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NEW: ES Herdman ULT

The ES Herdman ULT is designed for organizations that require large-capacity storage without compromising temperature performance or system reliability. Named in honor of our own Tom Herdman—one of the foremost engineers in bulk ultra-low temperature storage systems—this ULT provides secure, long-term preservation of critical pharmaceutical, biotechnology, and life science materials. 

Unlike our well-known Ultra-Low Temperature Suites that require dedicated permanent infrastructure, the ES Herdman ULT can be installed within an existing freezer room while delivering the same durability, temperature performance, and product protection expected from a purpose-built ULT storage environment. This flexible standalone design allows facilities to expand ultra-low temperature storage capacity while minimizing facility modifications, construction costs, and increasing energy efficiency. 

Engineered with 100% refrigeration redundancy, the ES Herdman ULT delivers continuous protection in the event of a refrigeration system failure. A convective natural-draft airflow design maintains +/- 4°C temperature uniformity throughout the storage environment, supporting consistent product conditions across the entire chamber volume without the risk of potentially dangerous outflows from forced-air fans when a door is opened. 

To further protect inventory, it features OverShield® by Predictive Monitor for 24/7 visibility into critical components and system health. Combined with redundant refrigeration, OverShield® provides added confidence that valuable materials will remain protected when uninterrupted temperature performance matters most. 

The ES Herdman ULT is suitable for a wide range of industries and applications, including:

  • Biorepositories 
  • Research institutions
  • Pharmaceutical manufacturers
  • Biotechnology
  • Life sciences

Herdman

With all of the same reliability of our traditional ULT Suites, the ES Herdman ULT allows for greater flexibility in space utilization without sacrificing freezer quality.

Sizes:

  • OD (W x D x H): 30'-6" x 5'-3" x 11'-0"
  • ID (W x D x H): 29'-6" x 4'-3" x 10'-0"
  • Weight: 6,500 pounds
  • Storage capacity: 1003ft³ 

Capabilities:

  • Temperature range: -40°C to -70°C
  • Temperature uniformity: ± 4°C
  • Ambient conditions: -20°C, <5 percent RH
  • Cooling/airflow method: Convective/natural drift
  • Door quantity: 6
  • Capacity per door: 167ft³
  • Refrigerant selection: R-744(CO2) and R-508B
  • Redundancy (Mechanical): 100% 
  • Electrical utilities required (per system): 460 V / 3 PH / 60 A
  • Controls: Allen-Bradley CompactLogix
  • User Interface: PLC & 10” Touchscreen
  • Dry air utility required (optional): 23 CFM and -120° F, dew point minimum 
  • Cooling water required (per system): 9 GPM at 45° F
  • Air cooled system optional
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  • “Thanks again for the support in getting us to this stage eventually – finding an incubator that meets our temperature spec has been a challenge for us for the last few years and this is a significant milestone for the business. Hopefully we will have more good news to report in the new year.”

    Project Engineer, Major Biotechnology Manufacturer

  • “During a recent external audit, an inspector requested the PM/Cal documents for the stability chambers. It was my pleasure to give him the nicely presented binders. I could tell he was impressed.

    Thanks for the great service you have provided for us over the years.”

    Teresa P, Taste Texture and Health, DSM-Firmenich

  • “Environmental Specialties has always provided me with great service. All the individuals I worked with were knowledgeable about ES products and services.  They were highly skilled. I relied on ES for pm, calibration, qualification, repair, chamber sourcing and consultations. I interacted with a lot of your employees.  The feedback was always spot on. They were always smiling and supportive even in the most difficult situations. ES is a great company with good people.”

    Judy S., Senior Laboratory Technical Support Specialist, Merck Wilson

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