Document qawmbppg0DykvgLDb5a5BDgk5

Q. ELANESE CORPORATION responsible issuing dept. CORPORATE SAFETY SUPERSEDES PROC. DATED E.P. E-3-2.1 SECTION: LOSS PREVENTION SUBJECT: SCHEME FOR THE IDENTIFICATION OF PIPING SYSTEMS ADMINISTRATIVE PROCEDURE PROCEDI RE NO............ 8-26 PACE.............. 1 of 3 OATES: issued September 1975 effective September 1S7S 1 SCOPE It Is a common practice for all facilities to use some type of coding system to iden tify types of piping materials and valves on the mechanical flow sheets and piping drawings. This procedure outlines the Celanese Coding System. Due to the nature of the system presented, it is broad enough In scope to specify any type of piping material, specifying it in definite terms for clear and convenient communications to the field. The coding system presents a method of coding the piping material with a series of numbers to be combined with the line number, and a convenient, simple method of coding the valves for clearly designating the type of valve to be used. While at present there exists no uniform federally enforced color code or identifi cation scheme for in-service piping, a standard is expected in the near future. At that time, this procedure will be revised to reflect those requirements. 2 PURPOSE The purpose of this procedure is to provide a piping material identification code system which will be common to all plants within the Corporation. This, in effect, provides a common language of communication to be used on mechanical flow sheets and piping drawings. Where piping engineering and design work are concerned, it will simplify communications between engineering and construction, as well as be tween the various plants for an exchange of design techniques and specialized services. In the case of piping, several groups of designers are usually involved before the work is started in the field. In order to carry out good safe piping practices as noted in the previous section, standard methods of presenting process designs, mechanical designs, and fabrication details are necessary. 3 PROCESS FLOW SHEETS Process engineers work out the details of processes and the processing equipment for carrying out the processes. The various types of Information to be provided by process engineers and their methods of presentation are outlined in Process Engineering Standards Section Pl-12 and Pl-13. Their function in the piping of a job is to make material balances which show the flow and composition in each pipe line, and to ascertain that all safety considerations are given due attention. They usually also specify the sizes of equipment. This information is presented in the form of process flow sheets which serve as a basis for developing mechanical flow sheets, piping drawings, plant layouts, and mechanical designs of equipment. Attachment 6 shows a section of a process flow sheet. 4 MECHANICAL FLOW SHEETS 009161 With process engineering flow sheets as a basis, mechanical flow sheets are pre pared to present schematically all piping, valves, instruments and other items of ELANESE CORPORATION RESPONSIBLE ISSUING DEPT. CORPORATE SAFETY SUPERSEDES PROC. DATED SECTION: LOSS PREVENTION SUBJECT: SCHEME FOR THE IDENTIFICATION OP PIPING SYSTEMS E.P. E-3-2.1 \ ADMINISTRATIVE PROCEDURE PROCEDURE NO............ 8-2f PAGE............... 2 of 3 OATES: issued September 1975 effective September 1975 equipment. Properly prepared mechanical flow sheets are an adequate basis for mechan ical design and construction cost estimates. Materials of construction are jointly selected by process* corrosion* end mechanical engineers* with research* development, and production personnel. The commonly accepted method for presenting these selec tions Is through the use of coding systems on the mechanical flow sheets. The piping draftsmen and take-off men obtain their Information from the coding systems. Attach ment 7 shows a section of a typical coded mechanical flow sheet. It is extremely Important that these mechanical flow sheets be reviewed In accordance with the provisIona of A.P. 8-62* Design Review of New Projects. 