7 | P a g e
B6 Pressure Testing prior to/during Commissioning
Every valve was subjected to a final inspection by Hawle in accordance with EN12266-1. The testing
conditions for a pipeline section apply for pressure testing of a fitting within a system, but with the
following restrictions:
The testing pressure of a fitting may not exceed a value of "1.5 x max. working pressure" (in
accordance with fitting type plate, see Section A4). The wedge must be in the opened
position.
A closed valve may not be loaded with more than "1.1 x max. working pressure" so that the
wedge is not overloaded.
B7 Removal of Fitting
Note:
The information provided in the instruction manual of the drive must also be followed.
The same safety instructions as for the pipe section apply and, if available, also for the drive and
control system. These instructions must also be followed when removing the fitting.
Remove the valve with the following steps:
1. First depressurize and fully empty all pipe sections.
2. Then disconnect all electrical supply lines (only for drive).
3. Only use the fastening methods stated in Section A4.
The valve may only be removed from the pipeline, if:
the pipe section is entirely depressurized and empty,
all electrical supply lines have been disconnected (drive).
Risk to life and limb of persons in the vicinity of the fitting if these warnings are
not heeded by the user.
4. Take care when pulling out the fitting: Do not damage the flange sealing surfaces.
5. Observe Section A4 for transport and storage.
C) Operating and Maintenance
Note:
Additional information may be provided by the instruction manual of the drive.
The planner of the system must perform a comprehensive risk analysis in accordance with MRL
2006/42/EG.
To this end, Hawle Armaturenwerke GmbH will provide the following documents:
Installation and Operating instructions,
an instruction manual for the drive regarding notes on connection to the control system.
This instruction manual contains safety instructions regarding foreseeable risks when
using the fitting in an industrial setting.
It is the responsibility of the planner/operator to adhere to these instructions in
addition to being mindful of any plant-related risks.
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