Installing The Valve Into The Pipeline - Samson 3349 Mounting And Operating Instructions

Installation
34
Fig. 5-3: Assembling Type 3349 Valve and
Type 3379 Actuator
5-6
5.3.2 Installing the valve into
the pipeline
NOTICE
!
Risk of valve damage due to work being
carried out by personnel not qualified for
such tasks.
The plant operator or specialist company
performing the welding is responsible for the
selection of the welding procedure and the
actual welding operations on the valve. This
also applies to any required heat treatment
to be performed on the valve.
Î Only allow qualified welding personnel
to carry out welding operations.
NOTICE
!
Premature wear and leakage due to insuffi-
cient support or suspension.
Î Support or suspend the valve sufficiently
at suitable points.
5.1
21
3
Note
36
40
To meet 3-A conformity requirements, a gas-
ket recommended by 3-A Sanitary Stan-
dards Inc. (see website
24
u http://www.3-a.org) must be used for a
2
Type 3349 Valve with threaded ends accord-
1
ing to DIN 11851/DIN 11887.
1. Close the shut-off valves in the pipeline
at the inlet and outlet of the plant section
while the valve is being installed.
2. Prepare the relevant section of the pipe-
line for installing the valve.
EB 8048-2 EN