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PED Bladder Accumulator

Siken PED Bladder accumulator

Siken Hydraulics has been prviding customers bladder accumulators for mang applications. A bladder accumulator consists of a pressure vessel or shell typically made of steel. Inside the accumulator, there are two main compartments separated by a flexible bladder. One compartment contains hydraulic fluid, while the other compartment contains compressed gas, usually nitrogen.

We are providing the bladder accumumulator from 0.1L to 54L and operating pressures up to 690Bar.

As for the rubber bladder materials, we could design and produce all products accumulator with diverse seals such as NBR, HNBR, EPDM(EPR), FPM(Viton), Butyl, Low-temperature NBR etc.

For non-PED baldder accumulator, more larger voume is availbale


·       Volumes:   0,1 liter ... 54 Liter

·       max. operating pressure: up to 690 bar(10000PSI)

·       Service temperature:  -40°C ... +200°C

·       Rubber materials:: NBR, HNBR, EPDM(EPR), FPM(Viton), Butyl, Low-temperature NBR etc.

·       Housing materials: Caron steel, Stainless Steel, plastic materials etc...

·       Coatings: Primer, offshore, plastic.



1: SB------Bladder accumulator

2: E--------CE/PED standard

3: Structure:

S----Standard bottom repairable(22mm gas port);
SB—Standard type B bottom repairable(50 mm gas port);

T----Top repairable

L----Large flow rate 

4: Maximum pressure (Bar)

330—330 Bar     500----500 Bar    690---690 Bar

5: Volume (L)

6: Shell materials:

C--- Carbon steel

S---Stainless Steel

7: Bladder materials:

N--- NBR



V----Viton (FPM)

HN--- Hydrogenated NBR

LN---Low temperature NBR

8:Fluid port



Bottom repairable

Top repairable

SAE split Flange

Large flow rate flange