THE ORIGINAL INNOVATOR OF THE PIPELINE SPHERE
Long Wear Life!Premium Materials!Thicker Walls!
Long Wear Life!
Premium Materials!
Thicker Walls!
Maloney Spheres are specially designed and compounded for optimum resiliency, wear-resistance and long life, evidenced by our thick wall construction. Maloney pipeline spheres are compression-molded at cavity pressure exceeding 2000 PSI. We do not pour-cast nor rotational-mold any of our spheres. The compression molding process is critical to ensuring a uniform density of the compounded material and to yield a wear-life that is unmatched in the industry!
See information about The MALONEY SMART SPHERE™!*
* Patent No.: US 11,293,580 B2
Thickest wall in the industry
During sphere production, each molded hemisphere is subjected to an intensive physical inspection. Following assembly and post-curing, every sphere is inflated to a specified increased diameter for 24 hours. This critical step is taken to assure that every Maloney Sphere that leaves our factory will fulfill the exacting demands of the task for which it was designed. Inflatable spheres are available in 4″ sizes and larger. Solid spheres are available from 1-1/2″ through 4″ diameters in all materials. Limited larger solid spheres are available in polyurethane materials only. Refer to available size lists in Downloads.
USES OF MALONEY SPHERES
Maloney Spheres have the following uses:
- Liquid displacer in Meter Prover Loops
- Liquid product separator
- Signal actuating device
- Two-phase flow
- Hydrostatic testing
- Liquid removal in gas lines
Maloney Sphere Advantages
Maloney Spheres will pass through short bends, properly designed tees and full-opening conduit type valves. They will pass through out-of-round pipe, will wear evenly, and can be wear-compensated by adjusting the diameter by inflation. Our heavy wall construction gives unmatched service life.
General Recommended Service Applications
| Sphere Type | Minimum | Maximum | Durometer | Recommended Use |
| Neoprene | -20 Deg. F (-29 Deg. C) |
280 Deg. F (138 Deg. C) |
60 +/- 5Shore A | General purpose, pipeline, hydrocarbon & chemical service |
| Nitrile | -15 Deg. F (-25 Deg. C) |
212 Deg. F (100 Deg. C) |
60 +/- 5Shore A | Exposure to n-octane, hydrocarbons & petroleum gas, water, gasoline, and diesel oil |
| Hi-Temp Nitrile | -15 Deg. F (-25 Deg. C) |
325 Deg. F (162 Deg. C) |
70 +/- 5Shore A | For use in geothermal applications, hot asphalt pipelines and general pipeline service in elevated conditions |
| Polyurethane U-53 (Yellow) |
-20 Deg. F (-29 Deg. C) |
in oil 170 Deg. F (77 Deg. C) in water 140 Deg. F (60 Deg. C) |
53 +/- 5Shore A | Meter prover service, low temperature distillate removal service |
| Polyurethane U-58 (Green) |
0 Deg. F. (-18 Deg. C) |
in oil 170 Deg. F (77 Deg. C) in water 140 Deg. F (60 Deg. C) |
58 +/- 5Shore A | Gas distillate removal at greater than 600psi. Long line distillate removal service where temperatures are 60 Deg. F. or greater |
| Polyurethane U-66 (Red) |
0 Deg. F. (-18 Deg. C) |
in oil 170 Deg. F (77 Deg. C) in water 140 Deg. F (60 Deg. C) |
66 +/- 5Shore A | Gas distillate removal at greater than 600psi.General pipeline usage for situations requiring long runs or when pipeline is especially rough |
| Polyurethane U-88 (Blue) |
0 Deg. F. (-18 Deg. C) |
170 Deg. F (77 Deg. C) |
88 +/- 5Shore A | For heavy duty removal of liquid hydrocarbons and condensates, and for pipelines with highly corrosive products |
Low-Friction SLC Spheres and stainless steel valves are available
Recommended Liquid Fillers for Pipeline Spheres
| Temperature, Degrees F |
Filler |
|
< 32 |
50% Ethylene 50% Water |
|
32 – 150 |
Water |
|
>150 |
Glycerol |
Sphere Sizing Recommendation
- 2% over pipe ID