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NIOEC-SP-50-04(1) DOCUMENT CODE NO. OF PAGES: 883PLAN/PRJ/SUB UNIT PHASE DISCIPLINE DOCUMENT TYPE SERIAL NO. REV. NO. DATE
NIOEC 000 EG PI SP 5004 A0 JUNE, 2007
NATIONAL IRANIAN OIL REFINING & DISTRIBUTION COMPANY
NATIONAL IRANIAN OIL ENGINEERING
& CONSTRUCTION COMPANY
NIOEC SPECIFICATION
FOR
PIPING MATERIAL
FIRST EDITION
JUNE , 2007
THIS SPECIFICATION IS THE PROPERTY OF NATIONAL IRANIAN OIL ENGINEERING & CONSTRUCTION COMPANY. IT IS CONFIDENTIAL AND ALL RIGHTS RESERVED TO THE OWNER. NEITHER WHOLE NOR ANY PART OF THIS DOCUMENT MAY BE DISCLOSED TO ANY THIRD PARTY, REPRODUCED, STORED IN ANY RETRIEVAL SYSTEM OR TRANSMITTED IN ANY FORM OR BY ANY MEANS WITHOUT THE PRIOR WRITTEN CONSENT OF THE NATIONAL IRANIAN OIL ENGINEERING & CONSTRUCTION COMPANY
JUNE, 2007 NIOEC-SP-50-04(1)
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NOTES: 1) THIS SHEET IS A RECORD OF ALL REVISIONS TO THIS SPECIFICATION.
2) REMARKS RELATED TO EACH REVISION SHOW A BRIEF DESCRIPTION. THESE REMARKS SHALL BE INTERPRETED IN CONJUNCTION WITH THE REVISED TEXT MARKED BY REVISION NUMBERS.
3) WHEN APPROVED EACH REVISION SHALL BE CONSIDERED AS A PART OF THE ORIGINAL DOCUMENT.
4) NUMBER OF PAGES EXCLUDES THIS SHEET AND THE COVER SHEET.
5 4 3 2 1 JUNE, 2007 M.R.FARZAM M.R.FARZAM M.A.A.SAJEDI
0 MAY, 2006 S. GHASSEMI M.R.FARZAM M.R.FARZAM M.A.A.SAJEDI
REV. DATE PREPARED CHECKED APPROVED AUTHORIZED
JUNE , 2007 NIOEC-SP-50-04(1)
CONTENTS: PAGE NO. 1. SCOPE .........................................................................................................................................2 2. REFERENCES.............................................................................................................................2 3. UNITS ..........................................................................................................................................4 4. DEFINITION AND TERMINOLOGY .......................................................................................4 5. ABBREVIATIONS......................................................................................................................4 6. GENERAL NOTES PERTAINING TO ALL LINE CLASSES .................................................5
6.1 ITEM DESCRIPTIONS.......................................................................................................5 6.2 MANUFACTURERS REFERENCE...................................................................................5 6.3 DESIGN CONDITIONS......................................................................................................5 6.4 MISCELLANEOUS CONNECTIONS ...............................................................................6 6.5 JOINING OF PIPE AND SWAGES....................................................................................6 6.6 BOLT MEASUREMENT....................................................................................................6 6.7 MATERIAL IDENTIFICATION ........................................................................................6 6.8 COLOR CODING................................................................................................................7 6.9 MATERIAL NOT COVERED BY PIPING MATERIAL SPECIFICATIONS .................7 6.10 UNDERGROUND PROTECTION .....................................................................................7 6.11 FABRICATION SPECIFICATION ....................................................................................7 6.12 RUBBER LINING FOR PROCESS EQUIPMENT AND PIPING ....................................7 6.13 GLASS-FIBER REINFORCED EPOXY (GRE) PIPE AND FITTING .............................7 6.14 CEMENT LINING...............................................................................................................7
7. NOTES PERTAINING TO SPECIFIC LINE CLASSES ...........................................................7 7.1 VALVES ..............................................................................................................................7 7.2 PIPE......................................................................................................................................8 7.3 FITTINGS ............................................................................................................................8 7.4 FLANGES............................................................................................................................9 7.5 FLANGE FINISH ................................................................................................................9 7.6 BRANCHES.........................................................................................................................9 7.7 LINE REDUCTIONS ..........................................................................................................9 7.8 SEAL-WELDING..............................................................................................................10 7.9 PIPE BENDS......................................................................................................................10 7.10 THREAD COMPOUND....................................................................................................10 7.11 GAUGE VALVE SELECTION CHART..........................................................................11 7.12 GASKETS..........................................................................................................................11
8. IDENTIFICATION OF PIPING CLASSES..............................................................................11 9. NIOEC LINE CLASS INDEX...................................................................................................13 10. BRANCH TABLE .....................................................................................................................17 11. LINE CLASSES.........................................................................................................................27
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1. SCOPE
This NIOEC Specification contains piping classes primarily developed for petroleum refineries installed onshore. It is also intended for use in onshore exploration and production facilities as well as booster stations as far as applicable. Facilities covered by this Specification are all within the property limits of facilities engaged in processing or handling of chemicals, petroleum, or related products, as defined in ASME B31.3 clause 300.1.
2. REFERENCES
2.1 Throughout this Specification the following dated and undated standards/ codes are referred to. These referenced documents shall, to the extent specified herein, form a part of this Specification. For undated references, the latest edition of the referenced document (including any supplements and amendments) applies. For dated references, the edition cited applies. The applicability of changes in dated references that occur after the cited date shall mutually be agreed upon by NIOEC and the Vendor/Contractor.
