Revision Date: 18 April 2023
Author: M. Daniels
A common failure mode is for debris to be drawn back into the PPCH and become lodged on the vent valve seat. This prevents the valve from fully closing and creates a leak path. Typically when this happens, the valve seat must be replaced. Replacement of the valve seat is considered as an advanced but moderate repair action.
All models of the PPCH and PPCH-G use the same vent valve seat:
All models of the PPCH and PPCH-G use the same vent valve seat:
Item Description: 122671,SEAT,200MPA,INLET,58 DEG
p/n: 3146645
Click the link below for the full article.