DOUBLE WAVE RUBBER COMPENSATOR
  
 
They are made of rubber, flanged, made up of an elastic BI-ONDA rubber body, reinforced with a braid of nylon threads which make them resistant to stresses due to pressure during use and to the movements they must absorb. The sealing step between the joint flange and the counterflange is in turn reinforced with a steel ring, which avoids (within the limits of use permitted by the joint) the removal of the rubber body from the flange seat, as well as give greater guarantees of non-deformability during use, a situation that could lead to leaks in the joint itself. 
STRUCTURE :
 Swivel flanges: galvanized carbon steel
 Reinforcement step: galvanized carbon steel
 Elastomer: special synthetic rubber
 Reinforcement: Nylon synthetic fibre
 Available rubber compounds: EPDM, NITRILE, NEOPRENE, HYPALON, VITON
 Maximum operating pressure: from DN25 to DN300 16 bar - from DN350 to DN700 8 bar
 Burst pressure: from DN25 to DN300 60 bar - from DN350 to DN700 24 bar
 Depression: 650mm/Hg
 Operating temperature: -20 ÷ 100°C
 
| Diameter nominal
 | Length | OR Hole
 | OR lip
 | Eligible movements | 
| Axial | Lateral | Angular | 
| inch. | mm | mm | mm | mm | compression | elongation | +/- | +/- | 
| 1"1/2 | 40 | 175 | 40 | 68 | 50 | 30 | 45 | 35° | 
| 2" | 50 | 175 | 52 | 86 | 50 | 30 | 45 | 35° | 
| 2"1/2 | 65 | 175 | 68 | 105 | 50 | 30 | 45 | 35° | 
| 3" | 80 | 175 | 76 | 115 | 50 | 30 | 45 | 35° | 
| 4" | 100 | 225 | 103 | 150 | 50 | 35 | 40 | 35° | 
| 5" | 125 | 225 | 128 | 179 | 50 | 35 | 40 | 35° | 
| 6" | 150 | 225 | 152 | 210 | 50 | 35 | 40 | 35° | 
| 8" | 200 | 325 | 194 | 260 | 60 | 35 | 35 | 30° | 
| 10" | 250 | 325 | 250 | 320 | 60 | 35 | 35 | 30° | 
| 12" | 300 | 325 | 300 | 367 | 60 | 35 | 35 | 30° | 
| 14" | 350 | 350 | 320 | 408 | 40 | 30 | 30 | 20th | 
| 16" | 400 | 350 | 372 | 472 | 40 | 30 | 30 | 20th | 
| 18" | 450 | 350 | 415 | 522 | 40 | 30 | 30 | 20th | 
| 20" | 500 | 350 | 454 | 570 | 40 | 30 | 30 | 20th | 
| 24" | 600 | 350 | 580 | 689 | 40 | 30 | 30 | 20th |