- 1)
- For the version with BAIO® spigot end, a twist-lock device (Ord. No. 529 000 0004) must be used.
490-01
Freeflow underground hydrant with duckfoot bend
| Material: |
Cast components: GJS-400, Hawle epoxy powder coated Medium pipe: stainless steel, Hawle epoxy powder coated Spindle/shut-off blade/shut-off blade driving mechanism: stainless steel Protection jacket: PP (polypropylene) Sealings: EPDM acc. to KTW-BWGL for water |
|---|---|
| Max. operating Pressure: | Potable water: 16 bar |
| Medium | Water |
Because of the separation of operating and medium pipe the Hawle underground hydrant with integrally cast duckfoot bend features considerably better hydraulic conditions in open position than hydrants with conventional shut-off function via valve plug. Compared to conventional underground hydrants, the compact design ensures an extremely low dead water quantity and also permits easy and quick installation. Shut-off is effected via a shut-off blade of stainless steel. The shut-off blade is moved horizontally against fixed stops in a housing via eccentric mechanism and gear at low wear.
Q = 153 m³/h at 1 bar pressure difference
Min. cross section: 70 mm
Outlet: BAIO®, restraint loose flange
Opening/closing: 15 revolutions
Drain-off function: acc. to DIN EN 1074-6
When pipe fittings are to be connected to the type with horizontal BAIO® spigot end outlet, the twist lock device Ord. No. 529 (see supplementary products) shall be used.
|
Order Nr.
|
*) |
DN |
Pipe cover depth |
Connection |
A |
B |
B1 |
Medium | Weight | Specification | Basket |
|---|---|---|---|---|---|---|---|---|---|---|---|
|
4900851001
|
1) | 80 | 1,00 | Spigot end | 1010 mm | 420 mm | 305 mm | 44,80 kg | |||
|
4900851251
|
1) | 80 | 1,25 | Spigot end | 1260 mm | 420 mm | 305 mm | 46,00 kg | |||
|
4900851501
|
1) | 80 | 1,50 | Spigot end | 1510 mm | 420 mm | 305 mm | 48,00 kg | |||
|
4900861001
|
80 | 1,00 | Flange | 1010 mm | 420 mm | 305 mm | 47,00 kg | ||||
|
4900861251
|
80 | 1,25 | Flange | 1260 mm | 420 mm | 305 mm | 49,00 kg | ||||
|
4900861501
|
80 | 1,50 | Flange | 1510 mm | 420 mm | 305 mm | 51,00 kg |
-
Special lengths on request.
-
Alternatively: version with push-on cover (factory mounted) Order No.: 490.080.0520
-
Breakaway set/predetermined breaking point on request (Order No.: 490.080.0580)
-
Surcharge for suction drainage device (Ord. No.: 491.080.0505) for installation in ground water)
-
On request also available as "height adjustable" version or as tele hydrant.
-
On request, also available with front-side outlet (ZAK46, 1 1/2" or 1 1/2" with sealing surface ).
|
Technical Documents
|
|---|
| Declaration of performance - Underground hydrants |
|
Operating instructions
|
|---|
| Operating and maintenance instructions - Freeflow Underground Hydrant |
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