Quickflange™ 6” Hydrocarbon Tie-In – California, USA

Challenges

• Confined space constraints

• Hydrocarbon presence requiring a cold-work solution

Benefits

• No hot work or habitats required

• Reduced safety risks and personnel requirements

Scope

Confined spaces and the presence of hydrocarbons can make hot work impossible during pipework modifications, presenting both logistical and safety concerns.

At a facility in Torrance, California, a major multinational energy company was replacing a concrete sump that collected relief drainage from pressure relief valves (PRVs) throughout the system with a new PMC-fabricated tank.

The project required a new tie-in to a 6” carbon steel Schedule 40 pipe carrying crude oil, gasoline and diesel.

Solution

The customer engaged Pacific Mechanical Construction (PMC), a local construction and contracting company trained and qualified to deliver Quickflange™ installations, to complete the sump replacement and new pipework tie-in.

Quickflange™ provided a permanent, weldless solution for the flange-to-pipe connections required for the tie-in, eliminating the need for hot work and associated habitats while simplifying installation within the confined space.

The cold-work installation process uses a specialised hydraulic tool to swage the pipe into the pre-machined grooves of the Quickflange™ connector, forming a permanent connection. The connectors were then successfully pressure tested to confirm the integrity of the installation.

Results

• Quickflange™ successfully used to deliver permanent, weldless flange-to-pipe connections for the new tank tie-in

• Tie-in completed 12 hours ahead of schedule

• Fast, cost-effective installation despite confined space constraints

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