Page 44 - INCOLA EXCLUSIVE DATA CATALOGUE
P. 44

System Design and Installation







                1. Primary Ventilated System Congurations


                Pressure in the discharge stack is controlled by
                air flow in the discharge stack and the stack vent.
                Alternatively, air admittance valves may be used.











                2. Secondary Ventilated System Congurations


                Pressure in the discharge stack is controlled by
                use of separate ventilating stacks and/or
                secondary branch ventilating pipes in connection
                with stack vents.









                3. Unventilated Discharge Branch Congurations


                Pressure in the discharge branch is controlled by
                air flow in the discharge branch.













                4. Ventilated Discharge Branch Congurations


                Pressure in the discharge branch is controlled by
                ventilation of the discharge.  Alternatively, air
                admittance valves may be used.

                Parameters defining the system are as follows;
                1. Bath
                2. Wash Basin             7.   Branch Discharge Pipe
                3. WC                     8.   Drain
                4. Floor Gully            9.   Stack Vent
                5. Air Admittance Valve   10. Ventilating Stack
                6. Stack                  11. Branch Ventilating Pipe
                                          12. Urinal



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