ASME (AMERICAN SOCIETY OF MECHANICAL ENGINEERS)
B1.1 Unified Inch Screw Threads (UN and UNR Thread Form) B1.20.1 Pipe Threads, General Purpose (Inch) B16.10 Face to Face and End to End Dimensions of Valves B16.11 Forged Steel Fittings, Socket Welding and Threaded B16.20 Metallic Gaskets for Pipe Flanges-Ring Joint, Spiral-Wound, and
Jacketed B16.21 Nonmetallic Flat Gaskets for Pipe Flanges B16.25 Buttwelding Ends B16.28 Wrought Steel Buttwelding Short Radius Elbows and Returns B16.3 Malleable Iron Threaded Fittings, Class 150 and 300 B16.34 Valves-Flanged, Threaded, and Welding End B16.36 Orifice Flanges B16.42 Ductile Iron Pipe Flanges and Flanged Fittings (Class 150 and 300) B16.47 Large Diameter Steel Flanges NPS 26 Through NPS 60 B16.5 Pipe Flanges and Flanged fittings B16.9 Factory-Made Wrought Steel Buttwelding Fitting B18.2.2 Square and Hex Nuts (Inch Series) B31.1 Power Piping B31.3 Process piping (edition 2002) B36.10M Welded and Seamless Wrought Steel Pipe B36.19M Stainless Steel Pipe B46.1 Surface Texture (Surface Roughness, Waviness and Lay) PVBC section I Rules for Construction of Power Boilers
API (AMERICAN PETROLEUM INSTITUTE)
API-598 Valve Inspection and Testing API-599 Metal Plug Valves-Flanged and Welding Ends API-600 Steel Gate Valves, Flanged and Buttwelding Ends API-601 Metallic Gasket for Raised-Face, Pipe Flanges and Flanged
Connections (Double Jacketed Corrugated and Spiral-wound)
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API-602 Compact Steel Gate Valves-Flanged, Threaded, Welding and Extended-Body Ends
API-609 Butterfly valves, Lug-Type and Wafer-Type API-6D Pipeline Valves (Gate, Plug, Ball and Check-Valves) API-941 Steels for Hydrogen Service at Elevated Temperature and Pressure in
Petroleum Refineries and Petrochemical Plants.
BS (BRITISH STANDARD INSTITUTION)
BS-5146 Specification for Inspection and Test of Steel Valves for the
petroleum, petrochemical and allied inspection BS-5352 Steel Wedge Gate, Globe and Check Valves BS-5351 Steel Ball Valves
MSS (Manufacturers Standardization Society of the Valve and Fittings Industry Inc)
SP-43 Wrought Stainless Steel Butt welding Fittings SP-44 Steel pipe Line Flanges SP-80 Bronze Gate, Globe, Angle and Check Valves SP-83 Steel Pipe Unions, Socket-welding and Threaded
ISO (International Organization for Standardization)
160 Asbestos-Cement Pressure Pipes and Joints 2531 Ductile Iron Pipes, Fittings and accessories for pressure pipelines
NIOEC-SP (NIOEC Specification) NIOEC-SP-00-10 NIOEC Specification for Units NIOEC-SP-50-01 NIOEC Specification for General Piping, Process and Utility Design
Equipment Layout and Drawing Procedure. NIOEC-SP-50-05 NIOEC Specification for Field Pressure Testing NIOEC-SP-50-09 NIOEC Specification for Piping Material Purchase Pipe NIOEC-SP-50-10 NIOEC Specification for Piping Material Purchase Flanges NIOEC-SP-50-11 NIOEC Specification for Piping Material Purchase Fitting NIOEC-SP-50-17 NIOEC Specification for Protection of Underground Steel Pipe NIOEC-SP-50-18 NIOEC Specification for Piping Material Purchase Valves NIOEC-SP-50-27 NIOEC Specification for Identification of Piping Material NIOEC-SP-80-01 NIOEC Specification for Insulation NIOEC-SP-90-02 NIOEC Specification for Welding Shop and/or Field Fabricated
Piping
IPS (Iranian Petroleum Standard)
IPS-E-TP-740 Engineering Standard for Corrosion Consideration in Material
Selection IPS-E-PI-221 Engineering Standard for Piping Material Selection
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NACE (National Association of Corrosion Engineers)
Paper No. 67 3. UNITS
International system of units (SI) shall be used in accordance with NIOEC-SP-00-10, unless otherwise specified.
4. DEFINITION AND TERMINOLOGY
- CA: Corrosion allowance.
- Design Limits: Pressure/temperature limits given in piping classes.
- time to supervise execution of works.
- Piping Class Index: A term which identifies the main characteristics of all piping classes. (e.g. materials for pipe, valve trim and gaskets).
- Service Index: A term which identifies which piping class to select for the service
- Employer: National Iranian Oil Engineering and Construction Company (NIOEC)
- Engineer: The Employer's representative appointed by the Employer from time to time to supervise execution of works.
5. ABBREVIATIONS
BTV Butterfly valve DRJ Dresser coupling EH Exhaust head FG Sight glass FRV Freeze proof valve (Kelly type) HC Hose connection IF Insulation bolt & gasket INJ Injection nozzle LKC Lock & locking chain ME Duplex type strainer MOV Motor operated valve PSE Rupture disc SCL Sample cooler SN Spray nozzle SRT “T” type strainer SRY “Y” type strainer SXV Stop-check valve
For more information about abbreviations see NIOEC-SD-0101-1/1-A1
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6. GENERAL NOTES PERTAINING TO ALL LINE CLASSES
6.1 ITEM DESCRIPTIONS
6.1.1 The ITEM DESCRIPTION shown in the individual Line Classes are abbreviated and will be used for Purchase.
6.1.2 Full size and reducing size like components shall have the different item code
number.
6.2 MANUFACTURERS REFERENCE
6.2.1 Items specified or referenced by manufacturer and figure number are not intended to exclude equal items offered by other manufacturers. Products of reputable manufacturers and of comparable type, quality and characteristics may be submitted for NIOEC Engineer's approval.
6.3 DESIGN CONDITIONS
6.3.1 Allowable stress for the materials specifications contained in the piping class have been established inline with ASME B31.3 para. 302.3
6.3.2 For all materials the selection of pipe wall thickness is based on allowable internal
pressure calculations for seamless pipe only. Consequently where welded pipe is used, a weld joint factor of 1 shall be guaranteed.
6.3.3 In accordance with ASME B31.3 para. 302.2.2, not more than 87.5% of nominal
wall thickness of corresponding seamless pipe has been used in calculation for butt welding fitting.
6.3.4 Unless otherwise specified in piping material selection, corrosion considerations
shall be as per IPS-E-TP-740.
6.3.5 In consultation with the process designer or process Engineer, the materials Engineer shall establish the preferred materials selection based on the process requirements such as medium, pressure, temperature, flow and the environment of the process facility. Design life and cost considerations shall also be taken into account in this respect.
6.3.6 Pressure and temperature design criteria shall be in accordance with NIOEC
Specification NIOEC-SP-50-01.
6.3.7 Unless otherwise noted, all pressures and temperatures referred to are design conditions.
6.3.8 Selection of steels exposed to hydrogen service shall be in accordance with API-941.
“Hydrogen Service” shall mean any service with hydrogen partial pressure greater than 5.1 bara.
