal pressure and temperature range) matches the
plant conditions (nominal size and nominal pressure of the
pipe, medium temperature, etc.). For details about the mark-
ing, see Chapter “2 Markings on the device”.
− Desired or required additional fi ttings, see Chapter “3.2 Ad-
ditional fi ttings”, are installed or prepared as far as necessary
before the assembly of the ball valve.
5.3 Assembling the ball valve and actuator
Ball valves are supplied in working order. In individual cases, the
actuator and ball valve are delivered separately and must be as-
sembled. The tasks are listed below that are necessary for assem-
bly and prior to the commissioning of the ball valve.
Danger and damage due to retro fi tting an actuator unit!
The subsequent fi tting of an actuator unit can pose a danger to
the user and cause damage to the pipe system.
Ö
Adapt the torque, rotation direction, actuation angle and ad-
justment of the “OPEN” and “CLOSED” end stops to the ball
valve.
WARNING