Welker Engineering Pte. Ltd. Product Catalog 2002
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Odorization System
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Ecosystem B/U
Environmentally Clean Odorizer Systems from OdorEyes Technologies are designed to provide safe, reliable and clean odorization of natural gas in your pipeline. Ecosystems have no pump to fail, no seals to leak and no moving parts - giving you a more maintenance-free system and giving us all a cleaner environment.

The Ecosystem B/U Pulse Gas Odorizer takes bypass odorizing to a new level. Using today's technology, we can overcome the problems associated with the old conventional buried bypass odorizer. The most significant advance in bypass technology has been the introduction of the bypass odorizer. Rather than relying on a constantly changing differential pressure across a restriction in the pipeline, the pulse-bypass odorizer pulses a known volume of gas through the odorant tank proportional to flow. This makes it a true flow tracking odorizer. The unique control technology incorporated in the Ecosystem B/U can provide continual odorization even in the event of loss of meter signal or power failure. The pulse bypass system can operate accurately down to zero flow and will never vapor lock. It is ideal for stations that may periodically cease operation or go to extremely low flow. When the flow returns or increases it will remain accurate and reliable. Additionally, the system can be equipped with a temperature sensor in the odorant tank. The bypass flow is adjusted to compensate for changes in odorant vapor concentration due to temperature changes. This OdorEyes feature allows the tank to be either buried or above ground and remain accurate.

The Ecosystem B/U is intended for natural gas pipeline or similar installations with flow rates less than one million standard cubic feet per hour. For greater flow rates, OdorEyes™ Technologies offers the Ecosystem A/T pumpless odorizer or Accu/Line Injection style odorizer.
Simplified piping diagram of typical Ecosystem

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