Problem:

A large semi-conductor manufacturer needed to perform a 60,000 gallon per minute flush on a facility with limited space for necessary flushing equipment. The tight jobsite constraints ruled out the use of vertical round bag filters based on the available footprint.

Solution:

United Rentals specialists met with the customer to discuss available options. Following the job walk, UR presented a customized solution utilizing 17 high-flow horizontal bag filters allowing the customer to meet the challenging conditions of the limited jobsite footprint. Further, space limitations meant there wasn’t enough room to connect the filters to the headers with a hose. United Rentals proposed and custom-built HDPE spool pieces to exact specifications, enabling connections from the filters to the headers. The spool pieces required multiple angles and offsets to connect the headers and filters together.

Problem:

A large data center customer had multiple flushes to complete in a tight time window and planned to move the equipment from one flush to another as flushing was completed. Everything went according to plan until the second flush. Due to unforeseen circumstances, it became evident that the equipment needed to stay in place on the second flush to keep the water flowing. The owner wasn’t ready to accept the turnover of the system. This put flushes three and four in danger of not meeting the required deadline for completion.

Solution:

The data center customer called United Rentals and explained the situation expressing a need for an identical setup as the one they were currently using. The flushes utilized three 12’ electric drive pumps with VFDs and six 23 bag filters, flanged fittings, and numerous hose lengths, all required to be clean room certified. The equipment needed to be onsite seven days from the call.

With access to the largest fleet of rental equipment in North America, the local branch was able to source equipment quickly. As trucks rolled in with equipment, they were unloaded and underwent a complete inspection and test protocol. The VFDs were programmed and tested with the pumps.

Although 12” clean room flanged hose proved difficult to source due to high utilization on other projects, United Rentals Fluid Solutions was able to use its trusted partners to purchase and ship enough new hose to meet the customer’s deadline.

Problem:

A large semi-conductor manufacturer needed to perform multiple flushes on a portion of their new chip fab building. The only access to the flushing point of connection (POC) was inside the building on the second floor. To access the second floor and enable proper placement, equipment needed to conform to specific size specifications to fit in an elevator. Further, second-floor loading limitations had to be considered as the required equipment exceeded the working load rating of the floor when plumbed together. The customer also wanted to perform multiple flushes of various size pipes with the same equipment.

Solution:

After completing a detailed job walk with the customer, United Rentals compiled all necessary requirements that the flushing equipment needed to be lifted and then placed properly for the project. UR modified its variable frequency drives (VFD) to fit into the elevator and installed casters on all equipment so it could be easily rolled into position. Utilizing a custom-built manifold and numerous lengths of hose, United Rentals spread the equipment out in such a way that the completed system complied with the second-floor load rating.

Finally, United Rental’s Variable Frequency Devices (VFDs) allowed the customer to flush different size lines using the same equipment. For the smaller lines they were able to slow the pumps down and stay within the owner’s parameters.