Marine Installation Manual
2021-08
4-33
4 Ancillary Systems
4.4 Fuel gas system
X72DF
4.4
Fuel gas system
This section looks at the fuel gas system of the X-DF engines. There are currently
two different devices to control the fuel gas pressure delivered to the X-DF en
-
gines:
•
The Integrated Gas Pressure Regulation (iGPR) unit -
•
The Gas Valve Unit (GVU) -
The iGPR is an on-engine solution, while the GVU is an off-engine solution.
Therefore, the gas properties (see sections
) must
be achieved either at the inlet of the iGPR or the inlet of the GVU. As the iGPR
is on the engine, the engine inlet is identical to the iGPR inlet.
The latest version of the
Marine Installation Drawing Set
relevant for the gas
fuel system (DG 9727) is provided on the WinGD webpage under the following
link:
The document
Flushing Instruction for Gas Fuel Piping System
is accessible
under the following link:
Flushing instruction - Gas fuel piping system
4.4.1
Safety considerations
The engine room arrangement (the design and location of the equipment) and
the type of systems installed vary depending on the ship installation. However,
the main principles of gas safety and redundancy must meet the minimum re
-
quirements as defined in WinGD’s Safety Concept and in the relevant codes and
regulations, including the IGF and IGC Codes.
WinGD’s
Safety Concept
is provided on the WinGD webpage under the fol
-
lowing link:
2-S Dual-Fuel Engine Safety Concept
NOTE
Carefully read, understand and follow the instructions provided in the
above-mentioned Safety Concept. This document is an important pre
-
requisite for safe operation of the X-DF engine applications.
