481-00
Sewage water knife gate valve with loose flanges, long

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

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
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
Wish List
1)
Special advantage in case of 4-hole flanges (old standard): flange can be rotated.

Loose flange with special drilling pattern on request

Hawle
informations video