• No results found

Piping Design Basis


Academic year: 2021

Share "Piping Design Basis"


Loading.... (view fulltext now)

Full text










1.0 SCOPE:- ... 5

2.0 PLOT PLAN:- ... 5

3.0 UNIT PIPING:- ... 8







10.0 MISCELLANEOUS:- ... 19

11.0 REFERENCES:- ... 20


ABBREVIATIONS:-AARH : Arithmetic Average Roughness Height

ANSI : American National Standards Institute

API : American Petroleum Institute

AS : Alloy Steel

ASME : American Society of Mechanical Engineers

ASTM : American Society for Testing & Materials

AWWA : American Water Works Association

BHN : Brinell Hardness Number

BS : British Standard

BS : Booster Station

BW : Butt Weld

CBD : Closed Blow Down

CS : Carbon Steel

DPT/I/E : Dye Penetrant Test/ Inspection/ Examination

EFSW : Electro Fusion Seam Welded

EPCC : Engineering, Procurement. Construction and Commissioning

GC : Gathering Centre

HAZID : Hazard Identification

IGC : Inter Granular Corrosion

ISO : International Organization for Standardization

LTA : Larsen & Toubro Arabia

max. : Maximum

min. : Minimum

MOC : Material Of Construction

MOV : Motor Operated Valve

MPT/I/E : Magnetic Particle Testing/ Inspection/ Examination

MSS : Manufacturers Standardization Society

NB : Nominal Bore

NACE : National Association of Corrosion Engineers


OD : Outside Diameter

P & ID : Piping and Instrumentation Diagram

PFD : Process Flow Diagram

PMS : Piping Material Specification

Psi,g : Pounds per Square Inch, Gauge

PZV : Pressure Safety Valve

PUF : Poly-Urethane Foam

PWHT : Post Weld Heat Treatment

QRA : Qualitative Risk Analysis

RF : Raised Face

RP : Recommended Practice

RTJ : Ring Type Joint

RTRP : Reinforced Thermosetting Resin Pipe

SCRD-M/F : Screwed- Male/ Female

SS : Stainless Steel

SP : Special Products/ Standard Practice

SW : Socket Weld

TPIA : Third Party Inspection Agency

U/G : Under Ground

UFD : Utility Flow Diagram

VMS : Valve Material Specification



SCOPE:-This Document briefly describes the basic requirements for the Design of Piping Systems covered by ASME B31.3 for the project “Midyan Processing Facilities”. This document is developed based on feed Basis of Design: GE-E0010 and shall be adhered to during the course of Detail Engineering, Procurement, fabrication, Transportation, Erection, Installation, Testing, Inspection, Pre-commissioning and Commissioning.


PLAN:-2.1 Basis of Plot Plan

Layout for the facility shall be developed considering the inputs from following documents:

 Overall Plot Plan(PI-A100001.001 Rev-0A)

 Plot Plan –Process Area(PI-A100001.002 Rev-D)

 Plot Plan –Utility & Storage Area(PI-A100001.003, Rev-C)

 Plot Plan-Flare & Burn Pit Area(PI-A100001.004, Rev-D)

 Plot Plan –Substation Area(PI-A100001.006, Rev-B)

 Plot Plan- Evaporation Ponds Area(PI-A100001.007, Rev-B)

 Site Plan-(PI-A100001.005, Rev-D)

 Equipment List/ Process & Mechanical Data Sheets.

 Basic Design Data.

 QRA recommendations.

 Statutory requirements of HSE, Separation Distances as per Aramco

guidelines(SAES-B-005, SAES-054 & SAES-B-055).

 Site Visit Report.

2.2 Considerations for the finalization of Plot Plan

Following aspects shall be addressed during plot plan/ equipment layout development.

2.2.1 General guidelines set by Saudi Aramco Engineering.


 Access, Egress and material handling for Plant Facilities(SAES-B-054)

 Spacing and diking for Atmospheric and low pressure tanks (SAES-B-005)

 Electrical Area Classification(SAES-B-068)

 Design of Plant Piping (SAES-L-310)

 Any other applicable Saudi Aramco Engineering standards and specification and

American Society of Mechanical Engineers (ASME) Code ASME B 31.3.

2.2.2 Proper interconnection between equipment as per P&IDs to achieve the intended

process requirement of no pocket, slope & free draining.

2.2.3 Process area battery limit shall be marked in plot plan. All equipments handling

hydrocarbons shall be located within this process area battery limit. All safety distances from the process area battery limit to any other facility outside the process area shall be as per SAES-B -055 guidelines.

2.2.4 Minimize the quantity of expensive piping (superior & exotic metallurgy and large/ heavy sizes & schedules).The emphasis shall be to avoid criss-crossing of lines & the equipment with associated piping shall be aligned to the main process/ utility flow direction and `incoming & outgoing’ process and utility streams. The same shall be verified through 3D Model & model review sessions.

