Serie BOA-H

Bellows-type Globe Valve
 

Nominal diameter: DN15 – DN350
Nominal pressure: PN16 or PN25
 

Main applications:
▪ Hot-water heating systems
▪ Air-conditioning systems
▪ Boiler feed applications
▪ Boiler recirculation
▪ Chemical industry
▪ Process engineering
▪ Heat recovery systems
▪ Sugar industry

Features:
▪ Straight-way or angle pattern with horizontal seat
▪ Throttling plug up to DN 100
▪ On/off disc for DN 125 and above
▪ All nominal sizes with position indicator, locking device and travel stop
▪ Compact bonnet
▪ Maintenance-free bellows-type stem seal with back-up gland packing
▪ Non-rising handwheel
▪ Flanges to DIN EN 1092-2 Type 21
▪ Exterior coating: blue RAL 5002
▪ The valves satisfy the safety requirements of Annex I of the European Pressure Equipment Directive 97/23/EC (PED) for fluids in Groups 1 and 2.
▪ The valves do not have a potential internal source of ignition and can be used in potentially explosive atmospheres, Group II, category 2 (zones 1+21) and category 3 (zones 2+22) to ATEX 94/9/EC.
▪ Type-tested to the specifications of Germanischer Lloyd

Materials    
• Casing: EN-GJL-250 or EN-GJS-400-18-LT  
• Valve disc: 1.4021 + QT  
• Bellows: 1.4541  
     
Variants    
▪ V-port plug (seat-guided throttling plug for maximum requirements) for DN 15-300
▪ Valve disc with PTFE ring (max. 200 °C, throttling plug for DN 15-100, on/off disc for DN 125-200)
▪ Lead-sealable cap (prevents unauthorised actuation) as assembly set
▪ Balanced plug design from DN 200
▪ High-temperature resistant paint (grey aluminium)
▪ Either one or two limit switch(es) as assembly kit for globe valves of DN 15-150 made of JS1025
▪ Oil and grease-free: lubricated exclusively by mineral oil free lubricants approved by the German Federal Office for Materials Testing (Bundesanstalt für Materialforschung und -prüfung, BAM)
▪ Other flange designs
▪ Low-temperature steel bolts for temperatures down to -30 °C (JS 1025 only) up to 0.75 x PN (max.)
▪ Certification to customer specification
   
 

serie boa-h, Faltenbalgventil

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Technical Data Sheet:

Serie BOA-H

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