2.7 Main Outlet and Relief Valve ConnectionThe main outlet and the relief valve outlet are supplied with zero clearance, Oring sealed unions. The main outlet connection is ¾” MNPT and the relief valve is ½” FNPT. A ¾” source shut-off valve is also supplied with manifold control module. The inlet side of the source shut-off valve is ¾” MNPT for connection directly to the main outlet union. The outlet side of the source shut-off valve is a ¾” nominal copper. A plugged, ⅛ FNPT port is provided on the outlet side of the valve and may be removed to aid in purging.
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