2.2.5 Erection & Construction requirement: Plant access, Erection scheme, lay down area, crane positioning & implication of construction sequence, arrival-at-site of equipment/Modules shall be considered during finalization of Plot Plan/equipment-layout, so as to have smooth & sequential erection, mainly with regard to heavy equipment/ over-dimensioned-consignments. 2.2.6 Safety Requirements : The safety norms & measures shall be strictly adhered to as per Saudi Aramco standards and guidelines and those suggested by loss prevention engineer to ensure safe work environment during all phases of project life cycle. Any other recommendation arising from HAZOP, SIL, Building Risk Assessment, Fire Risk analysis (FRA), Flare Radiation Analysis shall also be implemented.

2.2.7 Eye Wash & Safety Showers (EWSS) shall be provided near the facilities involving


2.2.8 Constructability, Commissioning, Operation and Maintenance Requirements:

 Overhead and side clearances for vessels, exchangers and pumps.

 Provision of exchangers tube bundle pulling area.

 Horizontal & overhead clearances for easy movement of operating

personnel/maintenance vehicles.

 -Barrel/ Rotor removal for multistage pumps.

 Crane approaches for Air-Coolers/ Compressors.

 Provision of monorail/E.O.T for pumps as per contractual requirement of Project Scope.

 Alternate access for fire fighting.

2.2.9 Midyan Processing Facilities shall be modular based, skid mounted units. Modular units shall be shop fabricated, tested and pre commissioned to the extent feasible & within the limitation of module sizes from transportation consideration.

2.2.10 The overall plot plan for Midyan Processing Facilities shall be developed as per Saudi Aramco Engineering Standard by considering prevailing wind direction of Wajeh WNW.

2.2.11 Equipment arrangement in process module shall be provided with adequate space to facilitate operation and maintenance and with minimum spacing requirement as per Saudi Aramco Engineering Standard –SAES-B-055, Layout of each module and spacing between modules shall allow access for equipment from relevant sides. However all efforts should be made to improve upon the access aisles/space in modules w.r.t. feed layout.

2.2.12 Roadways in plants and other facilities – width, overhead clearances, shoulder width etc. shall be provided in accordance with clause 9.5 of SAES-B-055. For access to tankage area shall provided in accordance with clause 4.13 of SAES-B-054.

Spacing and diking for Atmospheric and low pressure Tanks shall be as per SAES-B-005 guidelines. Spacing between tanks and associated equipments shall be as per clause no. 5.2 of SAES-B-005. Table 1 shall be followed for minimum distance requirement two tanks or between a tank and other equipment. Diking requirement shall be guided by clause no 5.3 of SAES-B-005. Dyke design and construction shall be as per clause 5.3.8 of SAES-B-005.


3.0 UNIT

PIPING:-3.1 Basis of Unit Piping

3.1.1 Following inputs shall be the basis of unit-piping.

 Overall plot plan

 Equipment Layout.

 Structural & Architectural Building Drawings.

 topography of the plant-site.

 Piping & Instrument Diagram (P&ID), Utility Flow Diagram (UFD) & Process Flow Diagram (PFD).

 Meteorological & Geo-technical data.

 Line Designation Table.

 Equipment Data-Sheet & Setting-Plan.

 Instrument Data-Sheet.

 Piping & Valve Material Specification (PMS & VMS).

 Specific Project/ Client requirements.

 Saudi Aramco Engineering Standards & Specifications.

3.1.2 The design of plant piping shall be in accordance with SAES-L-310.

The design & conceptualization of Unit-Piping shall be focused towards meeting the following basic objectives:

 Process, P&ID and PFD requirements & stipulations.

 Access to all operating-points including valves, spacers & spades, strainers, sample-points and instrumentations.

 Avoid unnecessary pockets, dead-ends & dead-legs. Piping runs shall be as short as possible with minimum number of elbows.

 Proper access shall be planned w.r.t. `interrelated-operating-points’ for specific purpose and for control & maintenance.


 Unobstructed & unhindered crane-access shall be provided during construction & likewise maintenance-vehicles, (hydraulic-cranes & fork-lifts) shall have adequate-access/ approach to critical equipment during plant-operation.

 Adequate access, egress and material handling for plant facilities shall always be

provided for process, operating & maintenance personnel within the unit/ plant in

accordance with SAES-B-054, SAES-J-003 and PIP PCCGN002. However

clearance/access within the modules may be compromised in specific case to optimize the module/skid size which can be reviewed during model review session.

 Adequate access to valves, instruments, nozzles etc shall be provided though

platforms, scaffolding, mobile stair, permanent ladders for module and non module piping in line with PIP PNE0003 and PIP PCCGN002. However same can be reviewed during model review sessions.

 Tripping hazards shall be minimized in modules.

 Isolation, draining & venting, flushing & purging provisions shall be provided.

 Piping connected to rotating and reciprocating equipment, pumps etc. shall be as per


3.2 Pipe-Rack/Sleepers Piping

3.2.1 The Pipe racks shall be laid out such that they shall provide the necessary access for all operations and maintenance. The elevations of intersecting pipe ways shall normally be at different level to allow for future piping. A minimum of 20% space of the total width of the pipe rack shall be earmarked for future expansion on the pipe rack.

