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Bellows valve – Item 63

Bellows valve – Item 63
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Bellows valve – Item 63

Product catalog summary
Component Specifications:
  • Body and Yoke: Made from EN-GJS-400-18-LT material.
  • Seat, Disc, Stem, Antifriction Disk: Constructed from Stainless Steel 1.4021.
  • Bellows: Made from Stainless Steel 1.4541.
  • Gaskets: Composed of Graphite and Stainless Steel.
  • Packing: Made from Graphite.
  • Handwheel: Made from Pressed Steel.
  • Screws: Made from Carbon Steel.
Design Features:
  • Includes a lubricator and a backseat for safety.
  • Features double anti-friction bearings and a rotating disc.
  • Equipped with an opening index with anti-rotation function and a pressed-in seat.
Dimensional Data:
DN (mm)D (mm)L (mm)H (mm)V (mm)Weight (Kg)Kv (m3/h)
15951302351253.84.6
201051502351254.87.3
251151602451255.311.7
321401802451256.916.8
401502002751501026.7
501652302751501242.6
6518529037520020.577.9
8020031037520023111
10023535040025033177
12527040044530048262
15030048049535067368
200360600620400117664
Operational Parameters:
  • Temperature Range: -10°C to 350°C.
  • Pressure Ratings: Varying from 25 bar at -10°C to 17.5 bar at 350°C.
Flow Coefficients (Kv) at Different Openings:
Opening (%)DN 15DN 20DN 25DN 32DN 40DN 50DN 65DN 80DN 100DN 125DN 150DN 200
20%0.330.841.32.23.728.268.9116.121.135.951.172
40%0.991.772.814.537.2414.21830.940.460.9109143
60%2.173.524.918.313.522.234.255.274.6103190258
80%3.275.477.6412.519.830.853.880.4117154252377
100%4.196.779.2215.424.536.564.191.7138182286446
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Catalog excerpts

Bellows valve – Item 63-1

Stop screw Ingrassatore Lubricator Doppia ralla antifrizione Double anti-friction bearings Indicatore di apertura con funzione antirotazione Opening index with anti-rotatinon function I Controtenuta di sicurezza ricavata sullo stelo Backseat I Otturatore rotante 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, distn'ct 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 Components Body Yoke Seat Disc Stem Bellows Antifriction disk 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 63-2

Dimensioni Sizes KV alia percentuale di alzata figura 63/R Condizioni di esercizio/ Working conditions E’ necessario I’uso dell’otturatore equilibrato quando la pressione di esercizio supera i seguenti valori It is necessary to use the balanced disc when the working pressure is over the following values N0TA: Utilizzando una valvola con otturatore equilibrato e indispensabile installaria al contrario, cioe con la pressione sopra I'othiretore NOTE: Using a valve with balanced disc is it essential to install it in reverse my, that is with the pressure on the disc Varianti costruttive Manufacturing...

 Open the catalog to page 2

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