6.3.9 Corrosion rates for steels subject to a hydrogen sulfide environment shall be in
accordance with “Computer correlations to Estimate Corrosion of Steels by Refinery Streams Containing Hydrogen Sulfide,” by Cooper and Gorman; NACE Paper No.67.
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6.3.10 Corrosion rates for steels subject to sulfur bearing hydrocarbons shall be in
accordance with “High-Temperature Sulfuric Corrosion in Hydrogen-Free Environment.”
6.3.11 When reference is made to “Sulfuric Acid Chart” or “Caustic soda service Chart”, it
is intended that these be the charts shown in the corrosion Data Survey published by the NACE.
6.3.12 “Foul condensate” is defined as all process streams which contain liquid water and at
least 10 ppm of H2S.
6.3.13 This specification may be used with other sections of the ASME B31.3 Code, and/or Section I of the ASME Code, after reviewing for compliance with the applicable Sections and modifying as necessary.
6.3.14 Nominal wall thicknesses and outside diameter of pipes, as specified in piping
classes, are in accordance with ASME B36.10M and ASME B36.19M.
6.4 MISCELLANEOUS CONNECTIONS
6.4.1 Piping for temperature, vent, drain and sample connections, and level instruments, shall conform to NIOEC Specification NIOEC-SP-50-01.
6.5 JOINING OF PIPE AND SWAGES
6.5.1 2” and larger swage nipples shall be joined to pipe by buttwelding. Socket-weld couplings shall be used for 1-1/2” and smaller sizes. The same shall apply when joining lengths of pipe.
6.5.2 The above does not apply to: (a) Galvanized material (c) Thread end pipe (b) Thread end swages (d) Where otherwise noted on drawings
6.6 BOLT MEASUREMENT
6.6.1 Machine bolt length shall be measured from the bearing surface of the head to the extreme point.
6.6.2 Stud-bolt length shall be the effective thread length.
6.7 MATERIAL IDENTIFICATION
6.7.1 Valves and Specialty Items shall be supplied with a metal tag attached, bearing the applicable Item Code Number.
6.7.2 Where valves require locking devices the NIOEC shall provide tagging in
accordance with the Valve Specification, NIOEC-SP-50-18, as applicable. Tags for locked open valves shall be stamped "LOCK-OPEN" and painted green. Tags for locked close valves shall be stamped "LOCK-CLOSED" and painted red.
6.7.3 The materials shall be identified according to NIOEC-SP-50-27.
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6.8 COLOR CODING
6.8.1 The materials shall be color according to NIOEC-SP-50-27.
6.9 MATERIAL NOT COVERED BY PIPING MATERIAL SPECIFICATIONS
6.9.1 Special piping items are referred to as SP's (Specialty Items). They are assigned an Item Code Number, listed in the specialty Item List and on P&I Diagrams.
6.10 UNDERGROUND PROTECTION
6.10.1 Buried steel piping shall be externally protected in accordance with Specification NIOEC-SP-50-17.
6.11 FABRICATION SPECIFICATION
6.11.1 For Heat Treatment, Radiography, etc., see NIOEC-SP-90-2.
6.12 RUBBER LINING FOR PROCESS EQUIPMENT AND PIPING
6.12.1 The general requirements for the purchase and related testing, inspection, transportation and storage of rubber-lined process equipment and piping shall be according to Appendix H of IPS standard IPS-E-PI-221.
6.13 GLASS-FIBER REINFORCED EPOXY (GRE) PIPE AND FITTING
6.13.1 The general requirements for the purchase, inspection and transportation of pipes, fittings and flanges made from GRE shall be in accordance with Appendix J of IPS standard IPS-E-PI-221.
6.14 CEMENT LINING
6.14.1 The general requirements for the design, application, inspection, installation and testing of pipes to be lined with cement mortar, shall be in accordance with appendix I of IPS standard IPS-E-PI-221.
7. NOTES PERTAINING TO SPECIFIC LINE CLASSES
The following notes are general instruction and minimum requirements for individual line classes.
7.1 VALVES
7.1.1 Valves shall conform to Specification NIOEC-SP-50-18.
7.1.2 Gear operators are required for gate and globe valves in sizes shown below. All such valves shall have individual item code number.
RATING GATE GLOBE
125# 18" and larger - 150# 18" and larger - 300# 14" and larger 8"
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RATING GATE GLOBE 600# 12" and larger 6" 900# 8" and larger 4" and 6" 1500# 6" and larger 4" and 6" 2500# 6" and larger 4" and 6"
7.1.3 All check valves may be mounted in the vertical (upward flow) or horizontal
position unless limited by the item description in the individual Line Class.
7.1.4 Type of check valves shall be individually investigated for reciprocating compressor discharge Lines.
7.1.5 Other types of valves (Ball, Diaphragms, Butterfly, etc.) may be considered for
special applications or services. 7.1.6 Flanged valves shall be in place of socket-weld or screwed valves in 1" and 1-1/2"
sizes when mounted directly to flanged vessel, vent, drain and level control connection. Rating of valve(s) must match nozzle connection.
7.1.7 Weld end valves shall be specified with bore to match fittings. 7.1.8 Valves trim shall be as specified in the individual line classes except where preferred
trims, such as Monel; are indicated on drawings. Substitutions shall be subject to NIOEC approval.
7.2 PIPE
7.2.1 Pipe shall conform to Specification NIOEC-SP-50-09. 7.2.2 Pipe wall thickness calculation shall be based on the design pressure and temperature
conditions of the individual line. The same shall apply to reinforcing. However, the specified wall thicknesses are the minimum.
7.2.3 Pipe wall thickness indicated is that suitable for P/T line conditions, if higher
schedule is needed it is shown on each line in P & ID.
7.2.4 Corrosion allowances different from those shown in the Line Classes shall be indicated on the P&I Diagrams.
7.2.5 Electric Resistance Welded (ERW) and Electric Fusion Welded (EFW)steel pipe
could be used in place of seamless pipe of equal grade in terminals projects & pipeline plants only as per requirements outlined in NIOEC-SP-50-09.
7.3 FITTINGS
7.3.1 Fittings shall conform to Specification NIOEC-SP-50-11. 7.3.2 Lap-joint stud-Ends shall have the same facing as specified for flanges in the
individual Line Class. 7.3.3 When weld fitting thickness is specified "Wall thickness to match pipe," fittings of
commercially available weights shall be used, even though wall thickness of such
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fittings may be slightly greater than the pipe. Ends of fittings shall be taper bored if thickness exceeds pipe wall by more than 1/16".