3.2.2 Fin fan exchangers shall be located over the main pipe rack.

3.2.3 Generally the hot lines and cold lines shall be kept apart in different groups on a rack-tier/sleeper. Predominantly process lines and utility lines shall be kept at different tiers/levels. However in case if the same is not feasible due to layout or any other constraint process and utility lines shall be segregated & grouped separately on the same tier.

3.2.4 Generally the bigger size lines and lines requiring expansion loop shall be kept nearer to the rack column/ edge of rack or sleeper.


3.2.5 The minimum spacing between lines supported on sleepers or pipe rack shall be as per Standard drawing AC-036207. However in case of any space constraint, following minimum spacing shall be adopted to fix the pipe to pipe inter distances:

Minimum spacing: ½ OD of bigger size flange (As per line rating) + ½ OD of smaller size pipe + Individual Insulation thickness of pipes + 25 mm clearance.

3.2.6 Actual line spacing, especially at ‘L’ bends and loop locations, shall take care of the growth (expansion/ contraction) of adjacent lines to allow clash-free thermal-displacements.

3.2.7 Anchors on the pipe-racks/ sleepers are to be provided on bays/

anchor-sleepers. As far as possible anchors shall be distributed over two to three consecutive bays/sleepers.

3.2.8 Small Bore piping shall generally be always grouped together for ease of supporting.

Intermediate supports shall be considered in accordance with allowable basic span for small bore pipe, as applicable.

3.2.9 The minimum sleeper height shall be maintained as 300 mm.

3.3 Relief / Blow Down System Piping

3.3.1 Relief System/Blow down system design shall be as per SAES-F-007.

3.3.2 The minimum horizontal spacing requirements for flares shall be in accordance with


3.3.3 For burn pit flares the last 100 M (328 ft) of the flare headers and auxiliary piping shall be buried underground or protected by radiation shield as per clause 6.7.10 of SAES-F-007. 3.3.4 Pressure relief valves, depressuring valves and pressure control valves outlets shall enter the flare header from above and at an oblique angle to the header and shall be as per Aramco standard drawing AE-036550.


3.3.5 All piping (including headers between flare knockout drums and flares) shall be self-draining into the unit and/or flare knockout drums. A minimum slope of 1:475 (21mm in 10 meters) shall be maintained as per clause 6.14.5 of SAES-F-007. Flat `expansion-loop’ shall be provided in horizontal plane as per requirement to accommodate thermal expansion. The design-slope shall be ensured throughout including flat-loop. Flare header shall be supported on shoe of height ranging from 100 mm minimum to 350 mm maximum.

3.3.6 Proper thermal analysis temperature shall be established including the possibility of temperature gradient along the line before providing expansion loops. Efforts shall be made to minimize the number of loops

3.3.7 Pockets in the flare header and blow down system shall be avoided.

3.3.8 Inlet and outlet piping of pressure relief valve shall be adequately supported to take care of the reactionary thrust induced by the relief valve during popping.

3.3.9 Reaction forces due to safety valve popping shall be ascertained in the connected

piping according to API RP 520, for systems discharging to atmosphere. The effect of these forces on the piping supports, anchors and the supporting structure shall be adequately addressed.

3.4 Utility-Stations

3.4.1 The requirement of utility-stations shall be in accordance with the P&IDs. Where

required for maintenance or cleaning purpose, utility station shall be provided at grade to cover the entire process area and at working levels for elevated equipment, where necessary.

3.4.2 Utility station for water & air shall be located such a way that all the equipment shall be approachable from at least one utility station with a 15 mtr hose. The utility station shall generally be located adjacent to pipe-rack column.

3.4.3 Clause 18.4 of SAES-L-310 shall be followed for type of connectors and color code of

the same.


3.5 Instrument Air Piping

3.5.1 All main and branch header shall be sloped minimum 64 mm per 30m (2.5 inches per

100 ft) and provided with low point drain as per Clause no of SAES-J-901. Minimum size of instrument air pipe header shall be 2” of schedule 40.

3.5.2 Each branch header shall connect to the top of main header through a

branch-line-size, full bore isolation valve.

3.5.3 Supply takeoffs to individual instruments shall connect to the branch header through

a take off line size, full bore isolation valve.

3.5.4 Instrument air piping shall not be pocketed (i.e. shall not contain U sections).

However any specific case of pocket formation due to layout constraint shall be reviewed for further consideration case to case basis and if found unavoidable shall be provided with drain valve.

3.5.5 Piping material for instrument air piping shall be galvanized.

3.6 Fire Fighting System Piping

Piping system designated for fire protection water system in plant areas shall comply with SAES-B- 017, foam system shall comply with SAES-B-018, portable, Mobile and special fixed firefighting equipment shall comply with SAES-B-019.


