Piston Accumulators Brochure - Page 1 / 10 DOUCE HYDRO SAS – 2 rue de l’industrie – BP 213 – 80303 Albert cedex – France – Fax: +33 / (0)3.22.74.78.43 DOUCE-HYDRO, inc. – 7225 Nineteen Mile Road, Sterling Heights, Michigan 48314 – USA – Fax: + 1 / 586.997.5030 Tel France: + 33 / (0)3.22.74.31.08 – Tel USA: + 1 / 586.997.5009 - www.doucehydro.com Douce-Hydro HYDRO PNEUMATIC PISTON ACCUMULATORS

Piston Accumulators Brochure - Page 2 / 10 DOUCE HYDRO SAS – 2 rue de l’industrie – BP 213 – 80303 Albert cedex – France – Fax: +33 / (0)3.22.74.78.43 DOUCE-HYDRO, inc. – 7225 Nineteen Mile Road, Sterling Heights, Michigan 48314 – USA – Fax: + 1 / 586.997.5030 Tel France: + 33 / (0)3.22.74.31.08 – Tel USA: + 1 / 586.997.5009 - www.doucehydro.com Douce-Hydro I – GENERAL NOTES: The hydro pneumatic piston accumulator, or piston accumulator, is a sort of tank in a hydraulic circuit, capable of storing a large quantity of energy with a low volume. A piston accumulator is divided in two chambers: one...

Piston Accumulators Brochure - Page 3 / 10 DOUCE HYDRO SAS – 2 rue de l’industrie – BP 213 – 80303 Albert cedex – France – Fax: +33 / (0)3.22.74.78.43 DOUCE-HYDRO, inc. – 7225 Nineteen Mile Road, Sterling Heights, Michigan 48314 – USA – Fax: + 1 / 586.997.5030 Tel France: + 33 / (0)3.22.74.31.08 – Tel USA: + 1 / 586.997.5009 - www.doucehydro.com Douce-Hydro APPLICATIONS: Whatever the application, a piston accumulator is mainly used as a security system in the hydraulic circuit in which it is installed. The different applications are: - Energy storage: allows the release of a high quantity of...

Piston Accumulators Brochure - Page 4 / 10 DOUCE HYDRO SAS – 2 rue de l’industrie – BP 213 – 80303 Albert cedex – France – Fax: +33 / (0)3.22.74.78.43 DOUCE-HYDRO, inc. – 7225 Nineteen Mile Road, Sterling Heights, Michigan 48314 – USA – Fax: + 1 / 586.997.5030 Tel France: + 33 / (0)3.22.74.31.08 – Tel USA: + 1 / 586.997.5009 - www.doucehydro.com Douce-Hydro ADVANTAGES OF PISTON ACCUMULATORS : - Instantaneous high flow rates - Adapted to high temperatures - High compression ratio - Piston position detection (option) - Can be adapted for transfer systems (with noncompatibles fluids) - Custom capacity...

Piston Accumulators Brochure - Page 5 / 10 DOUCE HYDRO SAS – 2 rue de l’industrie – BP 213 – 80303 Albert cedex – France – Fax: +33 / (0)3.22.74.78.43 DOUCE-HYDRO, inc. – 7225 Nineteen Mile Road, Sterling Heights, Michigan 48314 – USA – Fax: + 1 / 586.997.5030 Tel France: + 33 / (0)3.22.74.31.08 – Tel USA: + 1 / 586.997.5009 - www.doucehydro.com Douce-Hydro II - DOUCE HYDRO RANGE: Douce Hydro can answer to your specific needs for piston accumulators, whatever your requirements are. STANDARD RANGE: Fluid volume Bore diameter Maximal pressure Standard (*) certification Serie ACCU DH-1000 : 0 to...