7.3.4 Butt-weld seamless elbow ASME B16.9 shall be used up to and including 24" size.
26″ and above miters, unless other specified, shall be as follows: - 45°turns-Two piece-one weld - 90°turns-Three piece-two weld 1-1/2 times diameter radius Notes: Four piece-Three Weld Miters shall be used only where required by space limitation or process flow conditions.
7.3.5 Use 3000# screwed fittings (not seal-welded) for open end vent and drain piping
downstream of block valves.
7.4 FLANGES
7.4.1 Flanges shall conform to Specification NIOEC-SP-50-10. 7.4.2 Weld-Neck orifice flanges shall be specified with bore to match I.D. of pipe. 7.4.3 Slip-on flanges may be used in hydrogen service, subject to Engineer's approval. In
such case, the enclosed space between the O.D. of the pipe and the bore of the flange shall be vented by drilling a 3 mm diameter hole in the flange hub.
7.5 FLANGE FINISH
The flange face shall be finished with smooth 3.1 Ra (micro-meter) in accordance with ASME B46.1 as follows:
7.5.1 For the machining of flange face, a continuous spiral groove generated by a 0.8mm radius round nosed tool at a feed of 0.30mm to 0.37mm per revolution shall be applied and tolerance of roughness shall be from 3.1 Ra to 6.3 Ra.
7.5.2 For the inspection of flange face, standard compares on blocks shall be prepared by flange manufacturer and to check the roughness of machining surface, standard comparison block shall be used to compare.
7.6 BRANCHES
7.6.1 Branch connections shall be made in accordance with the attached tables, unless otherwise noted on the individual line.
7.6.2 Reinforcement requirements for 90 degree pipe to pipe branch connections have
been checked against the design limits of the piping class. The check calculations were performed in accordance with ASME B31.3 para. 304.3.3.
7.7 LINE REDUCTIONS
7.7.1 When fittings 1” and smaller are screwed or socket-welded and 1-1/2 and larger fittings are butt-welded, use the following: - Small end 1” and smaller-swage nipple - Small end 1-1/2” and larger-weld reducer
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7.7.2 B. When fittings 1-1/2” and smaller are screwed or socket-welded and 2” and larger fittings are butt- welded, use the following: - Small end 1-1/2” and smaller - swage nipple - Small end 2” and larger - weld reducer
7.7.3 For large O.D. sizes consider stub-in connections into weld-caps in place of
reducers. 7.7.4 Swage nipples and weld reducers are subject to size limitations.
7.8 SEAL-WELDING
7.8.1 Screwed pipe joints shall be “seal-welded” where called for in individual Line Classes, except normally the following shall not be “seal-welded”:
(1) Screwed ends of control valves or relief valves. (2) Screwed ends of gage glasses and level alarms. (3) Pressure gages. (4) Union nuts. (5) Drain valve outlet plugs or caps. (6) Hydrostatic vent plugs or caps. (7) Steam traps. (8) Screwed end ball and plug valves. (9) Tubing connections. (10) Open end vent or drain piping downstream of the last block valve (Use 3000#
FS screwed fittings as per 7.3.5). (11) Connections to pumps or other mechanical equipment.
7.8.2 All threads shall be clean cut to full depth. Joint shall be made up wrench tight
without the use of thread compound. 7.8.3 Seal welding shall cover the exposed pipe threads at screwed fittings but shall not
exceed 10 mm fillet. 7.8.4 Where deemed necessary, screwed plug valves may be seal-welded, however, care
must be exercised to avoid excessive heat, resulting in valve distortion. 7.8.5 Gate and globe valves shall be in a lightly closed position while being seal-welded or
socket-welded.
7.9 PIPE BENDS
7.9.1 Bends (seamless pipe only) may be used in place of screwed or socket-weld fittings unless otherwise indicated in the individual Line Class.
7.9.2 Bend radius of pipe shall be a minimum of 5 times the nominal diameter.
7.10 THREAD COMPOUND
7.10.1 Thread compound requirements, unless otherwise specified in the individual Line Class, shall conform to the following:
Pipe Threads
10
JUNE , 2007 NIOEC-SP-50-04(1)
To 232 ºC Teflon Tape Above 232ºC Armite No. 250 “Led-plate” Bolt Threads For all lines 177ºC and higher Armite No. 250 “Led-plate” and for Line Classes 600# and higher
7.10.2 Do not thread compound on joints to be “seal welded”.
7.11 GAUGE VALVE SELECTION CHART
Gauge valves shall be in accordance with NIOEC-SP-70-2.
7.12 GASKETS
7.12.1 Gaskets shall be asbestos free material.
7.12.2 Spiral-wound gaskets on RFS flanged connections of reciprocating compressors must have internal retaining ring.
8. IDENTIFICATION OF PIPING CLASSES
Each piping class is identified by minimum four characters. The first through forth characters indicate material group, pressure rating of flange (ASME class), fluid service and corrosion allowance respectively. For some classes the fifth character is also provided to show special requirements. Example: Piping class A1A1(U) is compiled from: A for material "Carbon Steel" 1 for ASME rating 150 A for fluid service "Hydrocarbon without hydrogen" 1 for corrosion allowance 1.0 (U) for special requirements "Under ground (Coat and Wrap)" The following table describes characters which are used in identification of piping classes.
11
JUNE , 2007 NIOEC-SP-50-04(1)
1ST CHARACTER MATERIAL
2ND CHARACTER FLANGE CLASS
3RD CHARACTER FLUID SERVICES
4TH CHARACTER CORROSION ALLOWANCE
5TH CHARACTER SPECIAL REQUIREMENTS
A CARBON STEEL
B KILLED CARBON STEEL
C KILLED C.S. LOW TEMP.
