Catalogue 5 - STAUFF Quick Release Couplings

226 www.stauff.com/5/en/#226 Catalogue 5 § Edition 03/2024 Technical Appendix Important ! Incorrect selection or incorrect and inexpert handling of couplings and accessories may result in property damage or personal injury. § High velocity fluid discharge § Explosion or combustion of the conveyed fluid § Collision with moving or dropping components, caused by failure of a hydraulic circuit § Dangerous whipping of hydraulic hoses § Risk of injury through contacting hot, cold or otherwise dangerous fluids Read and observe the following instructions prior to selecting and using a snap-in coupling or associated accessories. 1 General Notes 1.1General This section contains instructions on selection and handling (installation, coupling and uncoupling and maintenance). This is to be Understood as additional safety notes and must be taken into consideration in the use and application of the products. 1.2 Safety Measures Couplings may possibly fail without prior warning. Take this into consideration when planning the safety devices of your system or plant. 1.3 Information for the User Forward these safety notes to the persons responsible for the selection and handling of couplings. Use only couplings for which you have received and Understood product-specific information. 1.4 Responsibility of the User Due to the versatile range of applications of couplings, not every application case and every technical detail can be dealt with in this document. The user is responsible for: § final selection of the product § fulfilment or requirements by the operator § safety of operating personnel and plant § safety measures necessary in the use of couplings Should you have any further questions, please contact our sales department. 2 Correct Selection of Couplings 2.1 Pressure Range The coupling to be used must be selected so that the maxi- mum permissible operating pressure is equal to or higher than the system pressure. Pressure peaks in the system in excess of the operating pressure reduce the service life of the couplings and therefore should be taken into considera- tion when making the selection. 2.2 Resistance to Media The Sealing Materials in the couplings are suitable for a large variety of pressure media. Information on the compatibility of a particular type of fluid are available upon request from product manager. 2.3 Operating Temperature The indication of operating temperatures in the technical specifications represents maximum values. These values may not be exceeded in standing or flowing circuits. For actuation the natural warming of the coupling must also be taken into consideration. 2.4 Size The selection of the size and type of connection depends on the required transmission of forces. For this purpose, refer to the corresponding diagrams. Flow volume, pressure loss and flow speed should be taken into consideration when select- ing the correct size of a coupling. Should these values be exceeded, malfunctions within the coupling may occur. 2.5 Mechanical Connection The connection of the two halves of a coupling is achieved depending on the type. It is important to observe the positive engagement of plug-type couplings and the secure tighten- ing of screw-type couplings to the limit stop of the thread. Forced or improper separation will result in malfunction of the coupling. 2.6 Thermal Stress Excessive warming of the coupling above the recommended operating temperature, for instance due to welding or soldering, can cause the formation of dangerous gases. In addition, the protective surface finish (galvanization) will be damaged and the function of the coupling may be impaired. 2.7 Guidelines Applicable specifications, standards and regulations as well as technical rules must be taken into consideration in the selection of couplings. Safety Regulations for Handling of Quick Release Couplings and Accessories