PIPING:-4.1 Underground or buried piping system shall be designed in accordance to clause 13 of



SUPPORTING:-Flexibility analysis of all piping systems shall be carried-out in accordance with ASME B 31.3 and SAES-L-120, SAES-L-310


5.1 Pipe Supporting Criteria & General Guidelines

5.1.1 Load Conditions”, as per clause 8, SAES-L-120 shall be used for performing stress

analysis and supporting of piping system.

5.1.2 Pipe supporting shall preferably follow the basic span as given in Annexure-I. For sizes not covered in Annexure-I, basic span shall be established based on project requirement. 5.1.3 Piping on rack or sleeper, shall be supported on every grid. Guides shall be provided on straight run of pipes at intervals as specified in Annexure-III, unless specifically becomes non-viable due to flexibility problems.

5.1.4 Additional supports, guides, anchors, special supports like spring supports and sway

braces shall be provided based upon detailed analysis of piping system to restrict the forces on nozzles of critical equipment like pumps, compressors, turbines, exchangers, air-coolers, columns & towers etc.

5.1.5 A permanent support shall be provided for lines which do not need any supporting

otherwise but require supporting during maintenance. This support shall be either resting or spring-support.

5.1.6 Bare pipes of size 14”NB and above shall be supported by saddle type support with

reinforcement pad.

5.1.7 Adequate care shall be taken for small bore branching, (1½” and below).

5.1.8 Wherever two phases with slug flow in piping is expected, piping design shall be

checked by “dynamic stress analysis” to prevent vibrations.

5.1.9 Pipe support design shall be such that deflection in piping systems due to sustained

loads shall not exceed 15mm, between two adjacent supports. For sloped-lines, it shall be such that the slope is maintained.

5.1.10 Average installation temperature to be adopted for stress-analysis calculation shall be 95ºF.


5.1.11 Long trunion support (more than 500 mm height) shall be avoided as far as possible, so that it will not create excessive stresses at the attachment welds to the run pipe. A 6 mm weep hole shall be drilled for all dummy supports. The weep hole shall be located near the base plate for all vertical dummy supports, near the run pipe at 6 o’clock position for all horizontal dummy supports.

5.1.12 Piping passing through the structure or passing near the column etc. should have

adequate space to avoid restriction of line movement during thermal expansion. The gap

should be sufficient to avoid any fouling considering insulation.

5.1.13 All pipe-supports shall be so designed that there is no undue tension on equipment flanges.

5.1.14 At any point of the piping system, and for any load combination, horizontal displacement shall be within the limit specified in clause 6.2.1 of SABP-L-006.

5.1.15 Rod hangers shall be avoided use for lines 12” NPS and larger in liquid service or

multi-phase flow. The maximum swing angle due to horizontal pipe movement will be limited to 4

degrees. Rod hanger shall be provided with means for vertical adjustment.

5.1.16 Spring supports immediately downstream of rotating equipment will be limited to 10-15% load variation.

5.1.17 Spring hanger assembly shall be designed for sustaining the hydro test load.

5.2 Flexibility Analysis- General Guidelines

5.2.1 General Guidelines mentioned in clause 5 of SAES-L-120 shall be followed.

5.2.2 The requirements mentioned in Special Requirements clause 9 of SAES-L-120 shall be

followed. However for pressure relief valve and de pressurizing systems DLF (Dynamic Load Factor) shall be taken as 2 for load calculation.

5.2.3 Nozzle load evaluation for rotating machinery equipment shall be checked for operating condition against the allowable forces and moments of the equipment.


5.2.4 Design of piping systems shall take into account different conditions expected during operation, start-up, shut-down, cold branch in case of standby pump etc.

5.2.5 Steam out is not applicable.

5.2.6 When the routing of a piping system does not inherently provide adequate flexibility, the same shall be provided by additional expansion-loops or offsets. Bellow expansion-joints are the least preferred means of providing requisite flexibility & they shall not be used without prior company/ client’s approval.

5.2.7 Detailed Piping Stress analysis reports shall include details as mentioned in SAES-L-120, Appendix A, Case A.

Formal Piping Stress Analysis reports shall include the following: 1. Operating/design parameters.

2. Piping isometric drawings shall include the following

a) Dimensions

b) Material Specifications

c) Location and details of restraints.

3. Hand Calculation/ Calculation performed with CAESAR. 4. Referenced charts or tables if used.

5.3 Criteria for Analysis

5.3.1 The requirements mentioned in clause 6 of SAES-L-120 shall be followed for

categorizing the lines in Piping Flexibility Analysis.

5.3.2 Flange leakage check is required for the following lines:

- ASME Pr Rating600 #: 26”NB & above, except air & water lines. - ASME Pr Rating900 #: 08”NB & above, except air and water lines.

All other critical lines connected to sensitive equipment such as plate-fin exchangers, cold boxes (sizes 06”NB & above and having analysis temp. > 250°F & < -75°F)

CAESAR-II software package shall be used for performing flange leakage check.

