Piping Fabrication
S-Con, Incorporated provides prefabricated process piping systems to the oil and natural gas industries. Custom designs can be generated using our 3D modeling programs or we can utilize existing client provided designs. S-Con, Incorporated maintains its own extensive specifications which are utilized to properly design a system based on the process conditions as well as selection of materials for each job. S-Con can additionally utilize a client provided specification if available.
S-Con, Incorporated’s experience is focused on the production of process piping systems built from the following materials:
- Carbon Steel
- Stainless Steel
To prevent cross contamination, separate areas are utilized for the fabrication of our stainless-steel process piping systems. S-Con specification is based on welding diameters from 2” to 24”, but larger sizes can be handled. Smaller than 2” can be socket welded. Lengths can vary, but spools of up to 60’ are frequently handled in our shops. Welding is performed using Gas Metal Arc (GMAW) and Flux Core Arc (FCAW) procedures. In certain circumstances Shielded Metal Arc (SMAW) or Gas Tungsten Arc (GTAW) may be used, for example, if we must go to the field to weld.
Fabricated Piping Systems
- Pipe Spool Sizes from ½” to 30” diameter
- Pipe Spool Lengths up to 60’
- Vessel Instrument Bridles
- PSV Tail Pipes
The piping spools fabricated by S-Con, Incorporated are typically supplied for the following applications:
- Natural Gas Treating and Processing Plants
- Natural Gas Compressor Stations
- Pipeline Stations
- Power Plants
- Petrochemical Plants
- Loading Stations
- Modular Skid Manufacturers
- Crude Oil Storage Facilities
- Natural Liquids Storage Facilities
- Gas and Diesel Storage Facilities
The process services that our piping systems are typically utilized for are as follows:
- Non-Corrosive Hydrocarbon and Utility Piping -20°F to 800°F
- Low Temp Non-Corrosive Hydrocarbon Piping -50°F to 200°F
- Cryogenic Non-Corrosive Hydrocarbon Piping -325°F to 200°F
- Corrosive Hydrocarbon Piping -20°F to 500°F
- Sour Hydrocarbon Piping H2S Service (NACE) -20°F to 800°F
- Galvanized Utility Piping -20°F to 300°F
- Amine Piping -20°F to 500°F
- P. Steam and Condensate -20°F to 800°F
- P. Steam and Condensate -20°F to 800°F
- Non-Corrosive Hydrocarbon for B31.8 Service -20°F to 800°F
S-Con, Incorporated’s piping systems meet the latest applicable federal, state, and local codes.
- American Society of Mechanical Engineers (ASME)
- American Society for Testing and Materials (ASTM)
- American National Standards Institute (ANSI)
- American Petroleum Institute (API)
- National Association of Corrosion Engineers (NACE)
- Manufacturer’s Standardization Society (MSS)
Once a piping system is fabricated, the welds will be x-rayed and hydrotested. S-Con will standard 100% x-ray all x-rayable welds. Once all welds have been tested and pass, we will hydrostatically test the piping systems to 1.5x MAWP for a minimum of one hour. During this test, we chart the pressure and temperature using a Crystal nVision Pressure Recorder/Data Logger with integral RTD for temperature logging. In certain cases where you need to prevent from adding water to the system such as cryogenic piping, we will use nitrogen as the test medium. When performing a nitrogen air test, certain precautions need to be taken due to the potential hazards of pressurized air tests, which is why a detailed plan is put together based on our testing specifications, applicable codes and client approval.
All new process and utility piping systems are designed, fabricated, assembled, examined, inspected, and tested in accordance with the latest edition of ANSI/ASME B31.3 “Chemical Plant and Petroleum Refinery Piping”, and comply with design practices as defined within client provided or in-house specification and with all mandatory national, state, and local laws.
Structural Fabrication
S-Con, Incorporated has handled the structural steel fabrication on its own gas plant jobs for the past 30 years. At the same time, we have provided structural fabrication services of the following items on an individual basis for our clients. For clients that have drawings for fabricated structural that need built or if clients need design and build, S-Con, Incorporated can handle it.
The most common fabricated structures that we build include:
- Elevated Pipe Racks
- Sleeper Rack Structures
- Ladders
- Platforms
- Stairs
- Stiles
- Modular Skid Structures
- Pipe Bridges
- Custom Lifting Lugs
- Instrument Stands
- VFD Stands
- VFD Racks
- Pipe Shoes for Hot Insulated Lines
- Pipe Shoes for Cold Insulated Lines
- Adjustable Base Ell and Line Support
- Fixed Base Ell and Line Support
- Adjustable Base Ell and Line Support for Cold Lines
- Standard Sliding Two Bolt Pipe Clamp
- Standard Sliding Four Bolt Pipe Clamp
- Horizontal Base Supports for Screwed and Socket Weld Piping
- Directional Restraints for Cold Lines
- Vessel Support Guide for Downcomers
