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Check Valve Type 561/ 562

Check Valve Type 561/  562

Check Valve Type 561/ 562

Product catalog summary
Introduction
This document serves as an instruction manual for the installation and use of Georg Fischer Check Valves, focusing on safety and proper handling to prevent injury and damage.
Proper Use
Georg Fischer Check Valves are designed for controlling fluid flow within specified pressure, temperature, and chemical resistance limits. They are unsuitable for fluids containing solids. Ensure even fluid flow and turbulence-free sections before and after the valve.
Applicable Documents
Refer to the “Georg Fischer Planning Fundamentals” for additional valve usage information, available from representatives or online.
Security and Responsibility
Follow general safety instructions for the piping system. Only trained personnel should handle installation, operation, and maintenance. The instruction manual is a critical safety component and must be accessible at all times.
Transport and Storage
Handle, transport, and store the check valve carefully in its original packaging, protecting it from dust, dirt, moisture, heat, and UV radiation.
Design and Function
Type 561 is for vertical installation without a spring, and Type 562 includes a spring for both vertical and horizontal installations. Proper installation is crucial for valve tightness. A list of spare parts is provided for replacements.
Installation into a Pipe
Follow standard procedures for connecting pipes and fittings. Ensure the valve is undamaged and meets usage requirements. Perform functional tests before installation. Avoid material damage by using appropriate tools and following installation guidelines. Ensure correct flow direction as indicated by the arrow on the valve.
Commissioning
Pressure testing instructions are similar to those for pipes, ensuring the test pressure does not exceed the valve's PN rating. Verify all valves and connections for leaks during testing.
Maintenance
Under normal conditions, check valves require no maintenance. Periodically check for leaks and ensure functionality, especially under varying conditions.
Problem Fixing
Common issues include leaks due to damaged seals or contamination. Solutions involve replacing seals or cleaning the valve. Ensure correct installation to prevent issues.
Specifications and Compliance
The valves comply with the harmonized construction standard EN ISO 16137 and the EU Pressure Equipment Directive 2014/68/EU. The CE marking is applicable for valves with a nominal diameter greater than 25.
Commissioning Procedure
Before commissioning, ensure all valves are in the correct position (open or closed). Fill and purge the piping system completely. The maximum test pressure is determined by the component with the lowest nominal pressure. During testing, check the tightness of valves and connections.
Maintenance Plan
Under normal conditions, check valves require no maintenance. However, periodic checks for valve tightness and functionality are recommended, especially under varying conditions such as high temperatures or abrasive fluids.
Troubleshooting
Common issues include leakage due to damaged seals or improper assembly. Solutions involve replacing seals, cleaning valves, and ensuring correct assembly. For external leaks, tighten the relevant components. If the valve is noisy or the spring malfunctions, check for correct sizing and chemical resistance.
Installation Warnings
Use appropriate tools to avoid damage during installation. Ensure the flow direction is correct, especially in vertical installations. Only connect identical materials for welded or glued connections.
Accessories
Accessories include complete strainers for dirt protection, standard levers for disassembly, and PP-H cones for lighter closure bodies.
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Catalog excerpts

Check Valve Type 561/  562-1

Our General Terms of Sale apply. Observe instruction manual The instruction manual is part of the product and an important component of the safety concept. • Read and observe the instruction manual. • Always keep the instruction manual with the product. • Pass the instruction manual to subsequent users of the product. The manufacturer, Georg Fischer Piping Systems Ltd, CH-8201 Schaf-fhausen (Switzerland) declares, in accordance with the harmonized EN ISO 16137 that the check valve types 561 and 562 are pressure-bearing components in the sense of the EC Directive 2014/68/EU concerning pressure equipment and that they meet the requirements pertaining to valves as states in this directive. The CE-emblem on the valve refers to this accordance (as per the directive on pressure equipment, only valves larger than DN25 can be labeled with CE). Operation of these check valves is prohibited until conformity of the entire system into which the check valves have been installed is established according to one of the above mentioned EC-Directives. Modifications to the check valve which have an impact on the technical specifications provided and the proper use of the device shall invalidate this declaration of conformity. Additional information can be found in the “Georg Fischer Planning Fundamentals”. Es gelten unsere Allgemeinen Verkaufsbedingungen. Betriebsanleitung beachten Die Betriebsanleitung ist Teil des Produkts und ein wichtiger Baustein im Sicherheitskonzept. • Betriebsanleitung lesen und befolgen. • Betriebsanleitung stets fur Produkt verfugbar halten. • Betriebsanleitung an alle nachfolgenden Verwender des Produkts weitergeben. Der Hersteller Georg Fischer Rohrleitungssysteme AG, 8201 Schaffhausen (Schweiz) erklart, dass dass Ruckschlagventile Typ 561, 562 gemass der harmonisierten Bauart-Norm EN ISO 16137 druckhaltende Ausrus-tungsteile im Sinne der EG-Druckgeratericht-linie 2014/68/EU sind und solchen Anforderungen dieser Richtlinie entsprechen, die fur Armaturen zutreffen. Das CE-Zeichen an der Armatur zeigt diese Ubereinstimmung an (nach Druckgeraterichtlinie durfen nur Armaturen grosser DN25 mit CE gekennzeichnet werden). Die Inbetriebnahme dieser Ruckschlagventile ist so lange untersagt, bis die Konformitat der Gesamtanlage, in die die Ruckschlagventile eingebaut sind, mit einer der genannten EG-Richtlinien erklart ist. Anderungen am Ruckschlagventil, die Auswirkungen auf die angegebenen technischen Daten und den bestimmungsgemassen Gebrauch haben, ma-chen diese EG-Konformitatserkarung ungultig. Zusatzliche Informationen konnen den «Georg Fischer Planungsgrundlagen» entnommen werden. Bastian Lubke

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Check Valve Type 561/  562-2

Soupape de retenue Type 561/ 562 Mode d‘emploi Nos Conditions generates de vente sont d'application. Respecter le mode d’emploi Le mode d'emploi fait partie integrante du produit et est un element important du concept de securite. • Lire et respecter le mode d’emploi. • Toujours conserver le mode d'emploi avec le produit. Transmettre de mode d'emploi a tous les utilisateurs ulterieurs du produit. La mise en service de ces soupapes de retenue est interdite tant que l'installation (dans sa globalite) sur laquelle les soupapes de retenue sont montees n'est pas en conformite avec les directives CE...

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