Flare Knockout Drum and Underground Piping

Background & Application (Vessel)

Ar-Tech was contracted to complete the exterior and interior coating work for a flare knockout drum and associated underground piping for a large Alberta producer of crude oil. The project was to be completed in two stages. The first stage was the drum and associated pipe. The second was the underground pipe. Each piece of pipe is identified for lot control traceability. All work was completed at the Ar-Tech shop and subject to 3 rd party inspection prior to delivery.

Application (Pipe)

Additional underground piping was specified to be coated internally with Devchem 256 and externally with Novocoat SC-2200, a 100% solids epoxy. SC-2200 is designed as an exterior coating for the buried pipe. The fast reactivity of this coating (pot life at 25°C is 9 minutes) requires the use of a plural pump for the application. Ar-Tech uses a Graco XP70with electronic pressure monitoring of A & B components to ensure ratio mixing, an important control point for plural spraying.