GE PT878 User Manual

Appendix B. Measuring P and L Dimensions

Transport® Model PT878 Portable Liquid Flowmeter User’s Manual

241

Use the following formula to determine the P dimension:

[ID + 2(WT)]/(cos MA) = 2 (CL- FD) = P dimension

For example, given the following:

inside diameter (ID) = 48”

wall thickness (WT) = 3/8”

installed coupling length (CL) = 2.0”

a transducer face depth (FD) = 1.75”

mounting angle (MA) = 45°

The P dimension would be:

[48 + 2(3/8)]/(0.7071) + 2(2.0-1.75) = 69.4”