Head Office: Riyadh, Saudi Arabia  ·  Engineering Center: Trichy, India
Engineering Consultancy · Saudi Arabia · GCC · India

Engineering Design, Analysis & Documentation

For Oil & Gas, Petrochemical, Power & Industrial Projects

Mechanical, static equipment, piping, structural, FEA, vibration, CFD and fabrication engineering to API, ASME and Saudi Aramco standards – from a single calculation to a complete IFC package – for EPC contractors, plant owners, fabricators and manufacturers.

  • Saudi Aramco SAES / SAMSS, SABIC & ADNOC specs
  • Fixed-price proposal within 24 hours
  • Riyadh head office + Trichy engineering center
  • Independent checking · NDA on request
24 hFixed-price proposal
15+Years of engineering
76+Projects delivered
12Engineering disciplines
6 + 1GCC countries + India
WORKING TO
  • API 650 / 653
  • API 610
  • API 579
  • ASME VIII Div. 1 & 2
  • ASME B31.3
  • ASME BTH-1
  • AISC 360
  • ACI 318
  • AWS D1.1
  • TEMA
  • NFPA
  • Saudi Aramco SAES / SAMSS
  • SABIC
  • ADNOC
Our Services

Complete Engineering Services

Every discipline your project needs – equipment, piping, structures, analysis, drawings and documents – designed by one team, to the same codes and the same standard of checking.

Mechanical and Rotating Equipment – SLETEC Engineering01

Mechanical & Rotating Equipment

Mechanical design and checks for pumps, compressors, fans, agitators and their packages.

  • Pump and compressor baseplates and supports
  • Nozzle load and alignment checks
  • Shaft, coupling and gearbox design checks
  • Equipment layouts and installation drawings
  • Datasheets, technical bid evaluation (TBE)
API 610API 617API 661API 686
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Tanks, Vessels and Heat Exchangers – SLETEC Engineering02

Tanks, Vessels & Heat Exchangers

Static equipment design from datasheet to fabrication drawings, including repair and re-rating.

  • API 650 / 653 storage tanks and floating roofs
  • ASME VIII Div. 1 / 2 vessels, air receivers, KO drums
  • Shell & tube exchangers and air coolers
  • Nozzle, saddle, leg and lifting lug calculations
  • Repair, alteration and re-rating packages
API 650API 653ASME VIIITEMAWRC 107/297
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Piping Design and Pipe Stress – SLETEC Engineering03

Piping Design & Pipe Stress

Plant and pipeline piping from routing studies to stress-checked, construction-ready isometrics.

  • Piping layouts, GA and plot plans
  • Isometrics with BOM and weld numbers
  • CAESAR II stress and nozzle load analysis
  • Pipe supports, shoes and spring hangers
  • Line sizing, hydraulics and tie-in design
ASME B31.3B31.4B31.8SAES-L
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Structural and Civil Engineering – SLETEC Engineering04

Structural & Civil Engineering

Steel and concrete design for process plants, workshops and equipment support structures.

  • Steel structures, platforms and pipe racks
  • Stairs, ladders, handrails and walkways
  • Equipment and machine foundations
  • Base plates, anchor bolts and connections
  • Wind and seismic load analysis
AISC 360ACI 318ASCE 7SBC 301
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FEA Stress and Fatigue Analysis – SLETEC Engineering05

FEA Stress & Fatigue Analysis

Finite element analysis where hand calculations are not enough – with code-based assessment.

  • Linear and nonlinear stress analysis
  • Nozzle-to-shell local stress (WRC / FEA)
  • Buckling and collapse checks
  • Fatigue life assessment
  • Fitness-for-service (FFS) Level 2 / 3
ASME VIII Div. 2API 579ANSYS
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Vibration and Modal Analysis – SLETEC Engineering06

Vibration & Modal Analysis

Natural frequency and vibration studies to prevent resonance in piping, structures and machines.

  • Modal (natural frequency) analysis
  • Harmonic and transient response
  • Flow- and acoustic-induced vibration (FIV / AIV)
  • Machine foundation dynamic analysis
  • Root-cause support for vibration problems
ISO 20816ACI 351.3Energy Institute
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CFD and Thermal Simulation – SLETEC Engineering07

CFD & Thermal Simulation

Computational fluid dynamics to see flow, pressure, temperature and mixing before you build.

