The Join Type property setting for a component symbol defines whether the component can be inserted into an existing line. Join type settings also define how a line breaks when a component is inserted and whether adding the component to an existing line creates a new line group. 
Symbol properties for join type include the following options:
- Endline. Typically used for components that are placed at the end of a line (for example: caps or blind flanges), or placed in a drawing before connecting lines to them. Symbols with this property setting do not insert into lines.
- Inline. Setting for components that are regularly inserted into pipe or signal lines. Components with this join type move when the line is moved, behaving as part of the line. If the line is deleted, the component is deleted along with the line.
- Segment Breaker. Symbols with this join type can be inserted into lines. When these components are inserted, they break a line, and the line group and line number are retained for both line segments. For example, a reducer or a relief valve can break a line so that the line has different properties on either side of the component.
- Segment Group Breaker. Components with this join type (for example: ISO pumps, compressors, and blowers) can be inserted into a line and breaks the line into two line groups with different line numbers.
- No Join. Does not connect with lines (for example: agitators).