Specifications

25
Recommended Boiler Piping
Steam - Gravity Return
5015 5016 5017 5018 5019 5020
3" 3" 3" 3" 3" 3"
4" 4" 4" 4" 4" 4"
5" 5" 5" 5" 5" 5"
2-1/2" 2-1/2" 2-1/2" 2-1/2" 2-1/2" 2-1/2"
2" 2" 2" 2" 2" 2"
1-1/4" 1-1/4" 1-1/4" 1-1/4" 1-1/4" 1-1/4"
5021 5022 5024 5026
3" 3" 3" 3"
4" 4" 4" 4"
5" 5" 5" 5"
6" 6" 6" 6"
2-1/2" 2-1/2" 2-1/2" 3"
2" 2" 2" 2-1/2"
1-1/2" 1-1/2" 1-1/2" 1-1/2"
3 supply connections
boiler sizes 5015 thru 5020
* Required on gravity return
systems
4 or 5 supply connections
boiler sizes 5021 thru 5026
* Required on gravity return systems
*
*