D DUCTILE IRON
E CARBON+ 1/2 MO
F 1-1/4% CR- 1/2% MO
G 2-1/4% CR- 1% MO
H 5% CR-1/2%MO
I 9%CR- 1%MO
J 12% CR
K TYPE 304
L TYPE 304L
M TYPE 316
N TYPE 316L
O TYPE 316H
P TYPE 321
Q TYPE 321H
R TYPE 347
S HASTELLOY C 273
T MONEL
U AL-AL ALLOY
V CU-CU ALLOY
W NI-NI ALLOY
X NON METAL (POLYMER )
Y NON METAL (NON-POLYMER )
Z SPECIAL MATERIALS
0 125
1 150
2 250
3 300
4 400
5 SPECIAL DESIGN
6 600
7 900
8 1500
9 2500
A HYDROCARBON WITHOUT HYDROGEN
B HYDROCARBONS WITH HYDROGEN
C HYDROCARBON WITH H2S AND WATER
D ASPHALT / HEAVY HYDROCARBONS
E AMINE
F CHEMICALS
G HYDROGEN (LIMITED TO 5.1 BARG PARTIAL PRESSURE)
H HYDROGEN WITH / WITHOUT HYDROCARBONS (ABOVE 5.1 BARG PARTIAL PRESSURE)
K SEWERS (OILY, NON-OILY, SANITARY)
L WATERS
M WATERS (AS PER ASME B31.1)
N TEMPERED WATER
O NON ORGANIC
P SULFUR
S STEAM & CONDENSATE
T STEAM &CONDENSATE (AS PER ASME B 31.1 )
V AIR
Y STEAM TRACING
Z STEAM JACKETING
0 NONE
1 1-1.6 MM
2 2-2.6 MM
3 3-3.6 MM
4 4-4.6 MM
5 5-5.6 MM
6 6-6.6 MM
C CEMENT LINING
F FLAT FACE
G GALVANIZED
J JACKETED OR COATED
L POLYMER LINING
N NACE
R RING JOINT
U UNDERGROUND (COAT & WRAP)
V (GALV. + C & W )
W ABOVE GROUND FIRE WATER
Y UNDER GROUND FIRE WATER
12
JUNE , 2007 NIOEC-SP-50-04(1)
9. NIOEC LINE CLASS INDEX
NIOC LINE
CLASS
NIOEC LINE
CLASS MATERIAL FLANGE
RATING SERVICE CORROSION ALLOWANCE
(MM)
TEMP. LIMIT (°C) REMARKS BRANCH
TABLE
11V(*) A0F0(L) CS, TEFLON LINNED CL. 125 FFS SULFURIC ACID ZERO UP TO 140 B
A A1A1 CS CL.150 RFS HYDROCARBONS.CAUSTIC (TO65C OPR), FUEL OIL, FUEL GAS 1.3 -29 TO 400 A
LA A1A1(U) CS(C&W) CL.150 RFS COLD SLOP, SLUDGE, 1.0 -29 TO 65 E
A1A2 A1A3 CS CL.150 RFS GENERAL PROCESS (EXCLUDING HYDROGEN SERVICE) 3.2 -29 TO 371 A
AV A1A6 CS CL.150 RFS HYDROCARBONS 6.4 -29 TO 290 D
AF A1C3 CS CL.150 RFS FOUL CONDENSATE WITH OR WITHOUT HYDROCARBONS 3.2 -29 TO 230 A
AM/B A1D1 CS CL.150 RFS ASPHALT 1.3 -29 TO 315 H
A A1E1 CS CL.150 RFS AMINE(TO 95C OPR). 1.3 -29 TO 400 A
AB A1E3 CS CL.150 RFS AMINE 3.2 95 TO 150 A
L A1F1 CS CL.150 RFS LIME/ASH SOLUTION 1.0 -29 TO 280 E
AK A1F3 CS CL.150 RFS 93-98% SULFURIC ACID 3.2 -29 TO 65 C
A A1G1 CS CL.150 RFS HYDROGEN (LIMITED TO 5.1 BARG OR BARG PARTIAL PRESSURE). 1.3 -29 TO 400 A
AH A1H1 CS CL.150 RFS HYDROGEN(ABOVE 5.1 BARG)WITH OR WITHOUT HYDROCARBONS 1.0 -29 TO 400 A
A1B2 A1H3 CS CL. 150 RFS HYDROGEN RICH HYDROCARBONS/HYDROGEN 3.2 -29 TO 371 A
K A1K1(U) CS(C&W) CL.150 RFS CAUSTIC SODA SEWER, OILY/NON OILY SEWER, CHEMICAL SEWER(UNDERGROUND)
1.0 -29 TO 60 -
61C(*) A1L0(C) CS (CEMENT LINNED) CL. 150 FFS COOLING SEA WATER ZERO -10 TO 75 I
61D(*) A1L0(C&U) CS (CEMENT LINNED+C&W) CL. 150 FFS COOLING SEA WATER
(UNDER GROUND) ZERO -10 TO 75 I
L A1L1 CS CL.150 RFS PLANT AND COOLING WATER, LP BFW. 1.0 -29 TO 280 E
LD A1L1(G) GALV. STEEL CL.150 RFS DRINKING WATER (ABOVE GROUND) 1.0 -29 TO 65 F
LA/1 A1L1(U) CS(C&W) CL.150 RFS TEMPERED WATER(UNDERGROUND) 1.3 66 TO 100 E
LD/1 A1L1(V) GALV. STEEL (C&W) CL.150 RFS DRINKING WATER. (UNDERGROUND) 1.0 -29 TO 65 G
LF A1L1(W) CS CL.150 RFS FIRE WATER(ABOVE GROUND) 1.0 -29 TO 66 E
LF/1 A1L1(Y) CS(C&W) CL.150 RFS FIRE WATER (UNDERGROUND) 1.0 -29 TO 66 E
LAA A1M1 CS CL.150 RFS BFW/BDN 1.3 -29 TO 260 ASME B31.1 A
LA A1N1(U) CS(C&W) CL.150 RFS RAW/TREATED/STRIPPED PLANT& COOLING WATER(UNDERGROUND) 1.0 -29 TO 65 E
A A1O1 CS CL.150 RFS NITROGEN 1.3 -29 TO 400 A
AM A1P1 CS CL.150 RFS LIQUID SULFUR. 1.0 -29 TO 315 H
L A1S1 CS CL.150 RFS LP STEAM, LP COND 1.0 -29 TO 280 E
LAA A1T1 CS CL.150 RFS LP STEAM, LP COND. 1.3 -29 TO 260 ASME B31.1 A
L A1V1 CS CL.150 RFS UTILITY AIR, INSTRUMENT AIR (4”& LARGER) 1.0 -29 TO 280 E