5.3.3 All lines shall be analyzed at design temperature. In case the difference between


mutual consent with the process department. However, analysis of flare line & calculation of thermal growth of tall equipment shall be performed as per process input.

5.3.4 The solar radiation temperature shall be considered for bare-lines, if the design

temperature is less than the solar temperature. The metal solar temperature shall be considered as 160°F as per clause 7.2 b of SAES-L-120.

5.3.5 Dynamic analysis shall be performed wherever two phase flow with slug in piping is

expected as per the process requirement. Fundamental frequency of piping system shall be well above imposed frequencies, if any, to avoid resonance. The minimum acceptable frequency for lines with slug flow shall be 06 Hz.

5.3.6 Wind Analysis criteria:

Wind analysis shall be performed for the lines listed under `static analysis’, if they fall under the following criteria:

Any line of size10”NB, (including insulation, if any) & routed at elevation10 m

Wind load on piping shall be calculated in accordance with ASCE # 07.

Following basic wind data shall be considered for wind-load calculation as per SAES-A-112 for Wajeh

Max. Basic design wind velocity = 145 km/hr. Wind shape factor = 0.7

Wind exposure = C, as per ASCE # 07.

Structural classification = 2.0, Occupancy category II as per ASCE # 07. 5.3.7 Seismic Analysis criteria

Seismic analysis shall be performed for the lines falling under the criteria of “Detailed Analysis” as per chart B-1 of SAES-L-120


Following basic Seismic data shall be considered for Seismic-load calculation as per SAES-A-112 for Wajeh

Short Period Acceleration (Ss) in %g = 27.1

1-sec Period Acceleration (S1) in %g = 7.0

Peak Ground Acceleration in %g = 10.8

Site Class = D

Importance Factor = 1, for Occupancy Category II as per ASCE # 07

Site Coefficient Fa = 1.6 as per ASCE # 07

Site Coefficient Fv = 2.4 as per ASCE # 07

Response Modification coefficient R = 12 as per ASCE # 07


MATERIALS:-Saudi Aramco Engineering Standard SAES-L-132 shall be followed as general guidelines for Material Selection for Piping Systems. Project Piping Material specifications PD-X89-SP-1001 and Valve Material Specification PD-X89-SP-1002 shall be prepared as per guidelines SAES-L-105, SAES-L-108 and all other SAMSS, SAES, Piping Industry practices (PIP), API or ASME specifications specified therein.

6.1 Pipe thickness calculation shall be based on line design conditions as per line designation

table for following cases:

For pipe class 6CS9P: Lines 10" and above. For pipe class 15CS9P: Lines 4" and above.

API 5L pipe used shall either be seamless or double submerged arc welded with longitudinal seam.


Miscellaneous Requirements:

6.2 NDE Requirements

The general welding requirements for On-Plot Piping shall be as per SAES-W-011. The

minimum requirement of NDE for various piping services shall be in accordance with clause of SAES-W-011.

6.3 Inspection & Testing

6.3.1 All items and their parts shall be subjected to all mandatory as well as supplementary (wherever specified) inspections, tests and checks called-for in the respective codes/ standards & specifications/ data sheets in line with the instructions of SAER -1972.

6.3.2 All inspection and steel piping shall be performed as per Saudi Aramco Inspection

Requirements Form 175-03100.

6.3.3 Pressure testing for Plant piping shall conform to 150,SAES-A-004 & SAES-L-125.

6.3.4 The minimum mandatory requirement for PMI shall be as per SAES-A-206.


VESSELS:-Minimum mandatory requirements for design and installation of insulation shall be as per SAES-N-001 & Process Industry Piping insulation design Guide PIP INEG1000.

Following basic insulation material to be used. Hot insulation: Mineral Fiber

Cold Insulation: Polyurethane Foam (PUF)

However, Insulation thickness on piping shall be as per the operating temperature furnished in the line designation table issued by process Engineering Group.



CODING:-External and Internal coating material selection shall be as per clause 7 of SAES-H-001 & clause 5 of SAES-H-002. Surface preparation shall be as per clause 8 of SAES-H-001. For color coding and marking for piping SAES-B-067 shall be referred.


SYSTEM:-The buried piping (including appurtenances) shall be catholically protected as per SAES-X-600.


MISCELLANEOUS:-10.1 Quality of water used for hydro testing shall meet the requirements of Saudi Engineering

Aramco Standard SAES-A-007. Hydrostatic test waters must be disposed of in accordance with the requirements of SAEP-327 and SAES-A-103. All lines subjected to hydro testing shall be provided with high point hydro test vent and low point hydro test drain. Hydrotest vent and drain size shall be of ¾”. For pipe class 900 and above double isolation valve shall be used. Gate valve shall be used for hydrotest drain/vent. However all process drain and vent shall be as per Saudi Aramco std. AC-036045.001.

10.2 All cleaning, flushing of piping spools and systems shall be in accordance with clause 15 & Appendix A of SAES-L-350.

