Sigma TRIUMPH - Valves and Components

Same installation as described in section 4.1 but with the additional heat source/heat load connections
as described below.
4.3 Valves and components
Sigma Sheetmetal Products Limited. Subject to technical modifications Page 7
1. Wetback WF: Wetback Flow connection
2. Pressure reducing valve WR: Wetback Return connection
3. 25NB Tee fitting SF: Solar Flow connection
SR: Solar Return connection
HF: Heating circuit Flow connection
HR: Heating circuit Return connection
Notes: The wetback hot flow pipe must have a minimum gradient of 1:20 at any point and an average
gradient not less than 1:7 : Use long radius bends
Wet back flow and return pipes must be minimum 25NB
Tee connection must be installed as per exploded view to ensure natural convection induced
flow
2
Cold water supply
1
7
Open vent
1
SR
SF
HR
HF
WF
WR
3
Bottom of Tank must be
higher than top of Fire