ASME Pressure Vessel Design & Engineering

At Destech Engineering Pvt. Ltd., we provide comprehensive ASME pressure vessel design and engineering services for the oil & gas, petrochemical, chemical processing, power generation, and industrial manufacturing sectors. Our engineering team specializes in the mechanical design, analysis, and detailing of pressure vessels in accordance with the ASME Boiler and Pressure Vessel Code (Section VIII, Division 1 & Division 2) and applicable international standards.

Pressure vessels operate under demanding conditions involving internal pressure, external pressure, temperature variations, and complex loading scenarios. A properly engineered vessel is essential for ensuring operational safety, reliability, regulatory compliance, and long service life.

From preliminary sizing and mechanical calculations to fabrication drawings and engineering documentation, Destech Engineering delivers complete pressure vessel engineering solutions that are practical, code-compliant, and ready for manufacturing.

Types of Pressure Vessels We Design

Horizontal Oil Separator
Vertical Oil Separator
Knock Out Drums
Gas Scrubbers
Filter Vessels
Air Receivers
Pulsation Bottles
Buffer Tanks
Accumulators
Process Columns

List of Pressure Vessels We Designed

Equipment Diameter / Thickness Length Material Position Design Pressure Design Temperature
Accumulator 3300 ID × 40 thk 12500 SA 240 304L Horizontal 365 psig 250 °F
Compressor Scrubber 2450 ID × 30 thk 3500 SA 240M 304 Vertical 365 psig 250 °F
Economizer 762 ID × 12 thk 2438 SA 516 Gr. 70 Vertical 250 psig 15 °F
Finite Oil Separator 30 in ID × 1/2 in thk 84.25 in SA 516 Gr. 70 Horizontal 250 psig 15 °F
Dryer Filter 6 in × Sch STD 24.5 in SA 106 Gr. B Horizontal 250 psig 250 °F
Oil Filter 6 in × Sch STD 40.5 in SA 240 316L Vertical 350 psig 250 °F
Oil Recovery Pot 6 in × Sch 40 40 in SA 106 Gr. B Horizontal 250 psig 144 °F
Receiver 30 in ID × 1/2 in thk 216 in SA 516 Gr. 70 Horizontal 250 psig 15 °F
Oil Separator 890 ID × 12 thk 3800 SA 240M 304L Horizontal 365 psig 210 °F
Suction Drum 594 ID × 8 thk 2055 SA 240M 304L Vertical 300 psig 210 °F
Surge Drum 762 ID × 8 thk 3500 SA 240M 304L Horizontal 300 psig 250 °F
Liquid Separator (2600) 8 in × Sch 40S 2000 mm SA 312 TP304 Horizontal 2270 kPag 75 °C
Oil Separator (2600) 14 in × Sch 80S 3000 mm SA 312 TP304 Horizontal 2270 kPag 100 °C
Oil Filter (2600) 6 in × Sch STD 495 mm SA 312 TP304 Vertical 2700 kPag 100 °C
Recovery Oil Pot (2600) 12 in × Sch 40S 1000 mm SA 312 TP304 Horizontal 2270 kPag 200 °C
Refrigerant Receiver (2600) 14 in × Sch STD 1500 mm SA 333 Gr. 6 Horizontal 2270 kPag 100 °C
Dryer Filter (2600) 6 in × Sch XS 622 mm SA 333 Gr. 6 Horizontal 2270 kPag 100 °C
Seal Oil Pot (2600) 6 in × Sch 80S 660 mm SA 312 TP304 Vertical 2270 kPag 100 °C
Recovery Oil Pot (3600) 12 in × Sch 40S 1000 mm SA 312 TP304 Horizontal 2270 kPag 200 °C
Seal Oil Pot (3600) 6 in × Sch 80S 660 mm SA 312 TP304 Vertical 2270 kPag 100 °C
Dryer Filter (3600) 6 in × Sch XS 622 mm SA 333 Gr. 6 Horizontal 2270 kPag 100 °C
Oil Filter (3600) 6 in × Sch STD 495 mm SA 312 TP304 Vertical 2700 kPag 100 °C
Oil Separator (3600) 16 in × Sch 40S 3000 mm SA 312 TP304 Horizontal 2270 kPag 100 °C
Receiver (3600) 24 in × Sch XS 2500 mm SA 333 Gr. 6 Horizontal 2270 kPag 100 °C
Liquid Separator (3600) 16 in × Sch 40S 3500 mm SA 312 TP304 Horizontal 2270 kPag 75 °C
Bulk Oil Separator 120 in × 3/4 in thk 2286 mm SA 516 Gr. 70 Vertical 157 psig 248 °C
Coalescing Oil Separator 60 in × 1/2 in thk 2134 mm SA 516 Gr. 70 Vertical 157 psig 248 °C
Discharge Pulsation Bottle 14 in × Sch 40 508 mm SA 106 Gr. B Horizontal 60 barg 120 °C
Suction Pulsation Bottle 14 in × Sch 80 914 mm SA 106 Gr. B Horizontal 60 barg 120 °C
Suction Drum 30 in ID × 1 in thk 1524 mm SA 516 Gr. 70 Vertical 60 barg 120 °C
Oil Separator 28 in × Sch XS 2400 mm SA 333 Gr. 6 Horizontal 2.1 MPag 120 °C
Liquid Separator 20 in × Sch STD 2400 mm SA 333 Gr. 6 Horizontal 2.1 MPag 120 °C
Suction KO Drum 24 in × Sch STD 2100 mm SA 333 Gr. 6 Vertical 1.6 MPag 70 °C
H2 Gas Separator 629 ID × 22 thk 2105 mm SA 516 Gr. 70N Vertical 910 psig 350 °F
H1 Recycle H2 Gas Separator 761 ID × 32 thk 2101 mm SA 516 Gr. 70N Vertical 1160 psig 350 °F
HDO Make-up H2 Separator 711 ID × 45 thk 2108 mm SA 516 Gr. 70N Vertical 1980 psig 350 °F
1st Stage Accumulator 6 in × Sch 10S 350 mm SA 312 TP316 Horizontal 15 barg 100 °C
2nd Stage Accumulator 4 in × Sch 40S 550 mm SA 312 TP316 Horizontal 70 barg 100 °C
Suction Accumulator 8 in × Sch 10S 700 mm SA 312 TP316 Horizontal 10 barg 100 °C
Buffer Vessel 12 in × Sch 10S 1800 mm SA 312 TP316 Horizontal 10 barg 100 °C

