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Auto-switch boring / cutting tool

The innovative DeltaValve auto-switch coke cutting tool provides a high level of safety and reliability during de-coking operations by allowing the tool to remain in the drum during switching between boring/cutting modes. The auto-switch tool, in combination with the DeltaValve drill stem guide enclosure and the top unheading valve, provide maximum coker safety by allowing personnel to be removed from the cutting deck.

Flow channels in the auto-switch tool are optimized to provide maximum boring and cutting forces at the nozzle jets. Switching is accomplished by remotely reducing the pressure to the tool and then restoring the pressure. The boring/cutting modes are distinguished by different steady state pressures displayed at the operator’s panel and by a visual indicator on the tool.

In addition to the internal coke  nes screen, all internal mechanisms are isolated from exposure to cutting water and coke  nes for long-term reliability. No  eld lubrication is required.

Drill string connections are available in Flange-LokTM, Unibolt, RTJ, or engineered to order con gurations.

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Auto-switch boring / cutting tool

The innovative DeltaValve auto-switch coke cutting tool provides a high level of safety and reliability during de-coking operations by allowing the tool to remain in the drum during switching between boring/cutting modes. The auto-switch tool, in combination with the DeltaValve drill stem guide enclosure ...


DeltaValve retractable center feed injection device

The introduction of DeltaValve’s fully automated coke drum unheading valve in 2001 necessitated the development of side feed entry into the coke drum. No longer was it possible to feed resid into the coke drum through the bottom  ange as was standard with traditional manual or semi-automated ...