EPE Diaphragm Standard Accumulator (AMW-3.5-P-250-C-C2-0-M)
Accumulator is a device used specifically for storage of liquid under pressure. As liquids, for all practical purposes, are incompressible, this objective is achieved by utilizing the compressibility of gases. A flexible rubber separator i.e., diaphragm is fitted into the accumulator shell. An inert gas – nitrogen – is filled into the diaphragm through a pressure valve to a pressure P . The diaphragm expands, filling the entire volume V of the accumulator shell. When the system (circuit) pressure P is higher than the gas 1 precharge pressure P , the liquid enters the shell and the diaphragm is compressed reducing the gas volume to V .1 Should the liquid pressure rise to P , the volume of gas 2 reduces to V with an attendant rise in pressure, thus 2 balancing the Liquid pressure. A potential energy is now stored in the accumulator to be utilized whenever needed.
Material of Construction
Body : Carbon Steel-Painted or Low Temp Carbon Steel or Stainless Steel.
Diaphragm : Nitrile(NBR) or Epichlorohydrin(ECO) orViton (FKM). Others on request.
Diaphragm Plug : Plastic (Standard) or CS or SS. Connections
Gas Side : M28x1.5(M) or Dia 8 or 5/16” UNEF/Vg8. Others on request.
Fluid Side : Female Threaded or Combination Thread (M+F) or SAE Ports. Others on request.
Design : Welded shell, non-repairable
Max. Pressure (PS) : 250 Bar.
Test Pressure (PT) : 1.43 x PS
Temperature range : -20°C to +80°C (Standard)
Max. permissible pre-charge pressure P : 130 bar. However limitations 0-max due to transport regulations.
Nominal capacity : 3.5 Ltrs.
Fluid Viscosity range : 10 to 400 cSt
Recommended viscosity : 32 cSt
Fluid contamination degree: Class 21/17/14 according to ISO 4406 or better on request.