  • Flow distribution and pressure drop
  • Multiphase, mixing and sloshing
  • Erosion and velocity checks
  • Heat transfer and thermal stress input
  • Silo, tank and duct flow studies
ANSYS FluentCFX
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Fabrication and Shop Drawings – SLETEC Engineering08

Fabrication & Shop Drawings

Workshop-ready drawings that fabricators can cut, weld and inspect from without questions.

  • General arrangement (GA) drawings
  • Shop and fabrication drawings with weld details
  • Bill of materials and cutting lists
  • Sheet metal flat patterns and laser-cut DXF
  • Drawing checks and as-built updates
AWS D1.1ISO 2553AutoCADSolidWorks
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Skids, Machines and Lifting – SLETEC Engineering09

Skids, Machines & Lifting

Packaged equipment and lifting design, from 3D model to certified calculation.

  • Pump, metering, dosing and chemical skids
  • Special machines, jigs and fixtures
  • Lifting beams, spreader bars and lugs
  • Lift plans and rigging calculations
  • Reverse engineering of spare parts
ASME BTH-1ASME B30.20AISC 360
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Brownfield and 3D Laser Scanning – SLETEC Engineering10

Brownfield & 3D Laser Scanning

Accurate as-built data and modification design for operating plants and shutdowns.

  • 3D laser scanning and point clouds
  • Scan-to-CAD 3D models and as-built drawings
  • Tie-in and hot tap packages
  • Shutdown and turnaround engineering
  • Clash checks against existing plant
Scan-to-CADAs-builtTie-ins
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EandI and Fire Safety – SLETEC Engineering11

E&I and Fire Safety

Electrical, instrumentation and fire protection layouts integrated with the mechanical design.

  • Cable tray and cable routing layouts
  • Instrument location and hook-up drawings
  • Fire water network, hydrants and monitors
  • Foam and deluge system layouts
  • Fire & gas detector layouts
NFPASAES-BIEC
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MTO, MDR and Documentation – SLETEC Engineering12

MTO, MDR & Documentation

The documents your client, inspector and procurement team need – complete and on format.

  • MTO, BOQ and BOM
  • MDR and final data dossiers
  • Method statements and ITPs
  • Calculation reports and design basis
  • Vendor document review
Saudi AramcoSABICADNOC
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Engineering Calculations

Calculations We Deliver

Complete reports with inputs, code references, results and conclusions – in the format Saudi Aramco, SABIC, ADNOC and third-party inspectors expect.

Static equipment

  • Tank shell, bottom and roof design (API 650)
  • Tank wind, seismic and anchorage (API 650 Annex E)
  • Vessel thickness and MAWP (ASME VIII)
  • Nozzle reinforcement and local loads (WRC 107 / 297 / 537)
  • Saddle, leg and skirt supports
  • Fitness-for-service / remaining life (API 579)

Piping & process

  • Pipe stress and nozzle loads (CAESAR II)
  • Pipe span, support and spring hanger loads
  • Line sizing and pressure drop
  • Pump hydraulics and NPSH
  • Flange leakage and bolt torque
  • Insulation and heat loss

Structural & civil

  • Steel member and connection design (AISC 360)
  • Base plates and anchor bolts (ACI 318)
  • Equipment and machine foundations (ACI 351.3)
  • Wind and seismic loads (ASCE 7 / SBC 301)
  • Platform, stair and ladder design
  • Pipe rack and sleeper design

Lifting & analysis

  • Lifting lugs and trunnions
  • Lifting beams and spreader bars (ASME BTH-1)
  • Weld strength and fillet weld sizing
  • Fatigue life assessment
  • Natural frequency and resonance check
  • Thermal expansion and thermal stress
Need one calculation only?Send the drawing or datasheet – fixed price, usually within 24 hours.
Send Calculation Request
How We Engage

Every Scale, One Standard

The same engineers, codes and checking on every job – from a single calculation to a complete IFC package.

