20 Pressure Vessel Design Consultancy Services for Pig Launchers/Receivers

1. Mechanical design to ASME Sec. VIII Div. 1

2. Process design for pigging flow and velocity

3. Quick opening closure specification and integration

4. 3D modeling and fabrication drawings

5. Pig signaler and tracking system selection

6. Material selection for corrosive/sour service

7. Design review for intelligent pig compatibility

8. Transient surge and pressure drop analysis

9. Nozzle load analysis and FEA support

10. Skid-mounted system design and layout

11. P&ID development and tag allocation

12. Safety interlock and closure logic development

13. Civil loading data and baseplate design

14. NACE MR0175/ISO 15156 compliance review

15. Non-destructive testing (NDT) support and documentation

16. Hydrotest planning and execution procedures

17. HAZOP and SIL study participation

18. Installation and commissioning support

19. Training documentation and O&M manuals

20. Retrofitting and modification design for existing PLRs

 Pig Launcher and Receiver – Overview

Pig Launchers and Receivers (PLRs) are pressure vessels installed on pipelines to insert (launch) and remove (receive) pipeline inspection gauges (pigs) used for cleaning, inspection, dewatering, or separation. Essential in pipeline operations, they ensure system integrity, flow assurance, and compliance.

🛠️ 2. Key Engineering Components

🔸 a. Piping

• Pipeline inlet/outlet connection

• Barred tee for pig passage

• Vent, drain, and kicker lines

• Pressure equalization line

• Bypass loop (optional)

• Isolation valves (ball/gate)

• Pig signalers and pig trap flanges

• Quick opening closure (QOC)

🔸 b. Civil Foundation

• RCC pad with anchor bolts

• Steel base skid for mobile units

• Drainage channel for spilled fluids

• Grout plan and load-bearing calculation

• Earthing system for static discharge

🔸 c. Pumps

(Indirectly associated; PLRs typically rely on pipeline pressure, but these may be present:)

• Line pressurization booster pumps

• Flushing pumps (for chemical pigs)

• Drain sump pumps

• Glycol or nitrogen injection pumps

🔸 d. P&ID Elements

• Inlet/outlet isolation valves

• Kicker line and vent valve

• Drain valve and gauge port

• Pig signalers (launch & receive confirmation)

• Equalization valve (between vessel and pipeline)

• Quick-opening closure safety interlocks

• Pressure and level indicators

🔸 e. Instrumentation

• Pressure gauges and transmitters

• Pig passage indicators (magnetic or intrusive)

• Local control panel or HMI interface

• Valve position indicators (motorized/manual)

• Safety interlock system on closure

• Vent/drain automation via solenoid valves

🔸 f. Associated Equipment

• Pig traps

• Pig tracking system (RFID or acoustic)

• Pipeline inspection tools (intelligent pigs)

• Chemical injection skids (for cleaning pigs)

• Temporary pig storage racks

🧪 3. Process Design Considerations

• Design for operating and MAOP of the pipeline

• Pig size and sealing cup type

• Velocity and flow rate for pig movement

• Surge and transient pressure analysis

• Horizontal or vertical installation

• Interface with compressor stations or pumping skids

• Hydrocarbon compatibility and pig debris handling

⚙️ 4. Mechanical Design Considerations

• ASME Section VIII, Div. 1 design code

• Design pressure: typically 150 – 1500 psi

• Closure design: Elliptical, Clamshell, or Threaded

• Material selection: CS, SS, or Duplex (NACE compliant if sour service)

• Corrosion allowance and coatings (internal/external)

• Hydrotest, NDT, and pressure relief design

• Nozzle load calculations (due to pig impact and surge)

🏗️ 5. 20 Pig Launcher and Receiver Equipment Naming Styles

1. PLR-X1000 Standard – 6" to 24" launcher/receiver skid

2. PipePig V-Series – Vertical pig receiver

3. FlowGuard-PLR Elite – Pigging package with sensors

4. MegaTrap™ – Heavy-duty launcher for long-distance pipelines

5. QuickLaunch-Pro – Fast closure & safety interlock

6. SmartPig DropTrap – Designed for ILI pigs

7. SafeSeal PLR-600 – Sour service, high-pressure

8. ZeroLeak PigSys™ – Leak-proof smart launcher

9. CompactTrap CS-Lite – For offshore platforms

10. OilLine TrapMaster – For crude oil pipelines

11. FlexiPig V-Receiver – Modular system

12. HydroTrap XP – Hydrotesting pig system

13. GasStream PLR1000 – Natural gas pigging unit

14. UltraQuick PigPort – Quick open & ergonomic

15. JetPig-LR Combo – Launcher-receiver combo skid

16. DuoTrap PigBay – Twin-pig launch & receive

17. EcoFlush PLR – With integrated flushing pump

18. LongRange PigMate – For 50+ km pigging

19. NitroSeal PigSystem – Nitrogen-sealed PLR

20. SmartTrack PigPort Pro – With RFID pig detection