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.

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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 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