EPC contractors & plant owners

Complete engineering packages

Multi-discipline detailed engineering, brownfield and shutdown packages – review through IFC to as-built.

EPC engineering support
Critical equipment

Specialist design & analysis

Tanks, vessels, FEA, vibration, CFD and pipe stress for equipment that must be right first time.

Engineering calculations
Workshops & manufacturers

Manufacturing & fabrication

Fabrication drawings, BOM, cutting lists, skids, machines, jigs and reverse-engineered spare parts.

Equipment we design
Defined tasks

Rapid technical support

Single calculations, design checks, drawing revisions and lifting checks – fixed price, fast turnaround.

Rapid engineering tasks
How a Project Runs

Clear Process, Checked Results

  1. 01

    Share your scope

    P&IDs, datasheets, sketches, photos or old drawings – by form, email or WhatsApp.

  2. 02

    Fixed-price proposal

    An engineer reviews it and sends scope, deliverables, schedule and price – usually within 24 hours.

  3. 03

    Engineering & checking

    Work executed to the applicable codes and your specifications, checked internally before issue.

  4. 04

    IFC, comments & as-built

    Client comments incorporated; final files handed over in native formats.

Code-compliant

Every deliverable references the governing code and your client specification – API, ASME, AISC, AWS, Saudi Aramco SAES / SAMSS, SABIC and ADNOC.

Checked before issue

Independent internal checking of calculations and drawings before anything leaves our office.

Fixed price, clear scope

Defined deliverables, schedule and price in writing – usually within 24 hours of your enquiry.

Local + engineering center

Riyadh head office for coordination and site support; Trichy engineering center for capacity and speed.

Native, editable files

DWG, DXF, SolidWorks, STEP, IGES, ANSYS and Excel files handed over with every package.

Confidential

Project data stays with the engineers working on it. NDA signed on request.

Industries

Sectors We Serve

  • Oil & Gas
  • Petrochemical
  • Refinery
  • Power
  • Water & Desalination
  • Cement
  • Mining
  • Manufacturing
  • Fabrication Workshops
  • Offshore & Marine
Where We Work

Across the GCC

Remote engineering support worldwide – see all locations.

Have a drawing, datasheet or engineering problem?

Send it today – an engineer replies with scope, schedule and a fixed price within 24 hours.

FAQ

Frequently Asked Questions

Still have a question? Call or WhatsApp +966 55 545 8298.

What engineering services does SLETEC provide?

Mechanical, piping, structural and E&I engineering; API 650 / 653 tank and ASME VIII vessel design; FEA stress, vibration and fatigue analysis, modal (frequency) analysis, CFD and pipe stress analysis; fabrication drawings; skid and machine design; brownfield and shutdown engineering; and MTO, MDR and method statement documentation.

Which countries do you serve?

Saudi Arabia, the UAE, Qatar, Oman, Kuwait and Bahrain from our Riyadh head office, supported by our engineering center in Trichy, India – and remotely worldwide.

Do you work to Saudi Aramco, SABIC and ADNOC standards?

Yes. Deliverables reference SAES and SAMSS, SABIC and ADNOC specifications and your project specification, together with API, ASME, AISC, AWS, TEMA and ISO.

Can you handle both large packages and single tasks?

Yes. We deliver multi-discipline IFC packages and also take defined single tasks – one calculation, one drawing or a design check – at a fixed price.

What do you need to prepare a quotation?

Whatever you have: P&IDs, datasheets, specifications, sketches, photos, old drawings or a short description. We reply with scope, schedule and a fixed price, usually within 24 hours.

Which software and file formats do you use?

AutoCAD, SolidWorks, ANSYS and Excel, delivering DWG, DXF, PDF, SolidWorks, STEP and IGES files or the format your project requires.

Is our project information kept confidential?

Yes. Project data is shared only with the engineers working on it. We sign NDAs on request.

Request a Proposal

Tell Us What You Need

Send your scope, drawings or a short description. An engineer reviews every enquiry and replies with scope, schedule and a fixed price – usually within 24 hours.

Request a Quotation

Fields marked * are required. Attach anything you have – we will ask if we need more.

Scope of work
Reply usually within 24 hours · Confidential · Up to 5 files, 10 MB