5 FINAL PIPING DRAWINGS The coding system used on the mechanical flow sheets should also be used on the final piping drawings. The coding system may or may not be used on bills of material. Items other than coamonly used fittings not covered by the coding system should be fully described by notes on the drawings. 6 EXTENT OF MATERIAL CODE In the piping material Identification code system* each pipe line and all of its components may be Individually engineered according to the process material to be conveyed In the line and its temperature and pressure. This system provides for the most economical design of piping systems which will satisfactorily perform the func tion for which they are Intended, while It also provides for usage of any surplus materials* materials from all plant stores* newly developed materials, and substi tution of materials when marketing conditions require. It also leaves the respon sibility of the design of the pipe line with the designer, and allows him to draw on his experience and knowledge to provide a safe,functional and economical system. In all cases* decisions are subject to review by the facility incumbent responsible for loss prevention. 7 USAGE OF MATERIAL CODE This coding system, when used on mechanical flow sheets and piping drawings, has proved to be a great time-saver In the engineering, drafting and construction of projects and Is adequate to supply accurate and definite Information to the field. Applications of the system* as used on drawings, are shown on a section of a typ ical mechanical flow sheet. See attachment 7 and a section of a typical piping drawing, attachment 8. 8 SPECIFIC ITEMS As will be noted, fittings are not coded on the drawings. Valve code applies to valve and flange except where valve and flange are of different pressure rating, as in the case of small size 600# steel valves used with 300# flanges. Flanges 009162 51ANESE CORPORATION ADMINISTRATIVE PROCEDURE RESPONSIBLE ISSUING DEPT. CORPORATE SAFETY SUPERSEDES PROC. DATED E.P. E-3-2.1 SECTION: LOSS PREVENTION SUBJECT: SCHEME FOR THE IDENTIFICATION OF PIPING SYSTEMS PROCEDI RE NO............8-26 PAGE.............. 3 of 3 OATES: issued September 1975 effective September 1975 Installed In the line without a valve are coded individually. Special lteas not included in the code are to be noted on the drawings. Proper fittings, gaskets, and bolting aaterlals are chosen froa the applicable tables in the attachments to this procedure according to pipe, valves and flanges used. 9 BILLS OF MATERIAL It is not recommended that the code system be used on bills of material unless purchasing an^ engineering work very closely on processing of material orders. Where items are spelled out on bills of material, it is necessary only for the designer, draftsman, incumbent responsible for lose prevention, and material take off man to be thoroughly familiar with the code system and the fitting, gasket, and bolting material charts. The pipefitter in the field need only have a basic know ledge of the pipe, valve and flange code. 10 PIPING MATERIAL CODE The type of piping material is designated by an abbreviated form of the ASTM speci fication of the pipe. For exsmple, to designate the class of pipe In a low pressure system requiring ASTM A-53 Grade A Schedule AO aeamlese pipe, the designation 53A followed by -AO, --aTv*"B Schedule AO, would be shown in the line number code. Any material may be so specified in a similar manner. This system provides a superior method for designating varying wall thicknesses in e closely engineered job. Should one be trying to utilize an assorted stock of pipe froa surplus, this system is very adaptable. In cases where more than one plant may be Involved in the engineering of piping (due to utilization of surpluses, common processes, or consultation), this system becomes imperative. 