Metso can supply a pump sizing software called PumpDim (used to be the Svedala one). It is based on the Hazen-Williams method. But I prefer the GIW pump sizing software (called Slysel). It is more accurate and will handle differences in pressure loss between vertical, horizontal and sloped...
The problem we have is as follow:
on PTFE lined steel pipes, after one thermal cycle, the bolt torque decreases because of plastic liner deformation and bolts relaxation. It does not mean that it's leaking but we are wondering what is the usual practice with regard to retorquing.
We let the...
