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Girard Industries
6531 N. Eldridge Pkwy
Houston, TX 77041-3507

Toll Free: 800.231.2861
Phone: 713.466.3100
Fax: 713.466.8050

Girard has consistently controlled
manufacturing quality and design
integrity to assure maximum pipeline
cleaning performance.

Girard solid and inflatable polyurethane spheres are manufactured in a range of durometers for pipeline and meter prover applications. Neoprene, Nitrile and Viton spheres are also available for special applications.  To achieve the maximum performance Girard inflatable spheres must be properly filled and sized. Specific applications will determine the most effective sizing and filler fluid to be used.

Typical Sphere Applications

Liquid Batch Separation
- Girard spheres are used for separating various products such as gasolines, fuel oils, crude oils, jet fuels, and other petroleum products transported through a pipeline. Product integrity is maintained while navigating tees and ells.

Line Testing - Girard spheres purge air from the pipeline to insure accurate hydrostatic testing. This is achieved by inserting a sphere ahead of the water column which displaces the air. Girard spheres can remain in the line throughout all phases of testing. Once the test is complete, the spheres are used to dewater the pipeline.

Line Maintenance - Girard spheres maintain pipeline integrity by removing paraffin and condensate. During pipeline corrosion control maintenance, spheres are used to batch corrosion inhibitors.

Meter Prover Spheres - Girard spheres gauge volume displacement to confirm the accuracy of flow meters.

Sphere Pump - A sphere pump is recommended to properly inflate a Girard sphere. The pump is easy to operate by placing the appropriate fluid in the filling cup, attaching the hose to the valve body in the sphere, and manually pressing the handle. The pump and attachments are available from Girard Industries. Please click here for sphere pump details and filling instructions.

Inflatable Urethane Sphere Features

  • Separate fluids being transported through a pipeline, minimizing product contamination.
  • Purge air and dewater during hydro static testing.
  • Confirm accuracy of flow meters.
  • Pass through out-of-round pipe.
  • Navigate through tees, ells, and full port valves.
  • Suitable for automatic launching.
  • Remove condensate and paraffin build-up.

Girard manufactures the largest brand of sphere sizes available with up to 5 different sizes per nominal pipe diameter.  This increases the life and performance of Girard spheres by eliminating the need to inflate the sphere.  Simply fill and run.  For a breakdown of sphere sizes click on one of the links below.

Pipeline Sphere Sizes

Pipeline Prover Sphere Sizes

Neoprene & Nitrile Pipeline Sphere Sizes

Sphere Pump Filling & Sizing Instructions (PDF) - Please click on the above link for sphere pump details and filling instructions.

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