Flanged
ALFA 50 ANSI 300
Flanged type ball valve. Split body ball valve. Reduced bore
Split body type valve, bolted connection, reduced bore
Floating ball. Wide range of application, industries and medium
Available in different materials (bar stock or casting). Duplex, superduplex, nickel-based halloys, bronze-alluminium alloys and other exotic materials available on demand
- Size range: 2”x1.1/2” ≤ DN ≤ 8”x6” / 50x40 ≤ DN ≤ 200x150
- Pressure range: ANSI 300
- Standard temperature range: -40°C ≤ T ≤ +200°C
- Flange facing RF according to: ASME B16.5
- Flange drilling, smooth holes according: ASME B16.5
- Face to face: ASME B16.10
- Designed according to : ASME B16.34 / API6D / PED 2014/68/UE
- Tightness class : grade A (Zero Leakage) acc. EN 12266-1
| DN | 50x40 | 65x50 | 80x65 | 100x80 | 150x100 | 200x150 |
| ø” | 2”x 1½” | 2½”x2 | 3”x2½” | 4”x3” | 6”x4” | 8”x6” |
| ø E | 38 | 51 | 64 | 76 | 102 | 152 |
| L | 216 | 241 | 283 | 305 | 403 | 419 * |
| M/R | 275/- | 275/- | 380/- | 380/- | 440/500 | * |
| H | 118 | 126 | 143 | 149 | 191 | 273 |
| h | 95 | 103 | 122 | 127 | 157 | 218 |
| P | 63 | 68,5 | 82 | 88,5 | 111 | 153 |
| f/t | 16/10 | 16/10 | 22/14 | 22/14 | 30/18 | 45/30 |
| Kg. (1)/(2) | 17/- | 22,5/19 | 35/25 | 48/36 | 90/67 | 147/105 |
| ISO 5211 | F05 | F05 | F07 | F07 | F10 | F14 |
| ø F | M6 | M6 | M8 | M8 | M10 | M16 |
| ø G | 50 | 50 | 70 | 70 | 102 | 140 |
FLANGE FACING
Available all flange facings, according ASME/EN standards.TYPE C/D/E/F on EN flanges (A68) on casting and bar executions
TYPE RJ/LF/LG/SF/SG on ANSI flanges only on bar executions, due to the different face to face BW ASME B16.25 SW ASME B16.11
DOUBLE BLOCK & BLEED VALVES
Double ball + threaded/flanged drain valve that allow to drain the medium inside the body valve in closure (only on bar stock valves, special execution, customized face to face)
F1 FtF
Valve family ALFA 68 is available with special Face to Face according to standard DIN 3202-1 F1 (equivalent to EN558-1 Serie 1), specifically designed for chemical applications.Valve available both by forged bar and casting.
STANDARD EXECUTIONS
STEM O’RING
Maximum tightness from stem packing minimizing Fugitive Emissions (valve certified TA-LUFT e Fugitive Emissions EN 15848- 1/-2)
ANTISTATIC DEVICE ACCORDING API6D - ATEX 2014/34/UE
2 spring loaded balls guarantees electrical continuity between all metallic components of the valve
ANTI BLOW-OUT STEM DESIGN
In case of overpressure inside the valve it avoid the stem expulsion and the breakage of the operating element
