1.size:0.4L,0.6L,1L,1.6L,2.5L,....80L,100L 2.material:NBR,viton etc 3.long life 4.35 years history. the 16 LITER accumulator bladder functions as following in the accumulator usage: Storing of energy, stabilizing of pressure, compensation of leakage, absorbing of fluctuation of pressure and so on.the type of the bladder is comply with the HG2331-92 standard. this type of the bladder has the ...