Recent Blog Posts

Mechanical Integrity 101 | Ceiling Suspended Air-Cooling Evaporators

July 1st, 2013

When performing a mechanical integrity inspection of a ceiling suspended air-cooling evaporator, it is vital that the nuts and washers which are used to attach the unit to it’s support are sufficiently tight. All-to-often we find nuts that have loosened due to vibration or missing washers. A ceiling suspended evaporator is designed to be supported […]

Ammonia Week in Review | June 28, 2013

June 28th, 2013

Here are some excerpts from the most important ammonia stories over the past week… An Ammonia Fueled Car From South Korea – South Korean researchers have successfully road-tested a dual fuel passenger car that runs on a mixture of ammonia and gasoline. It is called the AmVeh and was developed by members of the Ammonia Research […]

Hansen Pressure Relief Valve Recall

June 27th, 2013

On June 21, 2013, Hansen issued a product recall on the following pressure relief valve models with serial numbers between 02B11 and 04B13: Hansen H5600A, H5601, H5602, H5600R, H5602R, and H5632R. These pressure relief valves (sold from February 16, 2011 to April 4, 2013) appear to be more susceptible to internal corrosion when exposed to standing water inside […]

Q&A | Relief Valve Discharge Piping

June 24th, 2013

Question: Is it permissible to use galvanized pipe on pressure relief valve discharge piping? Answer: As a “best practice” we recommend using the same piping materials for the closed circuit refrigeration system as for the relief valve discharge piping. Specifically, IIAR-2 states that piping in the closed circuit portion of the system should be of […]

Ammonia Week in Review | June 21, 2013

June 21st, 2013

Ammonia leaks plague the news in this edition of the Ammonia Week in Review… Anhydrous Ammonia Leak Contained In West Dickinson –  An anhydrous ammonia leak at an industrial park on Dickinson’s west side temporarily closed down Highway 10 and left area residents with a “shelter-in-place” order from Stark County. […keep reading] Ammonia Leak Prompts Shelter – Officials reported a […]