Some of our Pressure Vessel Designs

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Codes & Standards We Follow

Our pressure vessel designs comply with internationally recognized engineering codes and client specifications, including:

  • ASME Boiler & Pressure Vessel Code Section VIII Division 1
  • ASME Boiler & Pressure Vessel Code Section VIII Division 2
  • ASME Section II – Materials
  • ASME Section V – Non-Destructive Examination
  • ASME Section IX – Welding Qualifications
  • ASME B16 Series (Flanges and Fittings)
  • API Standards (where applicable)
  • TEMA Standards (for exchanger-related equipment)
  • Project-specific client specifications

Our Pressure Vessel Engineering Services

Our engineers perform detailed mechanical design calculations to determine the required dimensions, material thicknesses, reinforcement requirements, and structural integrity of pressure vessels.

We perform comprehensive calculations in accordance with ASME Section VIII requirements.

Our drafting team prepares complete fabrication documentation suitable for manufacturing and inspection.

Correct nozzle placement is essential for process efficiency, fabrication, maintenance, and piping integration.

We design vessel support systems such as saddles and legs to safely withstand operational and transportation loads.

Where required, we evaluate additional loading conditions affecting pressure vessels. Analysis includes:

  • Wind loading
  • Seismic loading
  • Nozzle piping loads
  • Lifting loads
  • Transportation loads
  • Local stress evaluation
  • Support reactions
  • Structural integrity assessment

Our Pressure Vessel Engineering Scope

Mechanical Engineering
  • Design calculations
  • Material selection
  • Thickness calculations
  • Code compliance verification
  • Equipment weight calculations
Structural Engineering
  • Support design
  • Foundation load calculations
  • Wind and seismic assessment
  • Lifting arrangement
  • Transportation assessment
Piping Coordination
  • Nozzle orientation
  • Nozzle loading review
  • Equipment interface coordination
  • Maintenance clearance verification
Drafting & Documentation
  • General Arrangement Drawings
  • Fabrication Drawings
  • Assembly Drawings
  • Nozzle Orientation Drawings
  • Bill of Materials
  • Welding Details
  • As-Built Drawings

Our Typical Deliverables

Our pressure vessel engineering package may include:

  • Mechanical Design Calculations
  • Pressure Vessel Datasheets
  • GA Drawings
  • Fabrication Drawings
  • Assembly Drawings
  • Nozzle Orientation drawings
  • Support Detail Drawings
  • Welding Detail Drawings
  • Weight Reports
  • COG Reports
  • Mechanical Strength Calculation
  • Bill of Materials (BOM)
  • Material Take-Off (MTO)
  • Internal Details
  • Nozzle List
  • As-Built Drawings