16
Determining Mag Probe Riser Size
Probe Riser Pipe Installation
A riser assembly consisting of a riser and riser cap, should be used for Mag Probe installation. Riser caps ( see
page 19) are normally fitted at the time of probe installation. If the probes are not to be installed immediately, cap
the riser.
Table 1 lists minimum riser dimensions for use with Veeder-Root mag probe float sizes.
DN = Diameter Nominal, NPS = Nominal pipe size, Pipe type is iron or schedule 40 steel
Table 1. Dimensions for Steel Riser Pipes and Mag Probe Floats
V-R Nominal
Float Size
(inch)
V-R Float OD
inch (mm)
Riser Size
Recommended
NPS Riser Size
inch (mm)
NPS Nom Pipe
(inch)
DN Nom Pipe
(mm)
ID Nom Pipe
(inch)
ID Nom Pipe
(mm)
1
1.155 (29.34)
1
25
1.049
26.65
2 (50)
2
1.875 (47.63)
2
50
2.067
52.51
2 (50)
3
3.015 (76.58)
3
80
3.068
77.93
3 (80)
4
3.765 (95.63)
4
100
4.026
102.26
4 (100)