LD A1V1(G) GALV. STEEL CL.150 RFS INST.AIR(3”& SMALLER) 1.0 -29 TO 65 F
Y A1Y1 CS CL.150 RFS STEAM TRACING(LP STEAM) 1.0 -29 TO 260 A
AM/2 A1Z1 CS CL.150 RFS JACKETED STEAM (LP STEAM) 1.0 -29 TO 260 H
C A3A1 CS CL.300 RFS HYDROCARBONS, CAUSTIC, FUEL OIL 1.0 -29 TO 400 B
A2A2 A3A3 CS CL.300 RFS GENERAL PROCESS (EXCLUDING HYDROGEN SERVICE) 3.2 -29 TO 427 B
13
JUNE , 2007 NIOEC-SP-50-04(1)
NIOC LINE
CLASS
NIOEC LINE
CLASS MATERIAL FLANGE
RATING SERVICE CORROSION ALLOWANCE
(MM)
TEMP. LIMIT (°C) REMARKS BRANCH
TABLE
13E(*) A3A4 CS CL. 300 RFS HYDROCARBON 4.5 -10 TO 400 B
AM/A A3D1 CS CL.300 RFS HEAVY HYDROCARBONS 1.3 -29 TO 315 H
C A3E1 CS CL.300 RFS AMINE 1.0 -29 TO 400 B
CB A3E3 CS CL.300 RFS AMINE 3.2 95 TO 150 B
CK A3F3 CS CL.300 RFS 93-98% SULFURIC ACID 3.2 -29 TO 65 C
C A3G1 CS CL.300 RFS HYDROGEN(LIMITED TO 5.1 BARG OR BARG PARTIAL PRESSURE) 1.0 -29 TO 400 B
CH A3H1 CS CL.300 RFS HYDROGEN(ABOVE 5.1 BARG OR BARG PARTIAL PRESSURE) WITH OR WITHOUT HYDROCARBONS
1.0 -29 TO 400 B
A2B2 A3H3 CS CL.300 RFS HYDROGEN RICH HYDROCARBONS/HYDROGEN 3.2 -29 TO 371 B
R A3L1 CS CL.300 RFS MP BFW 1.0 -29 TO 382 B
RA A3M1 CS CL.300 RFS MP BFW 1.0 -29 TO 382 ASME B31.1 B
13N(*) A3P1 CS CL. 300 RFS LIQUID SULFUR 1.3 -10 TO 400 B
R A3S1 CS CL.300 RFS MP STEAM, HP CONDENSATE 1.0 -29 TO 382 B
RA A3T1 CS CL.300 RFS MP STEAM, HP CONDENSATE 1.0 -29 TO 382 ASME B31.1 B
Z A3Y1 CS CL.300 RFS STEAM TRACING(MP STEAM) 1.0 -29 TO 382 A
AM/1 A3Z1 CS CL.300 RFS JACKETED STEAM (MP STEAM) 1.0 -29 TO 382 H
A4A1 A6A1 CS CL.600 RFS GENRAL PROCESS (EXCLUDING HYDROGEN SERVICE) 1.6 -29 TO 427 B
F A6B1 CS CL.600 RFS HYDROCARBONS WITH HYDROGEN 1.0 -29 TO 400 B
F A6G1 CS CL.600 RFS HYDROGEN (TO 5.1 BARG OR BARG PARTIAL PRESSURE) 1.0 -29 TO 400 B
15D(*) A6H3 CS CL. 600 RFS HYDROGEN (ABOVE 5 BARG) WITH OR WITHOUT HYDROCARBONS 3.2 -10 TO 400 B
S A6L1 CS CL.600 RFS HP BFW 1.0 -29 TO 400 B
S/1 A6M1 CS CL. 600 RFS HP BFW 1.6 -29 TO 400 ASME B31.1 A
S A6S1 CS CL.600 RFS HP STEAM 1.0 -29 TO 400 B
S/1 A6T1 CS CL. 600 RFS HP STEAM, HP CONDENSATE 1.6 -29 TO 400 ASME B31.1 A
HH A8F1(R) CS CL.1500 RJ CHEMICAL INJECTIONS 1.0 -29 TO 400 B
HH A8H1(R) CS CL.1500 RJ HYDROGEN(ABOVE 5.1 BARG) WITH OR WITHOUT HYDROCARBONS 1.0 -29 TO 400 B
11J(*) B1A4 KCS CL. 150 RFS SOUR SERVICE 4.5 -10 TO 350 B
11H(*) B1A4(N) KCS CL. 150 RFS WET SOUR SERVICE, CAUSTIC 4.5 -29 TO 400 NACE B
11H(*) B1E4(N) KCS CL. 150 RFS AMINE 4.5 -10 TO 400 NACE B
13P(*) B3A3(N) KCS CL. 300 RFS WET SOUR SERVICE, CAUSTIC 3.2 -10 TO 400 NACE B
13P(*) B3H3(N) KCS CL. 300 RFS HYDROGEN RICH HYDROCARBONS 3.2 -10 TO 400 NACE B
15E(*) B6A1 KCS CL. 600 RFS HYDROCARBONS 1.5 -10 TO 400 B
15F(*) B6A3(N) KCS CL. 600 RFS WET SOUR SERVICES 3.2 -10 TO 400 NACE B
B4B2 B6H3 KCS CL.600 RFS HYDROGEN RICH HYDROCARBONS/HYDROGEN 3.2 -29 TO 371 B
15F(*) B6L3(N) KCS CL. 600 RFS SOUR WATER 3.2 -10 TO 400 NACE B
B6A1 B8A1 KILLED CS CL.1500 RFS GENERAL PROCESS (EXCLUDING HYDROGEN SERVICE) 1.6 -29 TO 427 B
17B(*) B8A3(N) KCS CL. 1500 RFS SOUR GAS, SOUR OIL MULTIPHASE 3.2 +10 TO 400 B
B6B2 B8H3 KILLED CS CL.1500 RFS HYDROGEN RICH HYDROCARBONS/HYDROGEN 3.2 -29 TO 371 B
B5A2 B9A3 KILLED CS CL.900 RFS GENERAL PROCESS (EXCLUDING HYDROGEN SERVICE) 3.2 -29 TO 427 B
14
JUNE , 2007 NIOEC-SP-50-04(1)
NIOC LINE
CLASS
NIOEC LINE
CLASS MATERIAL FLANGE
RATING SERVICE CORROSION ALLOWANCE
(MM)
TEMP. LIMIT (°C) REMARKS BRANCH
TABLE
B5B2 B9H3 KILLED CS CL.900 RFS HYDROGEN RICH HYDROCARBONS/HYDROGEN 3.2 -29 TO 371 B
B7C2 B9H3(R) KILLED CS CL.2500 RJ HYDROGEN RICH HYDROCARBONS/HYDROGEN 3.2 -29 TO 371 B
