Specification

Pipe Spool Specifications

MRB Forge manufactures pipe spools in accordance with international standards and project-specific requirements.

Parameter Details
Size Range ½” NB to 60” NB
Material Grades Carbon Steel, Stainless Steel, Alloy Steel, Duplex & Super Duplex Steel, Nickel Alloys
Schedule SCH 10 to SCH XXS
End Connections Flanged, Welded, Threaded, Beveled Ends
Standards ASME B31.3, ASME B31.1, ASTM, ANSI, ISO
Fabrication Type Welded & Prefabricated Assemblies
Inspection Third-party inspection available
Testing Hydrostatic, Radiographic, Ultrasonic, PMI, Dimensional inspection
Types

Types of Pipe Spools

We manufacture a wide range of pipe spools based on design, connection type, and application requirements.

Welded Pipe Spools

Welded pipe spools are fabricated using high-precision welding techniques incorporating <a href="https://mrbforge.com/product/buttweld-fittings/">buttweld fittings<a> for strong leak-proof joints.

Welded Pipe Spools
Flanged Pipe Spools

Flanged pipe spools incorporate precision-engineered <a href="https://mrbforge.com/product/flanges/">flanges</a> for easy assembly and disassembly without cutting or welding on site.

Flanged Pipe Spools
Threaded Pipe Spools

Threaded pipe spools are suitable for low-pressure systems where welding is not required. They offer easy installation and maintenance flexibility.

Threaded Pipe Spools
Fabricated Pipe Spools

Fabricated pipe spools are custom-engineered assemblies designed based on project drawings, ensuring precise alignment and efficient installation at site.

Fabricated Pipe Spools
Custom Pipe Spools

We provide fully customized pipe spool solutions tailored to specific project requirements, including complex geometries, special materials, and unique engineering specifications.

Custom Pipe Spools

MRB Forge offers pipe spools in a wide range of materials to suit different operating conditions and environments.

Carbon Steel Pipe Spools

Carbon steel pipe spools are widely used in industrial applications due to their strength, durability, and cost-effectiveness. Common grades include ASTM A106, A53, and API 5L.

Stainless Steel Pipe Spools

Stainless steel pipe spools offer excellent corrosion resistance and are suitable for chemical, food processing, and marine environments. Grades include SS 304, 304L, 316, and 316L.

Alloy Steel Pipe Spools

Alloy steel pipe spools are designed for high-temperature and high-pressure applications that require enhanced mechanical strength.

Duplex & Super Duplex Pipe Spools

Duplex and super duplex pipe spools provide superior resistance to corrosion, especially in chloride-rich and offshore environments.

Nickel Alloy Pipe Spools

Nickel alloy pipe spools are ideal for highly corrosive and extreme temperature applications in chemical and petrochemical industries.

Dimensions, Sizes & Pressure Ratings

Our pipe spools are manufactured in a wide range of sizes and pressure classes to meet diverse industrial requirements.

  • Pressure Ratings: Class 150, 300, 600, 900, 1500, 2500
  • Size Range: Custom fabrication as per project drawings
  • Wall Thickness: As per schedule requirements (SCH 10 to XXS)
  • Design Flexibility: Straight, bent, multi-branch, and complex configurations

Each pipe spool is designed to ensure smooth integration into existing piping systems and compliance with international standards.

Pipe Spool Testing & Quality Assurance

Quality is a core focus at MRB Forge. Every pipe spool undergoes strict testing procedures to ensure safety and performance:

  • Hydrostatic Testing
  • Radiographic Testing (RT)
  • Positive Material Identification (PMI)
  • Ultrasonic Testing (UT)
  • Hardness Testing
  • Visual Inspection
  • Dimensional Inspection
  • Third-Party Inspection (TPI)

These processes ensure defect-free fabrication and long-term operational reliability.

MRB Forge ensures compliance with globally recognized engineering and fabrication standards:

Process

Pipe Spool Manufacturing Process

Our pipe spool fabrication process is designed to ensure precision, strength, and reliability:

  • Engineering Design & Drawing Approval
  • Material Selection & Inspection
  • Welding & Assembly
  • Cutting, Beveling & Fit-Up
  • Heat Treatment (if required)
  • Surface Finishing & Cleaning
  • Dimensional Inspection
  • Non-Destructive Testing (NDT)
  • Final Quality Approval & Marking

Each stage is carefully monitored to ensure compliance with project specifications and international quality standards.

Pipe spools are widely used across multiple industries due to their efficiency and ease of installation.

Oil & Gas Industry

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Used in upstream, midstream, and downstream operations requiring reliable and leak-proof piping connections.

Petrochemical Industry

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Suitable for complex process piping networks requiring accurate prefabricated spool components.

Power Generation Facilities

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Used in steam, cooling water and auxiliary piping systems across power generation plants.

Chemical Processing Plants

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Provide reliable prefabricated connections in corrosive and high pressure chemical processing environments.

Offshore & Marine Projects

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Designed for offshore platforms and marine installations requiring precision fabricated piping assemblies.

Refineries

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Widely used in refinery process piping for accurate and efficient spool based installations.

Water Treatment Plants

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Used in water distribution and treatment facility piping requiring efficient prefabricated solutions.