Refrigeration Services

Maintenance Services
Inspection, Testing & Maintenance

NEAS understands that your refrigeration system is critical to thesuccess of yourbusiness. Malfunctions and failures often result in financial loss. Preventative and planned maintenance is one way to ensure the least amount of downtime to your critical systems. Our Planned Maintenance programs provide customized Inspections, Testing, and Maintenance that meet the industry standards set forth by NEAS and help minimize unplanned downtime.

IIAR 6 inspections

IIAR (International Institute of Ammonia Refrigeration) continues to work diligently to help keep the industry as safe and vigilant as possible. They’re latest development of standards has set forth the minimum requirements for inspection, testing, and maintenance for closed-circuit ammonia refrigeration systems, the IIAR – 6 Inspections. All ammonia refrigeration systems, above and below the PSM/RMP 10,000lb threshold, will soon be REQUIRED to adhere to these specific inspections annually.

mechanical intergrity

Mechanical integrity (MI) is just one of the 14 elements included in Process Safety Management (PSM), driven by the OSHA 1910.119 standard, which reads that “Mechanical Integrity means the process of ensuring that process equipment is fabricated from the proper materials of construction and is properly installed, maintained, and replaced to prevent failures and accidental releases.” Mechanical Integrity is primarily centered around fixed equipment. Some examples might be pressure vessels, dispersion tanks, piping systems and attached hardware (valves, fittings, etc), relief devices, vent hardware, and emergency shutdown/control systems. Rotating equipment/assets, such as pumps, blowers, fans, and compressors that may be used to move hazardous materials within these systems, are also included. In many cases, this means that all equipment within the boundaries of a facility is subject to the Mechanical Integrity PSM standard.

Mechanical Integrity (MI)


It is a priority of the PSM standard to maintain the mechanical integrity (MI) of critical process equipment to ensure it is designed and installed correctly and operates properly. Our qualified inspectors have the industry experience you’re looking for to provide the technical and thorough results needed to help maintain a safe and compliant refrigeration system. NEAS inspectors are experts on the most current industry standards as well field experience.The International Institute of Ammonia Refrigeration (IIAR) requires Mechanical Integrity Inspections to be conducted by a qualified inspector(s) every fifth (5th) year at a minimum.Such MI requirements apply to the following equipment:

  • Pressure vessels and storage tanks;
  • Piping systems (including piping components such as valves);
  • Relief and vent systems and devices;
  • Emergency shutdown systems;
  • Controls (including monitoring devices and sensors, alarms and interlocks) and;
  • Refrigeration Equipment
  • General Safety
Visual Testing (VT)

The oldest and most basic form of non-destructive testing, traditional visual testing involves our technicians inspecting equipment with their eyes to determine any visual defects. We offer visual inspectors that are certified to a variety of industry codes and regulations.

Often the first technique that we utilizes at the outset of a project, we provide a variety of visual inspection (VT) services to multiple industries. The method is useful for determining a project’s scope, establishing the extent of existing damage, and informing the technician of where more advanced, in-depth inspections are needed.


Ultrasonic Testing (UT)

Conventional Ultrasonic Testing (UT) inspection is a commonly-used non-destructive testing (NDT) technique that measures the propagation of mechanical vibrations (ultrasonic waves) through a material to examine properties, measure thickness, determine elasticity, and detect a range of discontinuities, including corrosion/erosion, flaws, cracks, and more.

An NDT) staple, our technicians utilize conventional ultrasonic testing (UT) to detect surface and sub-surface defects and supply accurate readings regarding discontinuity size and shape. Ultrasonic surveys are used as the main inspection technique for a plant’s erosion/corrosion programs, and are utilized extensively at all of our customers’ locations.

Penetrant Testing (PT)

A traditional, relatively simply method of field or lab non-destructive testing, Penetrant Testing (PT) is used for finding surface-breaking discontinuities on relatively smooth, nonporous surfaces. It is based on the properties of capillary action, or the phenomenon of a liquid rising or climbing when confined to a small opening. After the excess penetrant is removed and a developer is applied, a trained inspector can identify any remaining penetrant that may indicate a flaw.

Also referred to as Liquid Penetrant Inspection (LPT), Penetrant Testing (PT) is used on non-ferrous materials such as metals, composites, and ceramics, identifying surface anomalies such as cracks, seams, laminations, blow holes, laps, external bursts and welding defects.

Real Time Radiography (RTR)

Real-Time Radiography (RTR) –  Real-Time Radiography (RTR), emits radiation into one side of a material and uses sensors on the other side to convert the rays into light, producing a digital image that reveals corrosion, and internal/external defects in real time. RTR is a safer and quicker alternative to traditional radiography, requiring no need for a dark room to produce images. NEAS uses an industry leading third party to supply RTR services to customers who are interested in this level of inspection.

Non-Destructive Testing (NDT)

Non-Destructive Testing (NDT) is the use of technology to examine an object or material’s structure, imperfections,
composition or properties without destroying or compromising the object or material’s future use. NDT provides information about state of material that one cannot capture visually or would require a great deal of manual effort. Used in every industry that relies on a piping infrastructure, results from NDT give the information necessary for informed decision-making.

Contact Us