K/1 D1K0 DUCTILE IRON CL.150 SANITARY WATER SEWERS. (UNDERGROUND) ZERO 60 -
K/2 D1L0(U) DUCTILE IRON CL.150 DESALTER WASTE WATER(UNDERGROUND) ZERO -29 TO 89 -
LD D1L1(J) DUCTILE IRON(C) CL.150 RFS DRINKING WATER (ABOVE GROUND) 1.0 -29 TO 65 F
LD/1 D1L1(U) DUCT. IRON (C&W) CL.150 RFS DRINKING WATER. (UNDERGROUND) 1.0 -29 TO 65 G
23F(*) E3H3 A335 GR P1 CL 300 RFS HYDROGEN 3.2 -10 TO 450 D
25F(*) E6H3 A335 GR P1 CL 600 RFS HYDROGEN 3.2 -10 TO 450 B
E2B1 F3H1 1-1/4CR-0.5MO CL.300 RFS HYDROGEN RICH HYDROCARBON/ HYDROGEN (ABOVE 5.1 BARG) 1.6 -29 TO 551 B
E2B2 F3H3 1-1/4CR-0.5MO CL.300 RFS HYDROGEN RICH HYDROCARBON/ HYDROGEN 3.2 -29 TO 551 B
E2B3 F3H4 1-1/4CR-0.5MO CL.300 RFS HYDROGEN RICH HYDROCARBON/ HYDROGEN 4.8 -29 TO 551 B
E4B2 F6A3 1-1/4CR-0.5MO CL.600 RFS HYDROCARBONS 3.2 -29 TO 551 B
FCH F6H1(R) 1-1/4CR-0.5MO CL.600 RJ HYDROGEN(ABOVE 5.1 BARG) WITH OR WITHOUT HYDROCARBONS 1.0 540 B
SS F6S1 1-1/4CR-0.5MO CL.600 RFS HP STEAM 1.3 -29 TO 550 B
S/2 F6T1 1-1/4CR-0.5MO CL. 600 RFS HP STEAM 1.6 -29 TO 474 ASME B31.1 A
E6B2 F8H3 1-1/4CR-0.5MO CL.1500 RFS HYDROGEN RICH HYDROCARBONS /HYDROGEN 3.2 -29 TO 551 B
28A(*) F9H3 A335 GR P11 CL 2500 RFS HYDROGEN RICH HYDROCARBONS, HYDROGEN 3.2 -10 TO 550 D
AC H1A1 5CR.-0.5MO CL.150 RFS HYDROCARBONS 1.0 -29 TO 430 A
23B(*) H3A1 A335 GR P5 CL 300 RFS HYDROCARBONS 1.3 -10 TO 450 D
CC H3A3 5CR-0.5MO CL.300 RFS HYDROCARBONS 3.2 -29 TO 510 B
FDH H6A1(R) 5CR-0.5MO CL.600 RJ HYDROCARBONS 1.5 -29 TO 540 B
FDH H6H1(R) 5CR-0.5MO CL.600 RJ HYDROGEN(ABOVE 5.1 BARG) WITH OR WITHOUT HYDROCARBONS 1.5 -29 TO 540 B
21C(*) I1A1 A335 GR P9 CL 150 RFS HYDROCARBONS 1.3 -10 TO 450 D
CD I3A1 9CR-1MO CL.300 RFS HYDROCARBONS 1.0 -29 TO 540 B
AD J1A1 12CHROME CL.150 RFS HYDROCARBONS 1.0 -29 TO 370 A
AL K1A1 TP 304 CL.150 RFS COMRPESSOR LUBU OIL. 1.0 -29 TO 260 A
AL/1 K1F1 TP 304 CL.150 RFS POLYELECTROLYTE SOLUTION 1.0 -29 TO 150 B
31C(*) K1L0 TP 304 CL. 150RF DEMINERALIZED WATER ZERO -10 TO 100 B
CL K3A1 TP304 CL. 300 RFS COMPRESSED SEAL OIL 1.0 -29 TO 260 A
CN K3H1 TP 304 CL.300 RFS HYDROGEN(ABOVE 5.1 BARG) WITH OR WITHOUT HYDROCARBONS 1.0 -29 TO 540 B
AS L1C1 TP304L CL.150 RFS CO2 RICH CONDENSATE. 1.0 -29 TO 150 A
AS L1E1 TP304L CL.150 RFS RICH AMINE 1.0 -29 TO 150 A
CS L3H1 TP 304L CL.300 RFS HYDROGEN WITH CO2 CONDENSATE, CARBON DIOXIDE RICH CONDENSATE
1.0 -29 TO 265 B
41B(*) M1A0 TP 316 CL 150 RFS CAUSTIC ZERO -10 TO 60 B
21B(*) M1A1 TP 316 CL. 150 RFS HYDROCARBON 1.6 -10 TO 250 B
41B(*) M1F0 TP 316 CL 150 RFS SULFURIC ACID ZERO 37 TO 260 B
M1A1 M1F1 TP 316 CL.150 RFS CHEMICALS 1.6 -29 TO 260 B
15
JUNE , 2007 NIOEC-SP-50-04(1)
NIOC LINE
CLASS
NIOEC LINE
CLASS MATERIAL FLANGE
RATING SERVICE CORROSION ALLOWANCE
(MM)
TEMP. LIMIT (°C) REMARKS BRANCH
TABLE
ASS N1C1 TP 316L CL.150 RFS CO2 RICH CONCENSATE. 1.0 -29 TO 150 A
ASS N1E1 TP 316L CL.150 RFS RICH AMINE 1.0 -29 TO 150 A
N1A1 N1F1 TP316L CL.150 RFS HYDROCARBON/PHOSPHORIC ACID 1.6 -29 TO 316 A
41A(*) N1L0 TP 316L CL. 150 RFS DESALINATED WATER ZERO -10 TO 150 D
Q2A1 P3A1 TP321 CL.300 RFS CORROSIVE PROCESS 1.6 -29 TO 415 A
CSH P3P1 TP321 CL.300 RFS SULFUR VAPOR 1.0 -29 TO 653 B
Q7C1 P9H1(R) TP321 CL.2500 RJ HYDROGEN RICH HYDROCARBONS/HYDROGEN 1.6 -29 TO 482 A
63A(*) V3L0(F) ASTMB466 ALLOY 706 CL. 300 FFS COOLING SEA WATER ZERO -10 TO 75 B
LB X1F0(F) PVC CL.150 FFS CHEMICAL(CORROSION INHIBITOR).BRINE ZERO 50 -
K/3 Y1K0 CONCRETE CL.150 OILY/NON OILY SEWER(UNDERGROUND) ZERO 60 -
- Y1L0(F) GRE CL 150 FF FIRE WATER, SERVICE WATER ZERO 85 J
(*) Project line class.