Cleaning requirements in centrifugal compressors (sales gas compressors and propane refrigeration compressor) shall be as per Clause no. 5.6 of SAES-K-402 .

Cleaning requirements in reciprocating compressors (recycle gas compressor )shall be as

per Clause No. 6.16 of SAES-K-403.

Cleanliness Standard for Lube/Seal Oil and Fluid Power Systems shall be as per SAES-G-116.


Chemical Cleaning and Flushing of Lube/Seal Oil and Fluid Power Systems shall be as per SAEP-1028

10.1 Design and installation of fireproofing for Pipe-Supports shall be as per clause 5.5 of SAES-B-006.

10.2 Safety identification and Safety colors shall conform to SAES-B-067 requirement.

10.3 Following equipments shall be provided with sunshade as per project requirement.

 Sales Gas Compressor

 Propane refrigeration Compressor

 Recycle Gas Compressor

 Instrument Air Compressor

 Fire Water Pumps

 DG Set

 Booster Pumps

Mobile crane shall be available for any maintenance work for the items serial no. a to f. Booster Pumps shall be provided with EOT of 3T capacity.


REFERENCES:-It shall be noted that all Codes, Standards & Specifications referenced underneath shall be invariably the latest revisions with all addendums, at the time of `Issue of Work-Order’/ `Award-of-Contract’ for the Midyan Gas Processing Facilities.

11.1 Saudi Aramco Engineering Standards:

SAES-A-007 : Hydrostatic Testing Fluids and Lay-Up procedures

SAES-A-112 : Meteorological and Seismic Design Data

SAES-A-202 : Saudi Aramco Engineering Drawing Preparation

SAES-B-005 : Spacing and Diking for Atmospheric and Low-Pressure Tanks

SAES-B-017 : Fire Water System Design.

SAES-B-018 : Foam Systems


SAES-B-054 : Access, Egress, and Materials Handling for Plant Facilities

SAES-B-055 : Plant Layout

SAES-B-067 : Safety Identification and Safety Color

SAES-B-068 : Electrical Area Classification

SAES-B-069 : Emergency Eyewashes and Showers

SAES-F-007 : System Design Criteria of Flares.

SAES-G-116 : Cleanliness Standard for Lube/Seal Oil and Fluid Power Systems

SAES-L-100 : Applicable Codes and Standards for Pressure Piping Systems

SAES-L-101 : Regulated Vendor List for Pipes, Fittings and Gaskets

SAES-L-102 : Regulated Vendor List for Valves

SAES-L-105 : Piping Material Specification.

SAES-L-108 : Selection of Valves

SAES-L-109 : Selection of Pipe Flanges, Stud Bolts and Gaskets

SAES-L-110 : Limitations on Piping Joints and Components

SAES-L-120 : Piping Flexibility Analysis

SAES-L-125 : Safety Instruction Sheet for Piping and Pipelines.

SAES-L-130 : Material for Low Temperature Service

SAES-L-131 : Fracture Control of Line Pipe

SAES-L-132 : Material Selection for Piping System

SAES-L-133 : Corrosion Protection Requirements for Pipelines/Piping

SAES-L-136 : Pipe Selection and Restriction

SAES-L-150 : Pressure Testing of Plant and Pipelines

SAES-L-310 : Design of Plant Piping


SAES-S-050 : Sprinkler and Standpipe Systems in Buildings

SAES-S-070 : Installation of Utility Piping Systems

SAES-J-700 : Control Valves.

SAES-H-001 : Coating Selection and Application Requirements for Industrial Plants

and Equipments.

SAES-H-002 : Internal and External Coatings for Steel Pipelines and Pipings

SAES-H-101 : Approved Protective Coating System.

SAES-K-402 : Centrifugal Compressors

SAES-K-403 : Reciprocating Compressors

SAES-L-610 : Nonmetallic Piping in Oily Water Services.

SAES-W-011 : Welding requirements for On-Plot Piping.

SAES-N-001 : Basic Criteria Industrial Insulation.

SAES-X-600 : Cathodic Protection for Plant Facilities.

11.2 Saudi Aramco Material Standard

01-SAMSS-010 : Fabricated Steel Piping

01-SAMSS-017 : Auxiliary Piping for Mechanical Equipments.

11.3 Saudi Aramco Engineering Procedures

SAEP-110: Saudi Aramco Standard Drawings

SAEP-1028: Chemical Cleaning and Flushing of Lube/Seal Oil and Fluid Power Systems

11.4 Saudi Aramco Best Practice

SABP-L-006: Piping Stress Analysis Review


11.5 Process Industry Practices

PIP PNF0003 : Process Industry Practices- Process Unit and Offsites Layout


PIP INEG1000 : Insulation Design Guide

11.6 List of International Codes and Standards:

ASME SEC.II, Part-C : Material Specifications: Welding Rods, Electrodes & Filler-Metals.

ASME SEC. VIII : Rules for the construction of Pressure Vessels.

ASME SEC. IX : Welding & Brazing qualifications.

