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€1,818.63incl. VAT
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Brand | ARI |
Series | 23.405 |
Type | 2577 |
Function | Two-way valve |
Norm | EN (DIN) |
Construction type | Straight |
Housing material | Ductile cast iron |
Material quality | EN-JS1049 |
Process connection | Flange |
Size process connection | DN25 |
Connection size | DN25 |
Standard connection | EN 1092-2 |
Pressure rating | PN25 |
Flange finish | Raised face |
Face to Face norm | EN 558, Series 1 |
Face to Face length | 160 mm |
Type of disc | Fixed disc |
Kv value | 12 m³/h |
Closing pressure | 22.4 bar |
Max. pressure difference in opened position | 2 bar |
Actuation | Pressure below the valve |
Actuator | DP32 |
Type of actuator | Pneumatic membrane |
Type of drive | Single acting |
Function actuator | Spring closing |
Diaphragm area | 250 cm² |
Pilot pressure | 1.4 to 6 bar |
Connection operation | 1/4" (8) internal thread (BSPP) |
End contacts | 2 x Mechanical |
Position indicator | Yes |
Emergency manual operation | No |
Stem seal type | Roof cuffs |
Primary spindle seal material | PTFE |
Material disc | 1.4021+QT |
Seat material | 1.4021+QT |
Spindle material | 1.4021+QT |
Material bonnet | EN-JS1049 |
Bonnet gasket material | Graphite |
Surface protection | Paint min. 30 µm |
Actuator material | Steel |
Explosion-proof | No |
Medium temperature | from -10 to 220 °C |
Ambient temperature | from -10 to 80 °C |
DN | DN25 |
Actuator | DP32 |
A | 250 mm |
c | 1/4" BSP |
H | 439 mm |
L | 160 mm |
Weight | 14 kg |