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BALL VALVES
KUGELHÄHNE
INSTALLATION, MAINTENANCE AND
OPERATING MANUAL INSTRUCTION
EINBAU-, WARTUNGS- UND
BETRIEBSANLEITUNG
ADLER S.p.A. VALVOLE A SFERA, V.le Borletti 14, 20010 S.Stefano Ticino (MI) ITALY
Tel. +39 02974842.11 Fax. +39 0297271698 E-mail
adler@adlerspa.com
http://
www.adlerspa.com
Pag. 1 of 14
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Summarization of Contents
Introduction and Product Scope
Product Limitations and Safety Considerations
Details specific risk factors not covered in standard ball valve design for safe operation.
Valve Marking and Identification
Understanding Valve Markings
Explains the data marked on each ball valve for identification and compliance.
Ball Valve Startup Procedures
Pre-Installation Verification and Usage
Mandates user verification of compatibility and specifies intended ON/OFF service.
Ball Valve Installation Guidelines
Pre-Installation Checks
Ensures valve rating exceeds working pressure and pipe-line is clean before installation.
Assembly Torque Specifications
Provides torque values for tightening assembly screws and stem nuts.
Disassembly and Assembly of Components
Component Disassembly Steps
Step-by-step instructions for safely taking apart the ball valve components.
Component Reassembly Procedures
Guidance on correctly reassembling ball valve components after service.
Special Component Executions
Fire Safe Valve Modifications (API 6FA)
Details modifications for Fire Safe valves, replacing standard chevron rings with specific seals.
O-Ring Stem Assembly
Describes installing an O-ring on the stem, replacing the pressing bush with a lantern and O-rings.
Cryogenic Extension/Extended Bonnet
Instructions for installing cryogenic extensions or extended bonnets with specific components.
Valve Disposal Procedure
Safe Removal and Cleaning for Disposal
Procedures for safely removing, cleaning, and separating valve components for disposal.
Troubleshooting Valve Issues
Internal Medium Leakage Causes
Identifies reasons for internal leakage, including operating conditions and material incompatibility.
External Medium Leakage Causes
Explains causes of external leakage, such as worn seals or loose body screws.
Ball Valve Torque or Locked Ball Issues
Addresses problems with excessive torque or a locked ball, linking them to operating conditions or media.
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