ASME B 31.3 : Process Piping.

ASME B 16.5 : Pipe Flanges and Flanged Fittings (NPS ½” Thru NPS 24”)

ASME B 16.9 : Factory Made Wrought Butt Welded Fittings

ASME B 16.10 : Face-to-Face and End-to-End Dimension of Valves

ASME B 16.11 : Forged Fittings, Socket Welded and Threaded

ASME B 16.20 : Metallic Gaskets

ASME B 16.2 : Non-Metallic Gaskets

ASME B 16.25 : Butt welding Ends

ASME B 16.47 : Large Diameter Steel Flanges (NPS 26” Thru NPS 60”)

API RP520 : Selection, Sizing & Installation of Pressure Relieving Devices

in Refineries.

API Std. 610 : Centrifugal Pumps for Petroleum, Heavy Duty Chemical & Gas

Industry Service.

API Std. 661 : Air Cooled Heat Exchanger.

API Std. 560 : Fired Heaters.


ISO 15156 Production/ Refineries

11.7 List of Project Specifications and other documents:

GE-E00010 : Basis of Design

PI-E00151 : Specification of Piping Materials (Issued for 90% Project


PD-X89-SP-1001 : Piping Material Specification (PMS).

PD-X89-SP-1002 : Valve Material Specification (VMS).

CE-MFP-DB-4001 : Civil & Structural design basis.


ANNEXURES:-(i). Annexure – I : Table of basic-span for pipes.




Pipe Type Pipe Size NB (Inch) SCH / THK (In)

Pipe, Vapour & Insulation Pipe, Liquid &

Insulation Bare Pipe, Empty

Bare Pipe &

Water Filled Pipe

Size NB (Inch)

