Rolling Diaphragms INDUSTRIAL APPLICATIONS

INTRODUCTION4 1 – HUTCHINSON GROUP 2 – HUTCHINSON PRECISION SEALING SYSTEMS ROLLING DIAPHRAGMS6 1 – DESCRIPTION 2 – OPERATING PRINCIPLE 3 – APP

INTRODUCTION 1 – HUTCHINSON GROUP Hutchinson has been designing, developing and manufacturing high-performance solutions for 170 years to meet the needs of its customers around the world, on land, in the air and at sea. Our innovations cover a wide variety of particularly demanding markets: automotive, aerospace, defence, energy, rail and general industry. A world leader in anti-vibration systems, fluid management and sealing solutions, our group stands out for its multi-market, multi-expertise approach, a source of synergies and added value. Our Corporate Research & Innovation Centre employs...

2 – HUTCHINSON PRECISION SEALING SYSTEMS As an expert manufacturer of sealing solutions, Hutchinson - Precision Sealing Systems designs and manufactures static and dynamic sealing solutions for its international customers in a wide range of industrial sectors. Complete control of the entire process, from development to production, enables us to offer our customers a wide variety of approved materials, tailor-made solutions and a certified guarantee of origin. Our project team relies on constant experimentation and innovation to develop solutions that are perfectly tailored to our customers' needs....

ROLLING DIAPHRAGMS 1- DESCRIPTION Rolling diaphragms are flexible devices used to regulate fluids. They provide a seal in systems involving a piston and a cylinder. These diaphragms are made from a fabric with very high mechanical characteristics covered by a thin layer of elastomer, which allows them to take on any shape or size. The materials used as standard provide: • • • Pressure resistance: up to 50 bars Temperature resistance: -60°C and +250°C Resistance to various fluids: water or water emulsion, mineral oil, etc. We offer 3 classes of membrane, differentiated by their fastening system....

2- OPERATING PRINCIPLE The diaphragm is attached to the piston head. It unwinds and retracts in synchronisation with the piston movements, moving from from high to low position. It rests alternately against the cylinder wall and the piston skirt. 3- APPLICATIONS Rolling diaphragms offer many advantages in control and regulation equipment, as well as in hydraulics and pneumatics. They are used in devices such as flow regulators, control cylinders and geothermal pumps. As well as providing a perfect seal, these membranes operate without friction or lubrication. They are ideally suited to systems...

MATERIALS 1 – ELASTOMERS Four materials are available as standard. They cover the requirements of most applications. Rubber Family Ethylene Propylene (EPDM) * Formulated with raw materials that comply with the FDA positive list - 21 CFR § 177-2600. In addition, Hutchinson offers a wide range of rubber materials to meet any specific requirements. 2 – POLYESTER FABRICS The fabric is determined by the pressure of use. These fabrics are carefully dimensionally stabilised using a hot preforming process. Breaking strength, mini (daN) chain Tensile strength, mini (%) chain Number of wires/cm chain Our...

PARTS LIST Design: class A - Material: BF7 - Fabric501 The membranes are made to the standard dimensions specified in the table below. They are manufactured to class A design, in BF7 material, reinforced with type 501 fabric. Hutchinson part number

Hutchinson part number

Hutchinson part number Please contact us to check availability of references with* Specific Requirements Please contact us for any other request: • Dimensions • Class B,C • Material: EPDM, FKM, MVQ... • Fabr

This catalogue contains recommendations which should be checked with our teams and which may change depending on the membrane environment. These recommendations do not constitute a commitment on our part and any claim is excluded. It is essential to carry out tests for final validation, which remains the responsibility of the customer. The information contained in this catalogue is valid at the date of printing. As part of our optimisation policy, we reserve the right to modify the product range, production sites, products, manufacturing methods and information in this catalogue without prior...

02/2024- Ph. : HUTCHINSON, Adobe Stock, Flaticon Hutchinson - Le Joint Français SNC 5 rue Ampère 22000 Saint-Brieuc - France www.precisionsealingsystems.hutchinson.com +33 2 96 62 49 49