 Series J12 threaded double sphere rubber expansion joint is designed to compensate various movements in pipeline, such as the movements by heat-generated expansions, settlements of terrain or building structures, rolling movements and assembly errors, machinery vibrations, water hammers, etc.
FEATURES • All rubber compounds for lining are specifically formulated to provide maximum sound and heat insulation as well as abrasion resistance
• Rotatable threaded malleable iron ends make the connection convenient
• A strong, bias-ply construction, high-strength nylon fabric inside rubber 
 
 
| Connection | Thread BSPP,NPT | | Nominal diameter | 1/2"-3" | | Pressure rating | PN10 | | Vacuity | 400mmHg | | Temperature range | -20°C to +200°C(depending on rubber material) |
| No. | Part name | Material | | 1 | Rubber | EPDM, CR, NBR, FPM | | 2 | Fabric | Nylon | | 3 | Threaded end | Malleable iron |
| SIZE | L | Axial shift | Lateral shift | Angular shift | | DN | INCH | Stretch | Compression | | 15 | 1/2" | 200 | 5 | 22 | 22 | 45° | | 20 | 3/4" | 200 | 5 | 22 | 22 | 45° | | 25 | 1" | 200 | 6 | 22 | 22 | 45° | | 32 | 1 1/4" | 200 | 6 | 22 | 22 | 45° | | 40 | 1 1/2" | 200 | 6 | 22 | 22 | 45° | | 50 | 2" | 200 | 6 | 22 | 22 | 45° | | 65 | 2 1/2" | 220 | 6 | 22 | 22 | 45° | | 80 | 3" | 220 | 6 | 22 | 22 | 45° |
| Connection | Thread BSPP,NPT | | Nominal diameter | 1/2"-3" | | Pressure rating | PN10 | | Vacuity | 400mmHg | | Temperature range | -20°C to +200°C(depending on rubber material) |
Series J12 threaded double sphere rubber expansion joint is designed to compensate various movements in pipeline, such as the movements by heat-generated expansions, settlements of terrain or building structures, rolling movements and assembly errors, machinery vibrations, water hammers, etc. FEATURES • All rubber compounds for lining are specifically formulated to provide maximum sound and heat insulation as well as abrasion resistance
• Rotatable threaded malleable iron ends make the connection convenient
• A strong, bias-ply construction, high-strength nylon fabric inside rubber
| No. | Part name | Material | | 1 | Rubber | EPDM, CR, NBR, FPM | | 2 | Fabric | Nylon | | 3 | Threaded end | Malleable iron |
| SIZE | L | Axial shift | Lateral shift | Angular shift | | DN | INCH | Stretch | Compression | | 15 | 1/2" | 200 | 5 | 22 | 22 | 45° | | 20 | 3/4" | 200 | 5 | 22 | 22 | 45° | | 25 | 1" | 200 | 6 | 22 | 22 | 45° | | 32 | 1 1/4" | 200 | 6 | 22 | 22 | 45° | | 40 | 1 1/2" | 200 | 6 | 22 | 22 | 45° | | 50 | 2" | 200 | 6 | 22 | 22 | 45° | | 65 | 2 1/2" | 220 | 6 | 22 | 22 | 45° | | 80 | 3" | 220 | 6 | 22 | 22 | 45° |
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