As shown in the sketch, kerosene at 90?F is being drained through 100 feet of 4 inch schedule 80 pipe from a storage tank at 10 psig to a settling tank as shown. The pipe discharge is 20 feet below the level of the storage tank. The pipe contains a swing check valve, a gate valve, two long radius elbows and a strainer with a loss coefficient, k, of 2.5. The entrance is inward projecting. What flow (GPM) can be expected if the gate valve is one-half open?

Kerosene @ 90 ?F 4-in Suction Pipe Length = 100m

Sg = 0.823 D = 0.3188 ft or 97.2 mm P1 = 10 psig

? = 51.20 lb/ft3 A = 0.07986 ft2 or 7.419 X 10-3m2 Z1 =17 ft

? = 1.60 slugs/ft3 Z2 = 3 ft

? = 3.43 X 10 -5

? = 2.14 X 10-5

Entrance is inward, K = 10

Swing Check Valve, Le/D = 100

Gate Valve, Le/D = 160

Strainer, K = 2.5

2 Long Radius Elbows, Le/D = 20

Transcribed Image Text:

Air @ 10 psig Check Valve Gate Valve Long radius elbow Strainer 20 feet 3' Air @ 10 psig Check Valve Gate Valve Long radius elbow Strainer 20 feet 3'

Answer rating: 100% (QA)

Density of the kerosene Length of the pipe Radius taken is ... View the full answer