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Valve Inspection Services

 

LLOYDS Inspection Agency America LLC provides comprehensive Valve Inspection Services to verify the quality, performance, and compliance of industrial valves used in critical industries such as Oil & Gas, Petrochemical, Power Generation, Marine, and Industrial Manufacturing.

Industrial valves play a critical role in controlling the flow of fluids, gases, and chemicals in pipelines and processing systems. Any failure in valve operation can lead to operational shutdowns, safety hazards, environmental risks, and financial losses.

LLOYDS performs independent third-party valve inspection services to ensure that valves are manufactured, tested, and delivered in full compliance with engineering specifications, international standards, and project requirements.

Our inspection services help clients verify valve integrity throughout the entire procurement and manufacturing process.

  1. Scope of Valve Inspection Services

LLOYDS provides inspection services covering all stages of valve manufacturing and testing, including:

  • Raw material inspection
    • Manufacturing inspection
    • Dimensional inspection
    • Welding inspection
    • Non-destructive testing (NDT)
    • Hydrostatic pressure testing
    • Functional testing
    • Coating and painting inspection
    • Final inspection and release

These inspections ensure that valves meet both technical specifications and operational performance requirements before delivery to the client.

  1. Types of Valves Inspected

LLOYDS Inspection Agency America LLC performs inspection services for a wide range of industrial valves used in process industries.

Common valve types inspected include:

  • Gate Valves
    • Globe Valves
    • Ball Valves
    • Butterfly Valves
    • Check Valves
    • Control Valves
    • Pressure Relief Valves
    • Safety Valves
    • Plug Valves

These valves are widely used in oil refineries, petrochemical plants, power stations, pipelines, and offshore platforms.

  1. Raw Material Inspection

Valve inspection begins with verification of raw materials used in manufacturing.

Inspection activities include:

  • Verification of material certificates (EN 10204 3.1 / 3.2)
    • Chemical composition verification
    • Mechanical properties verification
    • Material traceability checks
    • Positive Material Identification (PMI)

Material verification ensures that correct materials are used according to project specifications and international standards.

  1. Manufacturing and Fabrication Inspection

During manufacturing, LLOYDS inspectors monitor production activities to verify compliance with approved procedures.

Inspection activities include:

  • Forging and casting inspection
    • Machining inspection
    • Heat treatment verification
    • Assembly inspection
    • Surface finishing verification

Manufacturing inspection ensures proper fabrication quality and compliance with engineering drawings.

  1. Dimensional Inspection

Dimensional inspection confirms that valve components meet the specified dimensions and tolerances.

Inspection activities include:

  • Measurement of valve body dimensions
    • Flange face verification
    • Seat alignment verification
    • Stem alignment verification
    • Thread and connection verification

Dimensional verification ensures that valves will properly fit into pipeline systems and operate as intended.

  1. Welding Inspection

For welded valves or welded components, LLOYDS performs welding inspection to ensure weld quality and structural integrity.

Inspection includes:

  • Welding Procedure Specification (WPS) verification
    • Procedure Qualification Record (PQR) review
    • Welder qualification verification (WPQ)
    • Weld visual inspection
    • Welding process monitoring
    • Non-destructive testing witness

These inspections ensure welding compliance with international welding standards.

  1. Non-Destructive Testing (NDT)

LLOYDS performs and witnesses NDT methods to detect internal defects in valve components.

Common NDT methods include:

  • Ultrasonic Testing (UT)
    • Radiographic Testing (RT)
    • Magnetic Particle Testing (MT)
    • Dye Penetrant Testing (PT)
    • Visual Testing (VT)

NDT helps identify cracks, inclusions, porosity, and other structural defects.

  1. Hydrostatic Pressure Testing

Hydrostatic testing verifies the ability of the valve to withstand operating pressure without leakage or structural failure.

Inspection includes:

  • Shell pressure testing
    • Seat leakage testing
    • Backseat testing

Hydrostatic testing confirms valve strength and sealing capability.

  1. Functional and Operational Testing

Functional testing ensures that the valve operates correctly under simulated operational conditions.

Inspection activities include:

  • Opening and closing operation verification
    • Torque verification
    • Actuator performance testing
    • Control system verification for automated valves

These tests confirm reliable valve operation in real industrial conditions.

  1. Coating and Painting Inspection

Surface protection is important to prevent corrosion and extend valve service life.

Inspection activities include:

  • Surface preparation verification
    • Coating thickness measurement
    • Paint quality verification
    • Corrosion protection inspection

Proper coating ensures durability in harsh industrial environments.

  1. Final Inspection and Pre-Shipment Verification

Before shipment, LLOYDS performs final inspection to verify:

  • Valve identification and marking
    • Nameplate verification
    • Documentation review
    • Packaging and preservation
    • Shipment readiness

This ensures that valves are delivered to the client in full compliance with project specifications.

  1. Applicable Standards and Codes

Valve inspection services by LLOYDS follow internationally recognized engineering standards including:

  • API standards (API 6D, API 598, API 600, API 602)
    • ASME B16 valve standards
    • ISO valve standards
    • ANSI standards
    • Client project specifications

Compliance with these standards ensures valve reliability and safety.

  1. Valve Inspection Reporting

After inspection activities, LLOYDS provides detailed reports including:

  • Valve inspection reports
    • Test witnessing reports
    • Non-conformance reports (NCR)
    • Photo documentation
    • Final inspection release notes

These reports provide clients with complete documentation verifying valve quality and compliance.

  1. Industries Served

Valve inspection services by LLOYDS support multiple industrial sectors including:

  • Oil & Gas
    • Petrochemical Plants
    • Power Generation
    • Marine & Offshore
    • Water Treatment Facilities
    • Industrial Manufacturing

Valves are critical components in these industries where flow control and system safety are essential.

Commitment to Quality and Reliability

LLOYDS Inspection Agency America LLC is committed to providing reliable valve inspection services that ensure product quality, operational safety, and compliance with international standards.

Our independent inspections help clients maintain confidence in their supply chain and ensure the reliability of valve systems used in critical industrial operations.