Diaphragm Тип accumulators HAD

Description Component series 1X and 2X Nominal capacity 0.075 … 3.5 l Maximum operating pressure 250 bar Features Hydro-pneumatic accumulator for use in mobile machines and stationary machinery and systems Use: – Energy storage in intermittent operation systems – Energy reserve for emergencies – Impact and vibration absorption – Volume compensation in case of pressure and temperature change Approval: – according to PED 2014/68/EU – according to TR CU 032/2013 Product description Function, section, symbol General information One of the main tasks of hydro-pneumatic accumulators is e.g. to accept certain volumes of pressurized liquids of hydro-pneumatic installations and to return them to the system if required. As the liquid is pressurized, the hydro-pneumatic accumulators are treated like pressure vessel and must be designed for the max. operating over pressure considering the acceptance standards of the country of installation. In most hydro-pneumatic systems, hydro-pneumatic accumulators with separator element are used. The difference between bladder-type, piston and diaphragm-type accumulators lies in the type of separator element. Hydro-pneumatic accumulators essentially consist of a fluid section and a gas section with a gas-tight separator element. The fluid section has a connection to the hydraulic circuit. During the pressure increase, the gas is compressed and liquid accepted in the hydro-pneumatic accumulator. When the pressure decreases, the compressed gas expands and displaces the accumulated fluid into the circuit. Diaphragm type accumulator Diaphragm-type accumulators consist of a pressureresistant steel vessel (1) which most commonly has a spherical to cylindrical form. Inside the accumulator, there is the separator element, namely a diaphragm (2) made of an elastic, flexible material (elastomer) with the closing button (3) and the plug screw (4). They correspond to Pressure Equipment Directive 2014/68/EU. 1 Containers 2 Diaphragm 3 Closing button 4 Plug screw (gas filling screw) 5 Fluid connection Symbol Type code Ordering code 01 02 03 04 05 06 07 08 09 10 11 12 13 14 HAD - - / - 1 1 1 - - Device designation 01 Diaphragm type accumulators HAD Nominal capacity 02 0,075 0,16 0,35 0,5 0,6 0,7 1,0 1,4 2,0 2,8 3,5 Maximum operating pressure 03 70 bar ○ 70 100 bar ○ ○ 100 140 bar ○ 140 160 bar ○ ○ 160 180 bar ○ 180 200 bar ○ 200 210 bar ○ ○ 210 250 bar ● ● ● ● ● ● ● ● ● ● 250 330 bar ● 330 350 bar ○ ○ ○ ○ ○ 350 Component series 04 Component series 10 … 19 (only with these nominal volume/pressure combinations) 250 250 160 210 250 160 330 100 180 210 250 200 250 140 250 100 250 70 350 350 1X Component series 20 … 29 (only with these nominal volume/pressure combinations) 250 350 350 350 250 250 2X Preload pressure 05 0 bar ● ● ● ● ● ● ● ● ● ● ● 0 1 ... 250 bar ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ 1 ... 250 Port size for hydraulic fluid 1) 06 M14x1.5 ○ Z04 M18x1.5 ○ ○ ○ ○ ○ Z06 M22x1.5 ○ ○ ○ ○ Z08 G1/2 ● ● ● ● ● ● ● ● ○ ○ G04 G3/4 ● ● ● G05 Type of mount