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Check valve assy
M588-08-880 Issue D
7 Check valve assy
7.1 Description
The check valves must be operated in a vertical position with the gas flow in the direction of the arrow cast to
the outside of the check valve.
Before installing the check valve, the following OEM manuals must be read and understood. Failure to observe
this caution may cause injury or damage to personnel or equipment.
NW40 Check Valve Instruction Manual - A507-82-880.
NW50 Check Valve Instruction Manual - A507-91-880.
The check valve is fitted after the exhaust silencer in a vertical position. To fit a check valve to a horizontal silencer,
an additional elbow and fixings are required. To allow vertical fitment, the check valve kits listed in Table 58 are
recommended.
Table 58 - Check valve kits
Item Number Description Reference
A50782000 iXH check valve kit Figure 63
A50790000 iXL NW50 check valve kit Figure 64
M58808012 Check valve - Horizontal silencer - 100 ctr Figure 65
M59808012 Check valve - Horizontal silencer - 150 ctr Figure 66
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