Mandatory Port Requirements

Fitting Code	Inlet Port	Outlet Port	Branch Port	Typical Fitting
INLINE	YES	YES	NO	Fittings with the same inlet and outlet sizes (valves)
INLINE_REDUCING	YES	YES	NO	Inline fittings with different inlet and outlet sizes (reducers)
INLINE_JOINT(i)	YES	YES	NO	Coupling
FLANGE(ii)	YES	YES	NO	Any flange
GASKET(ii)	YES	YES	NO	Any gasket
CORNER	YES	YES	NO	Angle valve
CORNER_REDUCING	YES	YES	NO	Reducing elbows
CORNER_LET	YES	YES	NO	Any elbowlet
ELBOW(iii)	YES	YES	NO	Any elbow
BRANCH	YES	YES	YES	Straight tee
BRANCH_REDUCING	YES	YES	YES	Reducing tee
BRANCH_LET	YES	YES	NO	Weldolet
NOBREAK	YES	YES	NO	Pipe clamps and pipe supports

• The INLINE_JOINT is a special fitting code that has the same fitting insertion behavior as the INLINE code. Joint fittings such as couplings and sleeves must be assigned this code. The code is used by the automatic joint fitting selection functionality.

• FLANGE and GASKET are special fitting codes that have the same fitting insertion behavior as the INLINE code. Flange and gasket fittings such as a weldneck flange, slip-on flange, or any type of gasket, must be assigned their respective codes. The FLANGE and GASKET codes are used in the respective automatic flange and gasket fitting selection functionality.

• The ELBOW is a special fitting code that has the same fitting insertion behavior as the CORNER code. Elbow fittings such as 90 degree long/short radius and 45 degree long/short radius, must be assigned this code. This fitting code is used to automatically select an elbow fitting and insert it as a trimmed elbow or, insert elbows at all vertices of a pipeline with a single operation.

• The BRANCH_LET is a special fitting code for special branch outlet fittings (olet fittings and half couplings). The library part model of a branch outlet fitting must have a string value of BRANCH_LET in the string parameter FIT_TYPE.