Piston Accumulators Brochure - Page 6 / 10 DOUCE HYDRO SAS – 2 rue de l’industrie – BP 213 – 80303 Albert cedex – France – Fax: +33 / (0)3.22.74.78.43 DOUCE-HYDRO, inc. – 7225 Nineteen Mile Road, Sterling Heights, Michigan 48314 – USA – Fax: + 1 / 586.997.5030 Tel France: + 33 / (0)3.22.74.31.08 – Tel USA: + 1 / 586.997.5009 - www.doucehydro.com Douce-Hydro FLUIDS AND GAS: Fluids : Gas : - Mineral oil – according to ISO 4406 (standard) - anhydrous nitrogen - Water glycol - Ester phosphate - Chlorined hydrocarbons - Other gas are possible on request - Other fluids are possible on request For a...

Piston Accumulators Brochure - Page 7 / 10 DOUCE HYDRO SAS – 2 rue de l’industrie – BP 213 – 80303 Albert cedex – France – Fax: +33 / (0)3.22.74.78.43 DOUCE-HYDRO, inc. – 7225 Nineteen Mile Road, Sterling Heights, Michigan 48314 – USA – Fax: + 1 / 586.997.5030 Tel France: + 33 / (0)3.22.74.31.08 – Tel USA: + 1 / 586.997.5009 - www.doucehydro.com Douce-Hydro III – TO DETERMINE YOUR PISTON ACCUMULATOR You’ll find hereunder the different elements you will need to provide us, so that we can determine the sizing of your piston accumulator: - Fluid type - Gas type - Minimum and maximum working temperature...

Piston Accumulators Brochure - Page 8 / 10 DOUCE HYDRO SAS – 2 rue de l’industrie – BP 213 – 80303 Albert cedex – France – Fax: +33 / (0)3.22.74.78.43 DOUCE-HYDRO, inc. – 7225 Nineteen Mile Road, Sterling Heights, Michigan 48314 – USA – Fax: + 1 / 586.997.5030 Tel France: + 33 / (0)3.22.74.31.08 – Tel USA: + 1 / 586.997.5009 - www.doucehydro.com Douce-Hydro IV - SOME PAST REFERENCES: .. Charles De Gaulle Navy aircraft carrier: Size per unit: 4 020 x 1 560 x 1 560 mm / 13 feet x 5 feet x 5 feet Fluids: Compressed air / Hydraulic oil FYRQUEL 220 MLT Working pressure : P= 210 bars at 45°C / 3 045...

Piston Accumulators Brochure - Page 9 / 10 DOUCE HYDRO SAS – 2 rue de l’industrie – BP 213 – 80303 Albert cedex – France – Fax: +33 / (0)3.22.74.78.43 DOUCE-HYDRO, inc. – 7225 Nineteen Mile Road, Sterling Heights, Michigan 48314 – USA – Fax: + 1 / 586.997.5030 Tel France: + 33 / (0)3.22.74.31.08 – Tel USA: + 1 / 586.997.5009 - www.doucehydro.com Dou ce-Hydro .. Materiel for fighter aircraft pilotes training station: Piston accumulateur (Mineral oil / nitrogen) External diameter: 800 mm / 31 inches Stroke: 300 mm / 12 inches With piston position measuring system Working pressure: 350 bar / 5 075...

Piston Accumulators Brochure - Page 10 / 10 DOUCE HYDRO SAS – 2 rue de l’industrie – BP 213 – 80303 Albert cedex – France – Fax: +33 / (0)3.22.74.78.43 DOUCE-HYDRO, inc. – 7225 Nineteen Mile Road, Sterling Heights, Michigan 48314 – USA – Fax: + 1 / 586.997.5030 Tel France: + 33 / (0)3.22.74.31.08 – Tel USA: + 1 / 586.997.5009 - www.doucehydro.com Douce-Hydro .. Bumping table for seismic tests: Supplying high instantaneous flows (1 800 liters per minute / 476 gallons per minute) 8 piston accumulators with end stroke detector (proximity switches) Diameter: 420 mm / 16 inches Stroke: 1 870 mm /...