SICK FLOWSIC100 Flare - Calculating the Wetted Part Length for Cross-Duct Versions

Installation
FLOWSIC100 Flare · Addendum to Operating Instructions · 8025365/V1-0/2020-05 · © SICK Engineering GmbH 51
4.8.1.1
Calculating the wetted part length for cross-duct versions
Fig. 29 Formulas for calculation of the wetted part length wL for cross-duct versions
wL
CrossDuct
NozzleLength 2 GasketThickness LengthBallValve
WallThickness
 sin
----------------------------------------
FittingAdjust–+ + +=
β [°] = Nominal nozzle installation angle
NozzleLength [mm] = Nozzle length D1 or D2; dimension on nozzle installation tool
GasketThickness [mm] = Dimension of gasket thickness
LengthBallValve [mm] = Length of ball valve, measure from gasket surface to gasket surface
WallThickness [mm] = Wall thickness of pipe
FittingAdjust [mm] = 1 mm Compensation when tightening the self-cutting ring fitting (self-cutting ring fitting
displaces the duct probe by 1 mm when tightened)
wL
CrossDuct
NozzleLength GasketThickness
WallThickness
 sin
----------------------------------------
FittingAdjust–+ +=
Installation without ball valve (non-retractable)
Installation with ball valve (retractable)
wL
CrossDuct
NozzleLength 2 GasketThickness LengthBallValve
WallThickness
75 sin
----------------------------------------
FittingAdjust–+ + +
=
Example for 75°
wL
CrossDuct
NozzleLength GasketThickness
WallThickness
75 sin
----------------------------------------
FittingAdjust–+ +=
Example for 75°