The UNASPHERE is precision moulded of neoprene and nylon. It requires less force to move than conventional expansion joints allowing maximum deflection, elongation and compression. The UNASPHERE will minimize water hammer or hydraulic shock in any system. #150 ASA drilled flanges.
UNASPHERE Style 800
The UNASPHERE design is inherently stronger than other configurations because of it’s spherical shape. Pressure exerts itself evenly in all directions and so distributes the forces evenly over a large area. The streamlined, flowing arch reduces turbulence and allows smooth, quiet flow. Sediment cannot build up, therefore, there is no need to fill the arch and thus restrict its movements. All joints rated for 26″ HG vacuum and 225 PSI WP except 14″ which is rated for 115 PSI.
UNASPHERE Style 800 Size, Movement, Pressure, Weight
|Face-to-Face (in.)||Flange Thickness
|No. of Holes||Thread Size||Allowable Movement|
|Lateral Deflect (in.)||Elongation
|Angular Movement (Degrees)||Weight Joint & Flanges|
“TWIN-SPHERE” Style 802
The TWIN-SPHERE is precision moulded of neoprene and nylon tire cord. The double arch design allows for greater movement four different ways and provides a non-turbulent flow. Angular movement up to 30° is obtainable with it’s highly flexible design. Rated for 225 PSI WP at 170°F. Pressure is reduced at higher temperatures. Vacuum rating to 26″ HG.
|Lateral Movement (in.)||Angular Movement (Degrees)||Weight Joint & Flanges|
“TWIN-SPHERE” Style 803
This highly capable, low-cost expansion joint is available for smaller diameter piping systems found in power plants, chemical plants, waterworks, sewerage, residences, etc.
The TWIN-SPHERE provides excellent vibration absorption and stress relief in light, compact construction.
- Size: 1/2″ thru 3″
- Compression: 3/4″
- Extension: 1/4″
- Lateral: 3/4″
- Angular: 45°
- Temperature: 250°
- Operating Pressure: 150 psi
- Vacuum rating: 15″ HG
- Diameters available in 3/4″, 1″, 1-1/4″, 1-1/2″ and 2″