009163 ATTACHMENT 1 Page 1 of 2 TYPICAL APPLICATION OF PIPING MATERIALS CODE Example: Line requirement - 4" carbon steel pipe, ASTM Specification A53 Grade A, Schedule 40 seamless, line #7 in the Boiler Plant Area Code.... 4" Pipe Size r-- Pipe Material Code p--Pipe Schedule p--Line No. (--Unit, Area, or Dept. No. (Symbol or abbreviation) (Use if required) 53A-40-7-BP Code for flanges and valves is not included in the line cede shown above but shall be coded separately on drawings. See examples below and sketch included in this section for examples and details. Example: 3" - 150# carbon steel gate valve with raised face flanged ends. If weld end, designated (WE) on flow sheet. Piping drawing will designate whether flanged or veld end by drawing symbol. ---- Size -----------Valve or Flange Rating, Material & Facir. Designation for Gate Valve (See valve code sheet) Code.... 3" A 1 Column#3 of the flange and valve code sheet lists available facings for flanges and flanged valves other than shown in column #2. Where usage of the facings in colum #3 is rc-quirtd. the valve or flange code shall be suffixed by the proper symbol. Example: 4" - 600# carbon steel flanged globe valve with ring joint facing Code....4" C 2 (RJ) 009164 ATTACHMENT l Page 2 of 2 Where flanges only are required Che valve deslgnacion symbol shall be omitced. Example: 4" - 600# carbon steel raised face flange Code............ 4" C The prefixed letter "SM shall be understood to designate screwed pipe or components. In the case of valves (Page 9) 1"SC2 would be the proper designation for a 1" screwed 600# carbon steel globe valve. (1" - size, S - Screwed, C - 600# carbon steel, 2 - Globe) To indicate a screwed pipe line on the mechanical flow sheets or piping drawings prefix the letter S and the pressure rating of the fittings to the line code. Example: A screwed 1" 83A-80 pipe line number 22 with 3000 pound screwed fittings Screwed 3000# pressure rating Code; (S3000) 1" 83A-80-22 All pipe lines on mechanical flow sheets and drawings shall be understood to be of welded construction unless designated by the above symbol for screwed construction or otherwise specified. 009165 ATTACHMENT 2 / PIPING MATERIAL IDENTIFICATION BY CODE SYMBOL The following shows coded symbols Co be used in identification of pipe material according to ASTM specification and identification of valves and flanges accord ing to material, pressure rating(and general type. PIPE CODE ASTM or Manufacturer DesignationCode *A53 *A53 A53 Welded Carbon Steel Grade A Seamless Carbon Grade B Seamless Carbon Steel Steel S3W 53A 53B *A83 A106 A106 Grade A Seamless Carbon Grade A Seamless Carbon Grade B Seamless Carbon Steel Steel Steel 83A 106A 106B *A120 *A120 A312 Buttwelded Carbon Steel Buttwelded Galvanized Carbon Steel Type 304 Welded Stainless Steel 120W 120G 304W A312 *A312 A312 Type 310 Welded Stainless Steel Type 316 Welded Stainless Steel Type 317 Welded Stainless Steel 310W 316W 317W *B241 *B42 *B43 3003 Annealed Aluminum Seamless Copper Seamless Red Brass AL3 CU42 B43 B161 Buttweld Nickel B165 Buttweld Monel Saran Lined Carbon Steel - Any Grade * 161W 165W SL Double Tough Glass - Corning or equal Armored Double Tough Glass - Corning or equal GL AGL Standard pipe stocked within corporation Note: 1) In some plants, tubing is used instead of pipe. In these instances, the code is modified by the addition of T; i.e., 316 welded tubing is 316 WT. Also suffix gage instead of schedule, thus 316 WT-14 for 14 gage. 2) Should other types of pipe be required, assign each a code and identify them on a separate sheet and insert in construction standards 3) For lines to be steam traced and insulated, add I&T Example: 3" 316W-10 (I&T) 4) For lines to be insulated only add (I). Example: 3" 53A-40(I) 009166 ATTACHMENT 3 Symbols: Flange and Valve Code Code for Fiances & FI an tied Valves