www.stauff.com/6/en/#129 G 129 Pressure Equipment Directive CE-Marking of STAUFF Valves Information about essential contents and consequences of the Pressure Equipment Directive (PED 97/23 EC) and the CE-marking for STAUFF valves From 29th May 2002 the application of the Pressure Equipment Directive (PED 97/23 EC) is mandatory throughout in the European Community. Responsibility Manufacturers are obliged to ensure that products which are placed on the market in the European Community are designed and manufactured according to the regulations of the Pressure Equipment Directive. The company is only allowed to purchase and use pressure equipment which corresponds to the regulations of the Pressure Equipment Directive. Procedure Valves have to be classified in categories (category I to III ). Category I relates to the lowest, category III to the highest, hazard category. The classification is carried out under consideration of diameter pressure medium-hazardous or harmless gases or liquids Group 1 comprises hazardous mediums explosive extremely flammable highly flammable flammable (where the maximum allowable temperature is above flashpoint) very toxic toxic oxidising Group 2 comprises all harmless mediums which are not listed in Group 1 such as hydraulic oil, water, air and oxygen. Consequences No CE-markingfor: All valves < DN200 for harmless liquids of Group 2, such as hydraulic oil, water All valves up to and including DN 25 for all mediums in Group 1 and 2 (gaseous and liquid) CE-markingfor valves ≥ DN 32: With regards to valves of category I and II, STAUFF prepares a declaration of conformity. With regards to valves of category III an external conformity examination is necessary. The resulting costs will be included in our quotation. Concerning valves of the categories I to III, it has to be observed that: a certification of conformity has to be enclosed with each delivery. operating instructions have to be enclosed with each packing unity. • the traceability of products must be guaranteed. Storing and Assembling Instructions Fixing Screw Flow Indicator Stem Snap Ring Stop Disc Stop Pin Ball Seat Ball Body O-Ring Adaptor Washer O-Ring Back-up Ring Lever The assembly of the lever and the flow indicator has to be carried out the way that the groove of the stem and the groove of the indicator are identical in direction. STAUFF delivers ball valves of first-class quality. This is guaranteed by the utmost care as far as construction and production of our products are concerned. All STAUFF products must pass our rigid quality assurance system ensuring the high standard of quality. As a matter of course, quality approvals can be supplied on request. In order to guarantee the proper function of our products, the following criteria must be adhered to (non-observance can lead to expiration of this guarantee): 1. After receipt of order, the goods must be kept from moisture, erosion and thermal shock. 2. Ball valves are being delivered in open position. Store in a dry and clean place. Do not remove protective dust caps until final installation. 3. Pipe systems must be flushed before installing ball valves (dirt and other residues can damage seals). 4. It is possible to change the switching direction from our standard „clockwise“ to „counter clockwise“ by reversing the stop disc (see illustration). 5. When mounting pipes or fittings to the ball valve, the valve connectors must be held in place at the hexagon with a suitable tool (open end wrench) to prevent expanding the end connectors. 6. Pressure test max. with 1,1 x PN with closed ball valve; 1,5 x PN in half opened position. Flanged ball valves and ball valves in larger nominal diameters must be carefully aligned with pipe to prevent line stress. When welding ball valves into the pipe system, the temperature at the body must not exceed +200°C / +392°C. When bleeding a pipe system, the ball valve must be opened 45° to assure complete drainage. In case of a defect please contact the factory prior to disassembly of our ball valves. Catalogue 6 § Edition 06/2024 Technical Appendix
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