Xylem Bell & Gossett Hoffman Speciality Series Engineering Data Manual page 37

38
NOTE:
Indicates direction of pitch
in piping connections
Method of taking double radiator
branch connections from riser
ECCENTRIC REDUCER
Method of reducing size of mains
Drop riser branch taken
from top of main at 45°
FULL SIZE
AT
LEAST 1"
Looping main around beam
RISER
MAIN
45° ELL
DRIP PIPE
DIRT POCKET
WET RETURN
Riser branch taken from bottom of
main and dripped into wet return
RADIATOR
BRANCH
RISER
ACCEPTABLE
Method of taking branches from mains
Drop riser taken from
bottom of main
AT
LEAST
1"
PLUG FOR
CLEANOUT
Looping dry return main around door
B.
C.
A.
RISER
Upfeed branch connection
taken from main at 45°
45°
PREFERRED
RISER
ANCHOR
Expansion joint made up of
pipe for risers
B Constant
1 ⁄ °
11 5.126
4
⁄ °
1
22 2.613
2
30° 2.000
45° 1.414
60° 1.155
To find C—multiply A by
constant for angle B