According to U.S. regulations what is the...

Question 1 / 270705eccef9dbacbc34ba4d45c7c

Question 1 of 270705eccef9dbacbc34ba4d45c7c

According to U.S. regulations what is the maximum allowable working pressure (MAWP) for each hose assembly used for transferring oil?

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Question 1 of 27070

According to U.S. regulations what is the maximum allowable working pressure (MAWP) for each hose assembly used for transferring oil?

🔍 Key Concepts

• Oil transfer hoses requirements in 33 CFR Part 155 and/or 33 CFR Part 154 • Difference between a fixed pressure value requirement and a multiple of operating/relief pressure requirement • Understanding units: psi vs kPa and approximate conversions (1 psi ≈ 6.9 kPa)

💭 Think About

• Is the regulation written as a specific minimum pressure number, or as a ratio (like 4 times some pressure)? • Does the rule for oil transfer hose MAWP depend on the relief valve setting, or is it a standalone minimum regardless of system details? • Which choice best matches the typical regulatory style for hose design (simple minimum rating vs conditional formula)?

✅ Before You Answer

• Look up the exact language in 33 CFR 155 on hose assemblies used for oil transfer and identify whether it specifies a fixed minimum MAWP value. • Verify the approximate conversion between psi and kPa to see which options are numerically equivalent or obviously different. • Make sure you distinguish between requirements for relief valves and piping versus the specific requirement for hose MAWP — they are not always the same section or formula.

Question 1 of 27070

According to U.S. regulations what is the maximum allowable working pressure (MAWP) for each hose assembly used for transferring oil?

At least 600 psi (4.14 MPa)

At least four times the sum for the pressure of the relief valve setting

More than the maximum pump pressure when a relief valve is not installed

At least 1030 kPa gauge (approx. 150 psig)

Question 1 / 270705eccef9dbacbc34ba4d45c7c

Question 1 of 270705eccef9dbacbc34ba4d45c7c

According to U.S. regulations what is the maximum allowable working pressure (MAWP) for each hose assembly used for transferring oil?

Back

Question 1 of 27070

According to U.S. regulations what is the maximum allowable working pressure (MAWP) for each hose assembly used for transferring oil?