Ammonia Tank Entry & Internal Inspections

OSHA & PSM-Compliant Integrity Testing & Internal Vessel Certification

Opening an anhydrous ammonia vessel for internal inspection demands a rigorous, data-driven approach to safety and structural compliance. NH₃ Services provides comprehensive, turnkey tank entry and internal inspection protocols designed to satisfy OSHA, EPA, and Process Safety Management (PSM) mandates.

We drain deep oil accumulations, remove system debris, and utilize advanced Non-Destructive Testing (NDT) alongside certified API 510 Pressure Vessel Inspections to verify structural integrity before your tanks go back online:

  • Certified API 510 Inspections: Full compliance auditing, remaining life calculations, and structural integrity certification to meet strict state regulations and insurance mandates.
  • Magnetic Particle & Wet Fluorescent Testing (MT): Crucial for detecting microscopic stress corrosion cracking (SCC) along internal weld seams.
  • Ultrasonic Thickness (UT) Gauging: Verifying nominal wall thickness to ensure the vessel can handle specified vapor pressures safely.
  • Relief Valve Certification & Swaps: We track relief valve expiration dates, identify piping layout anomalies, and replace critical valves on-site to maintain system integrity.

If an inspection uncovers structural thinning, cracking, or an incorrect system piping design due to vapor pressure anomalies, we don't leave you searching for an outside contractor. Because we are vertically integrated with EEServ, our field operations team can instantly escalate structural anomalies to our in-house ASME code engineering hub to model repairs and coordinate directly with Casa Grande Machine & Welding for custom replacement components.


Anhydrous Ammonia Services Equipment

NH₃Services can dispatch its ammonia service equipment for a variety of needs, from ammonia tank to truck, tank to tank transfer or complete pump out service, vapor removal and human entry into the tank. NH₃ Services does this and conserves all of the ammonia, generating no EPA reportable waste for the site to handle such as with flaring or sparging the vapors. We capture all ammonia vapors and return them to your system as a liquid into one of your other tanks or to a anhydrous ammonia tanker truck if required.

Tank Being Drained

OPENING THE TANK

NH₃Services has the equipment and experience that allows us to transfer and/or remove ammonia liquid from your tank and then vacuum out the remaining vapors. We can then safely open the tank and allow NDT personnel to inspect the internal surfaces of the tanks. This is the most reliable and trustworthy type of examination for stress corrosion cracking.


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THE NATIONAL BOARD OF BOILER AND PRESSURE VESSEL INSPECTORS

SAFETY FIRST

NH₃ Services first concern is safety and controls its own confined space program. We check the gas levels in the tank prior to each new entry and provide continuous monitoring during internal inspections. We use our own posted, dedicated hole watch that controls the space and entry to it and is in communication with the inspection team in the tank.'s

INSIDE THE TANK

Upon entry, the tank is inspected for dirt, oil, and other debris. If required, we may ask that the tank is cleaned prior to inspection. We then perform an NDT inspection for small cracks along the weld seams using photoluminescent magnetic particles. This is followed by a UT inspection to check for shell thickness. We always use our certified NDT lab and inspectors for the inspections.
Ammonia Tank Inspection in Temecula, CA

UP TO CODE

We are an ASME code shop, so you can be certain we have the expertise to correctly identify and correct vessel maintenance issues and return the tank to service with minimal interruptions. We take ammonia tank inspections seriously to provide you with safe, tested and inspected equipment.