- 1)
- Special advantage in case of 4-hole flanges (old standard): flange can be rotated.
481-00
Sewage water knife gate valve with loose flanges, long
| Material: |
Body: GJS-400, Hawle epoxy powder coated Spindle, shut-off blade: stainless steel O-ring gasket set: POM/NBR |
|---|---|
| Max. operating Pressure: | Sewage water: 10 bar |
| Medium | Sewage |
The Hawle exchange gate valve for sewage water with restraint loose flange system is suitable for buried installation and plant installation mainly for the exchange of existing valves. The reliable and tight shut-off function is ensured via a shut-off blade of hard-rolled stainless steel and an O-ring gasket package. The gasket package prevents solids from sticking to the spindle and, in case of repair, permits the exchange of the valve bonnet without taking the pressure line out of service.
The flange gaskets are already included in the barrel gaskets. Therefore, no keying is required between the flanges.
Apart from its real function as shut-off valve, the exchange gate valve can also be used as dismantling piece because of the integral loose flange system (no additional dismantling piece required).
The valve can be operated via handwheel, extension spindle, or electric actuators (for DN 80 and higher, on request).
Flange dimensions acc. to EN 1092-2
Face-to-face dimension:
Group 15 acc. to DIN EN 558-1
|
Order Nr.
|
*) |
DN |
PN |
d min. |
L |
H |
Square of spindle |
Medium | Weight | Specification | 3D | Basket |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
4810500020
|
50 | 10 | 48 mm | 250 mm | 205 mm | 12,3 mm | 8,80 kg | |||||
|
4810800020
|
1) | 80 | 10 | 76 mm | 280 mm | 295 mm | 14,3 mm | 16,30 kg | ||||
|
4811000020
|
100 | 10 | 96 mm | 300 mm | 320 mm | 14,3 mm | 20,50 kg | |||||
|
4811250020
|
125 | 10 | 121 mm | 325 mm | 424 mm | 17,3 mm | 33,00 kg | |||||
|
4811500020
|
150 | 10 | 145 mm | 350 mm | 410 mm | 17,3 mm | 38,00 kg | |||||
|
4812000020
|
200 | 10 | 172 mm | 400 mm | 532 mm | 19,3 mm | 58,00 kg | |||||
|
4812500020
|
250 | 10 | 247 mm | 450 mm | 832 mm | 27,3 mm | 186,44 kg | |||||
|
4813000020
|
300 | 10 | 297 mm | 500 mm | 807 mm | 27,3 mm | 198,00 kg |
-
Loose flange with special drilling pattern on request
-
For selecting the suitable handwheel, the dimension of the square of spindle must be observed.
|
Technical Documents
|
|---|
| Declaration of conformity - Sewage Gate Valves 480, 481, 482 |
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