Column 1 Flange or Valve Code Column 2 Rating. Material & Facing Column 3 Symbols of Other Available Facings A 150# C/S B 300# C/S C 600# C/S RF (WE) (FF) RF (WE) RF (WE), (RJ), (T&G) D 900# C/S E 1500# C/S F 2500# C/S RF (WE), (RJ), (T&G) RF (WE), (RJ), (T&G) RF (WE), (RJ), (T&G) G 125# All Iron (200#W0G)FF H 125# IBBM (200#WOG) FF J 250# IBBM RF K 150# Bronze(200#WOG) FF L 150# 316 S/S ASA FF (WE) M 300# 316 S/S ASA RF N 600# 316 S/S ASA RF (WE) P 900# 316 S/S ASA RF Q 1500# 316 S/S ASA RF R 150# 317 S/S ASA FF (WE) AS 150# C/S Lap Joint Flange w/Line material Stub Ends BS 300# C/S Lap Joint w/line material stub end V 150# 316 S/S Corrosion Std (Flange only) FF W Special (sec special valve category on next page) Wa 125# Cl - Glass Lined FF Wb Flanged porcelain RF' Wc 150# monel FF Wd 150# C/S witn Duriron, Durimet 20. cr Alloy 20 trim FF We 150# Karbate RF Wf 150# Alloy 20 FF Wg 150# Nickel FF Wj 300?/ C/S witn Durimec 20. or Alloy 20 trim Wk 150# Ductile Iron W1 150?/ Ductile Iron Bronze Trim (WE) - Weld End, (RJ) - Ring Joint, (TiAJ) - Small Tongue and Groove. (RF) - Raised Face. (FF) - Flat Face 009167 Valve Code Type of Valve Gate Globe Angle Symbol 1 2 3 Swing Check Vert. Life Check Horiz. Lift Check 4 5 6 Plug 7 Ball Plug 7B Lift Plug 7L Needle 8 Special (see special valve pattern on next page) Y Pattern 9 Teflon diaphragm 10 NOTE: For screwed valves prefix "S" to Valve Code (See Special Code for Screwed Valves Below) Code for Screwed Valves Code Rating 4 Material * SX 200# Bronze SY 3000# C/S SZ 3000# 316 S/S ATTACHMENT 4 009168 ATTACHMENT 5 Example* of Variations of Standard Code which may be used to designate specific types of valves in the same general classification. 4" - A7 4" 150# Nordstrom Lubricated Plug Valve or equal 4" - L7B 4" 150# 316 S/S ball plug. Teflon seats 4" - B7B 4" 300# C/S ball plug. Teflon seats 4" - C7L 4" 600# C/S Lift Plug valve, Cameron Fig. 60062 or equal NOTE: 1) All companion flanges not included in the ASA Code shall be supplied or recommended by the valve or pipe manufacturer. 2) Should other types of valves or flanges be required assign each a code, continuing with Wm, and identify by adding to this sheet for construction standards. For additional valve body patterns continue body code beginning with No. 11. 3) For typical applications and details, see Section 11. 4) Far preferred manufacturers of valves, see Engineering Standard E3-8.1. 009169 TYPICAL PROCESS EUC.mC.E.ttlMQ FUPVOSHE.E.T ATTACHMENT 6 LE.CEMD O Cwc ) GET) CcZD <=> STREAM NUMBER FLOW- LB. PR* HR. COOLING WATER. STEAM P5\<* CONDENSATE Flow- gpa temp.*** STREAM HUMBER. MATERIAL M VJT WATER. ie> ACETIC AOO ACETIC Awuvjr.\w. Propriouxc AC IP feO \Olz ~! A PEOPRIOHIC ammvt>. 130 TOTALS (.lb. pee he) & FEED vi OH PROP. vR. REFL VS FbTM*) PROP. 1 z. 4 es 4,424 4,453 25 4,31 Co 4,343 50 3,4=3 2. S 484 i 10 no 009170 ATTACHMENT 7 ATTACHMENT 8 PlPtLAQi VAfc>Tg.U.\ A\- CQ-&C. APPUCftT>OM -- tXA,MPV.g. 4.* 304 VO-lft - Cm EXPlAMATiqm OF lCOP Cd DE_ MATLEtAL UC5iC(?.iV>T\DM 4." 304W-I0 - Cm 4* AS 3" V 3' 304 VO-VO - 7 3" LI 2." V t' V 1* L4 I* LI 5X1 3"A (PF) V5' SCI 2'HI l*'C2 3*334-40- toil) 4' -304 VAJtLPe.'D STAVVlLebS STL. -.SCH.iO - Ltwe. MO- Cm 4" - 130 POUWD -AKBom STL. LAP JT. FlC* UJtTW 304 3TuI3 EW0 3* - 130 PQUUP SVC* 3.3. COE.f2Od0W STD. LAmGC_. 3" - 504 *jClPP STAIMlUSS STL. - SCM.IO- LIWE. wo. T 3* - ISO lb. 3lC* STAtWLCSS STL. FlCVP- IjATI* ValvU. 2" - |<io lb. TV Ft 3b S.S. CO l?R05 lOM 3TC. PtCr v* - vs vl. tv'pe 3\c* s.s. corenoSvow st-d. .elaw^c. l" - 1A0 \v>. TVPC. 3l! 5.S. Cli"P SvUiKif-, :hEC< I* - ISO th.TVPIi- 3><. S.s. FuG'D. Ci AT & VALVC. */'- 200 lb.UUO.Cx. SCRfi.vWlS'D 3RASS GrATrs. v/alVE. a' - ISO I|0. C-S. VOZLL WE.CK. FLCt- Fi.iT TACfi-t) V*"- 400 lb. serzo. CACFbOW STL. CtATK. VA.LVE- 2" - I2S lb. ISSM FlAVP- Ar^TE. v/ALVE. \*Z" - |b CARftOM STL. FLiGP. C-tt-ftI=. VALVfi.. 3" - ASS <3*. A SMLS. CAfcVsOU STL . - 3CH 40 -LiuEHO. 10- VWSULATE-^j 009172