16
JUNE , 2007 NIOEC-SP-50-04(1)
10. BRANCH TABLE
10.1 PIPE CLASS: Group A
Branch Size
1/2 3/4 1 1 1/2 2 3 4 6 8 10 12 14 16 18 20 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 60
1/2
3/4
1 TS
1 1/2
2
3
4
6
8
10
12
14
16
18
20 TW
24
26
28
30
32
34
36 SO WO
38
40
42
44 NW /NR
46 (T)
48
50
52
54
60
Run
Size
TS: Socket Welding Tee
WO: Weld O-let
SO: Sockolet, Thredolet NW: Nozzle Weld without Reinforcing Saddle TW: Butt Welding Tee NR: Nozzle Weld with Reinforcing Saddle NOTE: (1) Require of saddle shall be checked as per ASME B31.3
17
JUNE , 2007 NIOEC-SP-50-04(1)
10.2 PIPE CLASS : Group B
Branch Size
1/2 3/4 1 1 1/2 2 3 4 6 8 10 12 14 16 18 20 24 26 28 30 32 1/2 3/4 1 TS
1 1/2 2 3 4 6 8 10 12 14 16 18 20 24 SO WO TW 26 28 30
Run
Size
32
TS: Socket Welding Tee
WO: Weld O-let
SO: Sockolet, Thredolet TW: Butt Welding Tee
18
JUNE , 2007 NIOEC-SP-50-04(1)
10.3 PIPE CLASS: Group C
Branch Size
1/2 3/4 1 1 1/2 2 3 4 6 8 1/2 3/4 TS 1
1 1/2 2 3 SO 4 TW 6 WO 8
Run
Siz
e
TS: Socket Welding Tee WO: Weld O-let SO: Sockolet, Theredolet TW: Butt Welding Tee
19
JUNE , 2007 NIOEC-SP-50-04(1)
10.4 PIPE CLASS: Group D
Branch Size
1/2 3/4 1 1 1/2 2 3 4 6 8 10 12 14 16 18 20 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 60 64
1/2
3/4
1 TS
1 1/2
2
3
4
6
8
10
12
14
16
18
20 TW
24
26
28 TW
30
32
34
36 SO WO
38
40
42
44
46
NW /NR (1)
48
50
52
54
60
64
Run
Size
TS: Socket Welding Tee
WO: Weld O-let
SO: Sockolet, Thredolet NW: Nozzle Weld without Reinforcing Saddle TW: Butt Welding Tee NR: Nozzle Weld with Reinforcing Saddle NOTE: (1) Require of saddle shall be checked as per ASME B31.3
20
JUNE , 2007 NIOEC-SP-50-04(1)
10.5 PIPE CLASS: Group E
Branch Size
1/2 3/4 1 1 1/2 2 3 4 6 8 10 12 14 16 18 20 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 60
1/2
3/4
1 TS
1 1/2
2
3
4
6
8
10 TW
12
14
16
18
20
24
26
28
30
32
34
36 SO
38
40
42
44
46
NW /NR (1)
48
50
52
54
60
Run
Size
TS: Socket Welding Tee
NW: Nozzle Weld without Reinforcing Saddle
SO: Sockolet, Thredolet NR: Nozzle Weld with Reinforcing Saddle TW: Butt Welding Tee NOTE: (1) Require of saddle shall be checked as per ASME B31.3
21
JUNE , 2007 NIOEC-SP-50-04(1)
10.6 PIPE CLASS: Group F
Branch Size
1/2 3/4 1 1 1/2 2 3 4 6 8 10 12 14 16 18 20 24 1/2 3/4 1
11/2 2 TN 3 TN 4 + RC 6 1 8
10 12 14 16 18 20 24
Run
Siz
e
TN: NPT Screwed Tee
RC: Concentric Reducer 1: Ductile Iron Tees
22
JUNE , 2007 NIOEC-SP-50-04(1)
10.7 PIPE CLASS: Group G
Branch Size
1/2 3/4 1 1 1/2 2 3 4 6 8 10 12 14 16 18 20 24 1/2 3/4 1
1 1/2 2 TN TN 3 + RC 4 6 1 8
10 12 14 16 18 20 24
Run
Siz
e
TN: NPT Screwed Tee
RC: Concentric Reducer 1: Ductile Iron Tees
23
JUNE , 2007 NIOEC-SP-50-04(1)
10.8 PIPE CLASS: Group H
Branch Size
1/2 3/4 1 1 1/2 2 3 4 6 8 10 12 14 16 18 20 24 1/2 3/4 1 TS
1 1/2 2 3 4 SO 6 8
10 12 TW 14 16 18 TEE+RED 20 24
Run
Siz
e
TS: Socket Welding Tee
NW: Nozzle Weld without Reinforcing Saddle
SO: Sockolet, Thredolet NR: Nozzle Weld with Reinforcing Saddle TW: Butt Welding Tee
24
JUNE , 2007 NIOEC-SP-50-04(1)
10.9 PIPE CLASS: Group I
Branch Size
1/2 3/4 1 1 1/2 2 3 4 6 8 10 12 14 16 18 20 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 60
1/2
3/4
1
1 1/2
2
3 TW
4
6
8
10
12
14
16
18 TW
20
24
26
28
30
32
34
36 P2P
38
40
42
44 P2P
46
48
50
52
54
60
Run
Size
TEE+RED
TW: Butt Welding Tee P2P: Pipe to Pipe Reduction TEE+RED: Standard Tee + Reducer
25
JUNE , 2007 NIOEC-SP-50-04(1)
10.10 PIPE CLASS: Group J
Branch Size 1/2 3/4 1 1 1/2 2 3 4 6 8 10 12 14 16 18 20 24
1/2 3/4 1
1 1/2 2 3 TE 4 6 8
10 12 TR 14 16 18 20 24
Run
Siz
e
TE: Equal Tee
TR: Reducing Tee
26
JUNE , 2007 NIOEC-SP-50-04(1)
11. LINE CLASSES
PIPING CLASS "A0F0(L)" PARTICULAR NOTES 1. P/T rating values shown on “piping classification list” indicates the design pressure and temperature
limits of piping class, unless otherwise specified.
27