This Specification specified the design requirements for the layout of metallic piping such as carbon steel, alloy steel and stainless steel piping.
This Specification is applicable to the design for the layout of metallic piping such as carbon steel, alloy steel and stainless steel piping in the new, extended and renovated petrochemical engineering, not applicable to the design layout of nonmetallic piping and underground water supply and drainage piping.
Foreword i
1 Scope 1
2 Normative References 1
3 General Requirements 2
3.1 General Requirements on Piping Layout 2
3.2 Clear Height or Buried Depth of Piping 5
3.3 Piping Spacing 7
4 Piping Layout of Pipe Rack 7
4.1 General Requirements 7
4.2 Piping Layout 8
5 Piping Layout of Common Equipment 9
5.1 Piping Layout of Tower 9
5.2 Piping Layout of Reactor 9
5.3 Piping Layout of Tubular Heat Exchangers 10
5.4 Piping Layout of Reboiler 10
5.5 Piping Layout of Air Cooler 10
5.6 Piping Layout of Heating Furnace 11
5.7 Piping Layout of Vessel 11
5.8 Piping Layout of Pump 11
5.9 Piping Layout of Compressor 12
5.10 Piping Layout of Steam Turbine 13
6 Special Piping Layout 13
6.1 Liquified Hydrocarbon Piping Layout 13
6.2 Hydrogen Piping Layout 13
6.3 Oxygen Piping Layout 14
6.4 Vacuum Medium Piping Layout 14
6.5 Low-temperature Medium Piping Layout 14
6.6 Extreme-hazard Medium Piping Layout 15
6.7 Airflow Transmission Medium Piping Layout 15
7 Sampling Piping Layout 15
7.1 General Requirements 15
7.2 Sampling Pipe Layout 16
8 Relieving Piping Layout 16
8.1 Emptying and Purging Piping Layout 16
8.2 Pressure Relief Discharge Piping Layout 18
9 Synergic System Piping Layout 19
9.1 Steam Piping Layout 19
9.2 Condensate Piping Layout 20
9.3 Air Piping Layout 20
9.4 Nitrogen Piping Layout 21
9.5 Above-ground Water Piping Layout 21
10 Layout of Valve 22
10.1 General Requirements 22
10.2 Layout of Safety Valve 24
10.3 Layout of Pneumatic Control Valve 24
10.4 Layout of Check Valve 25
10.5 Layout of Pressure Reducing Valve 25
10.6 Layout of Drain Valve 26
11 Layout of Pipe Fittings and Accessories 26
11.1 Layout of Pipe Fittings 26
11.2 Layout of Flame Arrestor 27
11.3 Layout of Filter 27
11.4 Layout of Compensator 27
12 Layout of Instrument or Measuring Element on Piping 28
12.1 General Requirements 28
12.2 Layout of Flow Measuring Instrument 28
12.3 Layout of Pressure Measuring Instrument 29
12.4 Layout of Temperature Measuring Instrument 29
12.5 Layout of Level Measuring Instrument 30
13 Layout of Piping Support and Hanger 31
13.1 General Requirements 31
13.2 Layout of Piping Support and Hanger 33
Explanation of Wording 35
