Cast steel bellow sealed globe valves flanged PN 25

Valvotubi ind bellow sealed globe valve
Article: 725
Flanges: UNI EN 1092-2 PN 25
Design: EN 1074
Face to face length: EN 558-1 serie 1
Installation: horizontal with the flow following the
direction of the arrow.
APPLICATIONS • Diatermic oils • Steam • Overheated water • Oil & refineries • Industry

The cast steel globe valves with bellows do not need any maintenance. The bellow in stainless steel 304 avoids any contact between the fluid and the stem, for this reason the valves are free from maintenance. The bellow is granted for 8000 movements. The bellow sealed globe valves are suitable for severe services, such as diatermic oils, steam and flammable fluids.

Materials
body  cast steel GS-C 25, GP-240-GH
bonnet cast steel GS-C 25, GP-240-GH
handwheel  steel
stem  stainless steel X 20 CR 13
bellow stainless steel 304
body and disc seat facing stainless steel 304
disc  steel
packing graphited
bonnet gasket graphited
painting nitro enamel
DN L mm. H mm. D mm. Weight kg.
 15  130  270  95  3.7
 20  150  270  105  4.3
 25  160  285  115  4.7
 32  180  290  140  11
 40  200  310  150  12.3
 50  230  320  165  18
 65  290  410  185  30
 80  310  425  200  36
 100  350  530  235  51
 125  400  550  270  63
 150  480  590  300  86
 200  600  720  370  175
 250  730  790  450  250
 300  850  830  515  320
DN Nominal pressure Test pressure MPa Max working pressure MPa
mm BAR body seat 120°C 400°C
15 - 300 25 4,0 2,75 2,5 1,3