► Technical description LEDUC spherical accumulators consist of two hemispherical shells which are screwed together and which hold a diaphragm. This diaphragm has a metal stud which closes off the operation hole when the fluid is completely discharged. There is therefore no danger of damage to the diaphragm. The gas side port is fitted with a charging valve allowing the pressure in the accumulator to be checked or changed. Separator: Standard, Nitrile: from -20°C to +100°C Other diaphragms are available on request. AS 400 bar Maximum pressure : 400 bar (except for AS 0.7 L) Extreme operating temperatures : – 20°C to + 120°C ► Deformation of the diaphragm ► Advantages The diaphragm only changes position, the elastomer in fact works little. The LEDUC spherical accumulator owes most of its qualities to its diaphragm and metal stud : excellent gas/fluid tightness possibility of total and rapid discharge can be adapted to suit a wide range of fluids. ► Operating fluids Mineral-based hydraulic fluids: standard diaphragm Corrosive or non-standard fluids: please consult our Customer Service Department. ► Filling gas Nitrogen only. ► Volumetric ratio(V0–V2)/V0 The volumetric ratio of this type of accumulator is 0.75. For example: an AS 1 accumulator can take in a maximum volume of 0.75 V0: 0.75 V0 = 0.75 x 1.1 = 0.82 litres. ► Protection On request, ARCOR® anti-corrosion treatment or paint. ► Tests and certificates Designed and certified according to the European Directive 2014/68/UE. Other certificates on request. ► After-sales service HYDRO LEDUC provides after sales service, supplies spare parts and can requalify your accumulators (retesting), only for the accumulators

Charging valve Nitrogen capacity Vo (litres) Nitrogen capacity Vo (litres)

To obtain the code of your AS or AC accumulator, complete the different parameters from 01 to 06 in the table on the left according to the options you require (see table below). Spherical accumulator Compact accumulator Without protection ARCOR® treatment NBR with stainless steel stud Diaphragm material NBR NBR with adherized metal stud Charging valve P1620 valve (M16x200) P1620 stainless steel valve (M16x200)

Stainless steel Zinc-plated steel quick tightening Code LEDUC Zinc-plated steel Code LEDUC