Welker’s patent pending pumpless, pressure-driven odorant injection system is a complete solution for proportional to flow odorization for flow rates from 25 Mscfh up to 8 MMscfh and pipelines with a maximum allowable operating pressure of 1480 psig.
Welker’s innovative new turnkey odorization system ensures consistent odorant injection without the use of a pump. Like our automatic pumpless vapor injection system, the PulseInject™ uses differential pressure and solenoid operation to odorize your natural gas line, but it adds the real-time liquid odorant measurement of our standard injection system, allowing the Programmable Logic Controller (PLC) to continue proportional to flow odorization when flow conditions change.
Without odorant pumps, the PulseInject™ is a low maintenance injection system. The flow of conditioned unodorized upstream gas through the system is managed by solenoid valves controlled by the PLC. The Welker F-9 Filter on the odorant line and Welker F-5 Filter Dryer on the gas line remove contaminants, prolonging the operational life and reliability of the solenoids, and identical redundant solenoids limit interruptions to operation.
The intuitive touch screen controller makes system monitoring and troubleshooting easy. If you can’t navigate the menu-driven system on site, the controller’s Modbus capabilities allow you to remotely review current system performance and time- and date-stamped audit data and alarm history. Save historical records to the installed microSD card and export to a CSV file for accurate reporting, planning, and scheduling.
From 20 gallons to 10,000 gallons, the odorant supply tank can be sized to suite a broad range of flow rates. Regardless of volume, each tank comes with 110% containment sloped to the drain to protect against contamination and ease clean up.
|Materials of Construction||316/316 L Stainless Steel, Painted Carbon Steel, PTFE, Kalrez®, Viton®|
|Ambient Temperature||-4 °F to 120 °F*|
|Power||DC 24 V
|AC 120 V|
|Optional Solar Panel|
|Injection Outlet Connection||1/4" Tubing|
|Instrument Gas Connection||3/8" Tubing|
|Odorant Inlet Connection||3/8" Tubing|
|Vent Connection||3/8" Tubing|
|Odorant Tank Volume||120 US Gallon|
|250 US Gallon|
|325 US Gallon|
|500 US Gallon|
|1000 US Gallon|
|Injection Volume||.1 cc – .5 cc (Low Flow Rate)|
|.5 cc – 15 cc (High Flow Rate)|
|Injection Rate||Up to 15 injection per minute|
|Injection Pressure||Up to 1480 psig|
|Operating Pressure||1480 psig @ -4 °F to 120 °F|