IS 9115 : 2002 Method for Estimation of Incompressible Fluid Flow in Closed Conduits by Bend Meters

1 Scope

This standard provides the specification and installation ofbend meters used as primary elements in the measurement of clear,single phase, incompressible fluid flow. Accuracy of this measuringdevice depends upon the sharpness of bend and the velocity of flow,elimination of entrapped air in the upstream which is an essentialcondition, and on periodic calibration as no reliable data existson the influence of roughness of pipe on the coefficient ofdischarge of the meter. This device is not recommended for use invery sharp bends with R/d (radius of curvature to diameter of pipe)ratio less than 1.25 and velocity less than 1 m/s.

2. References

The Indian Standard listed below contains provision which through reference in this text, constitutes provision of this standard. At the time of publication, the edition indicated was valid. All standards are subject to revision and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent edition of the standard indicated below:

IS No. Title

9118:1979 Method for measurement of pressure by means of manometers