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Bellows valve – Item 53

Bellows valve – Item 53
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Bellows valve – Item 53

Product catalog summary
Components and Materials:
  • Body and Bonnet: Made of EN-GJS-400-18-LT.
  • Seat, Disc, Stem, Antifriction Disk: Made of Stainless Steel 1.4021.
  • Bellows: Made of Stainless Steel 1.4541.
  • Gaskets: Composed of Graphite and Stainless Steel.
  • Packing: Made of Graphite.
  • Handwheel: Made of Pressed Steel.
  • Screws: Made of Carbon Steel.
Design Features:
  • Non-rotating disc and rotating stem.
  • Pressed-in seat.
  • TA-Luft approved.
Dimensions and Performance:
DN (mm)D (mm)L (mm)H (mm)H' (mm)V (mm)Weight (Kg)Kv (m3/h)
159513016517510034.6
201051501651751004.17.3
251151601851951004.411.7
321401801851951256.516.8
401502002152301509.326.7
5016523021523015011.542.6
651852902953152001977.9
8020031029531520022111
10023535032035522529.5177
12527040034538525044262
15030048040044535064368
200360600455520400107664
Flow Coefficients (Kv) at Different Openings:
  • 20% opening: Ranges from 0.33 m3/h (DN 15) to 72 m3/h (DN 200).
  • 40% opening: Ranges from 0.99 m3/h (DN 15) to 143 m3/h (DN 200).
  • 60% opening: Ranges from 2.17 m3/h (DN 15) to 258 m3/h (DN 200).
  • 80% opening: Ranges from 3.27 m3/h (DN 15) to 377 m3/h (DN 200).
  • 100% opening: Ranges from 4.19 m3/h (DN 15) to 446 m3/h (DN 200).
Temperature and Pressure Ratings:
  • Temperature range: -10°C to 350°C.
  • Pressure ratings: 25 bar at -10/120°C, decreasing to 17.5 bar at 350°C.
See more

Catalog excerpts

Bellows valve – Item 53-1

Rising handwheel I Stelo rotante Rotating stem I Otturatore non rotante Not rotating disc I Sede mandrinata Pressed-in seat Impianti di trasmissione calore, centrali termiche, caldaie e serbatoi, impianti di teleriscaldamento, applicazioni con olio diatermico, ecc. Heat transfer systems, thermal power stations, industrial boilers and tanks, district heating plants, diathermic oil installations, etc. Acqua calda e/o surriscaldata, vapore, aria, fluidi diatermici, ecc. Hot water and/or overheated water, steam, air, diathermic fluids, etc. Materiali Materials Disco antifrizione Antifriction disk Componente Corpo Cappello Sede Otturatore Stelo Soffietto Guarnizioni Baderna Volantino Viti Components Body Bonnet Seat Disc Stem Bellows Gaskets Packing Handwheel Screws Material EN-GJS-400-18-LT EN-GJS-400-18-LT St. Steel 1.4021 St. Steel 1.4021 St. Steel 1.4021 St. Steel 1.4541 St. Steel 1.4021 Graphite + St. Steel Graphite Pressed steel Carbon steel

 Open the catalog to page 1
Bellows valve – Item 53-2

Dimensioni Sizes KV alia percentuale di alzata figura 53/R Condizioni di esercizio/Working conditions Temperatura - Temperature [°C] Pressione - Pressure [bar] interchangeable PTFE disc

 Open the catalog to page 2

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