A pipe handles a flow rate of 35 gpm. Find the minimum inside diameter that will provide an average fluid velocity not the exceed 20 ft/s.

Problem 2

A steel tubing has a 1.5-in outside diameter and a 1.210-in inside diameter. It is made of AISI 1020 annealed steel having a tensile strength of 57,000 psi. What would be the safe working pressure for this tube assuming a factor of safety of 8?

Problem 3

Select the proper-sized steel tube for a flowrate of 25 gpm and an operating pressure of 1,000 psi. The maximum recommended velocity is 20 ft/s and the factor of safety 8. The tube is made out of SAE 1010 with a tensile strength of 55,000 psi.

TUBE OD (in) 1/8 3/16 1/4 5/16 3/8 WALL THICKNESS (in) 0.035 0.035 0.035 0.049 0.065 0.035 0.049 0.065 0.035 0.049 0.065 TUBE TUBE ID OD (in) (in) 0.055 1/2 0.118 0.180 0.152 0.120 0.243 0.215 0.183 0.305 0.277 0.245 5/8 3/4 WALL THICKNESS (in) 0.035 0.049 0.065 0.095 0.035 0.049 0.065 0.095 0.049 0.065 0.109 TUBE TUBE OD (in) 7/8 ID (in) 0.430 0.402 0.370 0.310 1 0.555 0.527 0.495 0.435 1-1/4 0.652 0.620 0.532 1-1/2 WALL THICKNESS (in) 0.049 0.065 0.109 0.049 0.065 0.120 0.065 0.095 0.120 0.065 0.095 TUBE ID (in) 0.777 0.745 0.657 0.902 0.870 0.760 1.120 1.060 1.010 1.370 1.310