The connection detail should show the 1/2-inch NPT supply interface,
concealed valve relationship, pipe alignment, flow direction and working
clearance required for installation and maintenance. The supply connection
should remain accessible and should not be subjected to excessive stress,
misalignment or interference from adjacent wall construction. Only verified
manufacturer dimensions should be used in final construction documents.
Complete Supply Connection
Show the building water supply, 1/2-inch NPT connection,
concealed valve and outlet path in one coordinated detail.
1/2-Inch NPT Interface
Identify the threaded connection between the building water
supply and concealed faucet assembly.
Supply Pipe Alignment
Keep the incoming water line aligned with the valve connection
to avoid unnecessary side loading.
Thread Engagement
Provide proper threaded engagement in accordance with the
approved product installation requirements.
Flow Direction
Show the intended direction of water movement from the building
supply through the valve toward the faucet outlet.
Valve Inlet Position
Identify the inlet side of the concealed valve and its
relationship to the supply pipe.
Valve Outlet Position
Show the downstream connection carrying water from the valve
toward the wall-mounted faucet.
Connection Centerline
Align the supply connection with the concealed valve centerline
and approved rough-in position.
Joint Clearance
Maintain sufficient working space around the threaded joint
for assembly, inspection and future maintenance.
Tool Access Zone
Provide enough clearance to use appropriate installation tools
without damaging surrounding construction.
Isolation Valve Access
Where an isolation valve is provided, keep it accessible for
commissioning and future servicing.
Pipe Support
Support the building supply independently so its weight does
not place unnecessary load on the faucet valve connection.
Valve Support
Secure the concealed valve to suitable backing or structure
rather than relying on the supply pipe for support.
Wall Cavity Clearance
Keep the water connection clear of studs, blocking and
adjacent concealed services.
Fitting Clearance
Maintain adequate space around fittings so connections can
be inspected without obstruction.
Sealant Application Zone
Apply suitable thread-sealing material according to the
approved installation instructions without contaminating
the internal waterway.
Connection Orientation
Maintain the approved valve and fitting orientation so the
connection remains accessible after installation.
Supply Stub-Out
Show the building supply stub-out positioned to connect
directly to the concealed faucet assembly.
Wall Penetration Clearance
Where piping passes through framing or wall construction,
maintain adequate clearance and protection around the pipe.
Moisture Separation
Keep electrical and sensor components separated from
potential plumbing leak points where practical.
Leak Inspection Zone
Keep the threaded connection visible or service-accessible
for pressure testing and leak inspection.
Pressure Test Point
Identify the supply connection as a required inspection
location during system pressure testing.
Service Removal Clearance
Allow sufficient space for the valve or fitting to be
disconnected without removing unrelated wall components.
Finished Supply Assembly
Show the completed 1/2-inch NPT connection securely supported,
correctly aligned and accessible for future inspection.
