479 Business Center Dr., Suite 105 Mt. Prospect, IL 60056
(847) 297-2265

Safety Systems

Safety requirements are of paramount importance in the design and operation of a pilot plant, even more so than in a commercial facility. Since pioneering the business of modern pilot plants, Unitel’s partners have paid critical attention to the subject of safety. We have engineered and evolved the concept of multi-tier safety wherein each level is carefully configured to execute an independent safety function and/or cause the system to revert into an appropriately designated safety mode when any upset or out-of-bounds condition occurs.

System Design Philosophy: Our safety philosophy is based upon the assumption that the default condition of a system is one in which everything is working properly as planned. However, when a process unit begins to approach an undesirable condition, the appropriate safety action must be taken. This action is facilitated by an adequately designed and instrumented system.

The design philosophy of the multi-level safety system implemented by Unitel, that includes five (5) independent tiers of action, is enunciated below:

Tier 1: Low-High Alarms Wrapped Around Transducers
Tier 2: Low-Low and High-High Alarms
Tier 3: Hardwired Switches (Analog and Digital)
Tier 4: Emergency Palm Stop Switch
Tier 5: This level incorporates two kinds of mechanical devices into the safety system.

Mechanical Integrity: Safety in any process system is reliant on the design and fabrication of the pressure containing parts. Unitel utilizes the highest standards in the mechanical design and fabrication of our systems.

Where applicable the pressure vessels will be designed, built and tested in accordance with ASME BPVC Section VIII. All other vessels will be designed, built and tested in accordance with ANSI B31.3, Process Piping.

Process Hazard Analysis (PHA): We encourage all of our clients to undertake a process hazard analysis for the systems we design and build. Unitel requests to take an active part in participating in these analyses. The PHA is always conducted by a certified leader.

The PHA involves one of the analysis methodologies: What If, Checklist, What If/Checklist, FMEA, HAZOP, LOPA, Fault Tree Analysis, etc.

Services

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CE
Conceptual Engineering

The early stages of front end project and process development are critical for the future success of projects involving new technologies and processes.

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FS
Feasibility Study

The feasibility study phase generally consists of a technical and economic analysis to investigate the probable outcomes of a project.

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FEED
Front End Engineering & Design (FEED)

The feasibility study phase generally consists of a technical and economic analysis to investigate the probable outcomes of a project.

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DED
Detailed Engineering & Design

This is the initial phase in the execution of the project. The objective of this phase is to develop all detailed engineering and design drawings and documents.

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P
Procurement

Procurement policies and procedures are of significant importance for implementing a project on schedule while retaining quality.

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F
Fabrication

Unitel maintains a leased facility for the fabrication of high quality modules. Good fabrication procedures and safety during fabrication are of critical importance to us.

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CS
Commissioning & Start-Up

Unitel provides installation procedures and guidelines to assist the client in installing the modules. We always provide appropriate personnel for this activity.

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