Searches
Further Information
Ductile Iron Fully Lugged Butterfly Valve
Return to search results >4970, 4970G - Ductile Iron Fully Lugged Butterfly Valve
Pressure/Temperature Rating
16 bar from -10 to 120 degs C.
15.7 bar at 130 degs C.
Test Pressure
Body: 24 bar
Seat: 17.6 bar
Specification
Generally conforms to BS EN 593
Ductile Iron body epoxy coated
Fully Lugged
Stainless steel disk
EPDM liner
To suit flange connections BS EN 1092-2 PN16
Valves may be used for flow regulation
Valves DN250 and larger supplied as standard with fully enclosed gear operator.
Valves DN450 and larger supplied with spur gear unit as part of gear operator.
Technical Helpline: 0845 604 1790
Material Specification
| Component | Material | Specification BS EN |
|
|---|---|---|---|
| Body | Ductile Iron | 1563 EN-JS1030 | A536-65-45-12 |
| Operating Shaft | Stainless Steel | 10088-1 X12Cr13 | A276 410 |
| Disk | Stainless Steel | 110213-4 GX5CrNiMo19-11-2 | A351 CF8M |
| Taper Pins | Stainless Steel | 10088-1X5CrNiMo17-12-2 | A276 316 |
| Bushes | PTFE | ||
| O-ring | Buna N | ||
| Liner | EPDM |
Dimensions
| Nominal Size | mm | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | mm | 44 | 48 | 48 | 54 | 57 | 57 | 63 | 70 | 79 | 79 | 89 | 108 | 133 | 156 |
| B | mm | 83 | 95 | 102 | 124 | 136 | 150 | 197 | 210 | 248 | 280 | 305 | 381 | 381 | 458 |
| C | mm | 195 | 207 | 213 | 232 | 245 | 257 | 305 | - | - | 369 | 400 | 422 | 480 | 562 |
| D | mm | 162 | 175 | 181 | 200 | 213 | 225 | 260 | 292 |
FUTURE VALVE TECHNOLOGY
