5 Important Questions related to Piping Codes & Standard

1. What is the ASME code followed for design of piping systems in Process piping (Refineries
& Chemical Industries)?

(i) B 31.1
(ii) B 31.3
(iii) B 31.5
(iv) B 31.9
Answer (II)

2. Which American institute standard does piping engineer refer?
Answer: -

A. The American Petroleum institute (API).
B. The American Iron & Steel institute (AISI).
C. The American Society for Testing and materials (ASTM).
D. The American National standard institute (AISI).
E. The American welding society (AWS).
F. The American Water Works Association (AWWA).
G. The American Society for Mechanical Engineers (ASME).

3. What is the different ASME 31 code for pressure piping?
Answer: -

A. ASME B31.1 - Power piping.
B. ASME B31.2 - Fuel Gas Piping.
C. ASME B31.3 - Process piping.
D. ASME B31.4 - Pipeline Transportation system for liquid hydrocarbon & other liquid.
E. ASME B31.5 - Refrigeration Piping.
F. ASME B31.8 - Gas transmission & distribution piping system.
G. ASME B31.9 - Building services piping.
H. ASME B31.11 - Slurry transportation piping system.

4. What are the different sections of ASME code? Where these sections are reffered?
Answer: -

A. ASME section I : - Rules for construction of power boiler.
B. ASME Section II : - Materials.
Part A – Ferrous materials.
Part B – Non-Ferrous materials.
Part C – Specification for electrodes & filler wire.
Part D – Properties.
C. ASME Section IV : - Rules for construction of Heating Boiler.
D. ASME Section V : - Non- destructive Examination.
E. ASME Section VI : - Recommended rules for care & operation of heating boiler.
F. ASME Section VII : - Recommended guidelines for care of power boiler.
H. ASME Section VIII : - Rules for construction of pressure vessels. (Division I & II)
I. ASME Section IX : - Welding & Brazing qualification.

5. Which American standard is reffered for selection of following piping element?
A. Flanges B. Butt Welded fittings C. Gasket D. Socket & Threaded fittings
E. Valves F. Pipes.

Answer: -

A. Flanges :-

I. ASME B16.1 : - Cast iron pipes flanges & flanged fittings.
II. ASME B16.5 : - Carbon steel pipes flanges & flanged fittings. (Up to 24”)
III. ASME B16.47 : - Large Diameter steel flanges. (Above 24”)

B. Butt welded fittings :-

I. ASME B16.9 : - Steel butt welding fittings.
II. ASME B16.28 : - Butt-welded short radius elbows & returns bends.

C. Gasket :-

I. ASME B16.20 / API -601: - Metallic gaskets for pipe flanges- Spiral wound,
Octagonal ring Joint & Jacketed flanges.
II. ASME B16.21 : - Non metallic gasket.

D. Socket & Threaded fittings :-

I. ASME B16.11 : - Forged steel socket welding & threaded fittings.

E. Valves :-

I. ASME B16.10 : - Face to face & end to end dimension of valves.
II. ASME B16.34 : - Flanged & butt-welded ends steel valves (Pressure &Temperature ratings)
except Ball, Plug & Butter fly Valves.

F. Pipes :-

I. ASME B36.10 : - Welded & Seamless wrought iron pipes.
II. ASME B36.19 : - Stainless steel pipes.

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