Basic Span (L), meter Basic Span (L), meter -

-Upto 175º C 176ºC thru 315ºC 316ºC thru 400ºC Upto 175ºC 176ºC thru 315ºC 316ºC thru 400ºC Span (L),m Weight Kg/m Span (L), m Weight Kg/m C a rb o n -S te e l/ A llo y -S te e l S c h e d u le -4 0 , S e ri e s ¾” SCH 40 3.5 3.5 2.5 3.5 3.0 2.0 4.5 1.68 4.0 2.04 ¾” 1” SCH 40 4.5 4.0 3.0 4.5 3.5 3.0 5.0 2.52 4.5 3.07 1” 1½” SCH 40 5.0 5.0 3.5 5.0 4.5 3.5 6.0 4.08 5.0 5.40 1½” 2” SCH 40 5.5 5.0 3.5 5.0 4.5 3.5 6.5 5.47 5..5 7.65 2” 2½” SCH 40 6.5 6.0 3.0 6.0 5.5 4.5 7.5 8.7 6.5 11.79 2½” 3” SCH 40 7.5 6.5 5.5 6.5 6.0 5.0 8.0 11.35 6.5 16.15 3” 4” SCH 40 8.0 7.5 6.5 7.5 7.0 6.0 9.0 16.2 7.5 24.45 4” 6” SCH 40 10.0 9.5 8.5 9.0 8.0 7.5 10.5 28.3 9.0 46.70 6” 8” SCH 40 12.0 11.0 10.0 10.0 10.0 9.0 12.0 42.84 10.0 75.22 8” 10” SCH 40 13.5 13.0 12.0 11.5 10.5 10.5 14.0 60.74 11.5 111.90 10” 12” 3/8” w 14.5 13.5 13.0 12.0 11.5 11.0 15.0 74.40 12.0 147.50 12” 14” 3/8” w 15.0 14.5 13.5 12.0 12.0 11.5 16.0 82.5 12.5 172.05 14” 16” 3/8” w 16.0 15.5 14.5 13.0 12.5 12.0 17.0 94.5 13.0 213.15 16” 18” 3/8” w 17.0 16.5 15.0 13.5 13.0 12.0 18.0 106.5 13.5 258.30 18” 20” 3/8” w 18.0 17.5 16.0 14.0 13.5 12.5 19.0 118.5 14.0 307.50 20” 24” 3/8” w 20.0 19.0 17.5 14.5 14.5 13.0 21.0 142.5 15.0 418.20 24” C a rb o n -S te e l/ A llo y -S te e l S c h e d u le -8 0 , S e ri e s ¾” SCH 80 3.5 3.5 2.5 3.5 3.0 2.0 4.5 2.20 4.0 2.49 ¾” 1” SCH 80 4.5 4.0 3.0 4.5 3.5 3.0 5.0 3.25 4.5 3.72 1” 1½” SCH 80 5.0 5.0 4.5 5.0 4.5 4.0 6.0 5.45 5.0 6.60 1½” 2” SCH 80 6.0 5.0 4.5 5.5 5.0 4.0 6.5 7.53 6.0 9.45 2” 2½” SCH 80 6.5 6.0 5.5 6.0 6.0 5.0 7.5 11.49 6.5 14.25 2½” 3” SCH 80 7.5 6.5 6.0 6.5 6.5 6.0 8.0 15.37 7.0 19.66 3” 4” SCH 80 8.0 8.0 7.0 7.5 7.5 6.5 9.0 22.47 8.0 29.94 4” 6” SCH 80 10.5 10.0 9.0 9.5 9.0 8.5 10.5 42.90 9.5 59.85 6” 8” ½” w 12.0 11.5 10.5 10.5 10.0 10.0 12.0 65.10 11.0 94.80 8” 10” ½” w 13.5 13.0 12.0 11.5 11.5 10.5 14.0 82.20 12.0 130.69 10” 12” ½” w 14.5 13.5 13.0 12.5 12.0 11.5 15.0 98.13 13.0 168.64 12” 14” ½” w 15.0 14.5 13.5 13.0 12.5 12.0 16.0 108.15 13.5 194.40 14” 16” ½” w 16.0 15.5 15.0 13.5 13.0 13.0 17.0 124.2 14.0 240.00 16” 18” ½” w 17.5 17.0 16.0 14.5 14.0 13.5 18.0 140.25 14.5 286.64 18” 20” ½” w 18.0 17.5 17.0 15.0 14.5 14.0 19.0 157.5 15.0 341.80 20” 24” ½” w 20.0 19.0 18.5 16.0 15.0 15.0 21.0 188.25 16.0 458.44 24” S ta in le s s -S te e l S c h e d u le -1 0 S , S e ri e s 1” 10 S 4.0 3.5 3.0 4.0 3.0 2.5 4.5 2.08 4.0 2.70 1” 1½” 10 S 5.0 4.5 3.0 4.5 4.0 3.0 5.5 3.12 5.0 4.57 1½” 2” 10 S 5.0 4.5 3.5 4.5 4.0 3.0 6.0 3.94 5.5 6.33 2” 2½” 10 S 6.5 5.5 4.5 5.5 5.0 4.5 7.0 5.26 6.0 8.85 2½” 3” 10 S 7.0 6.0 5.0 6.0 5.5 5.0 7.5 6.45 6.0 11.91 3” 4” 10 S 7.5 7.0 6.0 6.5 6.0 6.0 8.0 8.34 7.0 17.67 4” 6” 10 S 9.5 9.0 8.0 8.0 7.5 7.5 10.0 13.82 8.5 34.54 6” 8” 10 S 11.0 10.5 10.0 10.95 9.5 8.5 11.5 19.94 10.0 55.50 8” 10” 10 S 12.5 12.0 11.0 10.5 10.0 9.5 13.0 27.83 11.0 83.40 10” 12” 10 S 14.0 13.0 12.0 11.0 11.0 10.0 14.5 36.00 11.5 114.60 12” 14” 10 S 14.5 14.0 13.0 11.5 11.0 11.0 15.5 41.18 11.5 132.60 14” 16” 10 S 16.5 14.5 14.0 12.0 11.5 11.5 16.5 47.33 12.5 172.20 16” 18” 10 S 16.5 15.5 14.5 12.5 12.5 11.5 17.5 53.18 13.0 212.10 18” 20” 10 S 17.5 16.5 15.5 13.0 13.0 12.0 18.5 68.50 13.0 264.50 20” 24” 10 S 19.0 18.0 17.0 14.0 13.5 12.5 20.5 94.37 14.0 376.8 24”



VERTICAL AND HORIZONTAL GUIDES SPACING Pipe size (Inches) Vertical Spacing (m) Horizontal Spacing (m) Note-1 1 6 6 1.5 2 3 8 12 4 6 8 10 12 18 12 14 16 18 20 16 24 26 & above. GENERAL

NOTES:-1) These spacings may be varied to suit column spacing of pipe-rack. The above spacing is for straight runs of pipe & does not include thermo-guides which are used for control of thermal movements, as decided by the stress-group.


Related documents

Thus, among scientific and governmental institutions, the Dialogue was largely understood as an exercise to survey public attitudes, an impression also conveyed by the headline of

A global analysis of climate change impacts on irrigation demand 162.. suggests that two thirds of the irrigated area in 1995 will be subjected to increased water

– LNG is growing more rapidly due to the relative cost reduction, abundant supply, mature technology, and increasingly flexible contract terms and conditions..

Cause everybody knows money is money and it's very important.&#34; But it just isn't real at all because it has the same relationship to real wealth, that is to say to actual

 By steps taken by SECP and ICAP e.g. changes in Code of Corporate Governance to strengthen the role and responsibilities of directors for good internal control and

To be most effective in expeditionary operations, naval intelligence per- sonnel should be integrated into national, theater, and service intelli- gence organizations to

[Gascoigne et al., 2010, p. It has even been cautiously debated in JCOM — Journal of Science Communication whether the field “has achieved the status of a discipline” [Gascoigne et

Back Fight Against Islamic State, but Is Vague on Limits, L.A.. the United States and American foreign policy and national security interests. In addition, the lawmakers in