Otto Graf GmbH
Plastic Products
Tel. +49 7641 589-0
Fax +49 7641 589-50
export@graf.info
www.graf-water.com
Carl-Zeiss-Straße 2-6
DE-79331 Teningen, Germany

Vortex flow control shaft  

The dynamic choke regulates volume flows of up to 65 l/s.


Instructions
Sizing form/
Tender file
Dimension drawing
Sizing form for Vortex flow control shaft VS-Control external
Vortex flow control shaft VS-Control External S
Vortex flow control shaft VS-Control External M
Vortex flow control shaft VS-Control External L

With the vortex flow control shaft can be regulated volume flows of up to 65 l/s. The vortex flow control shaft VS-Control External is ideal for retention systems fitted with Graf EcoBloc ditch elements or retention cisterns.

  • Continuously variable installation depth of 985 mm – 6500 mm (38.8" – 21' 4")
  • Minimal height offset between the inlet and the outlet (315 mm (12.4") VS-Control External S; 445 mm (17.5") VS-Control External M; 505 mm (19.9") VS-Control External L)
  • Individually adjustable outflow value
  • Support in the planning and dimensioning of our system
  • Housing can be shortened

Versatile use

  • With storage modules, welded into watertight plastic liners
  • With GRAF underground tanks
  • With retention tanks provided by the customer

Project-specific design

  • Flexible adaptation to the local site conditions using GRAF shaft components
  • Project specific demensioning of the replaceable orifice
  • Different shaft sizes for individual requirements

Reliable in operation

  • No wear because there are no moving parts
  • Low-maintenance, because of the self-cleaning-effect through vortex flow
  • Extremely good revision capability

 

 

 

 

 

 


S

order no.max. discharge value (l/s)Length (mm)Height (mm)Inner Ø dome shaft (mm)add to enquiry
3401502-356151135400

M

order no.max. discharge value (l/s)Length (mm)Height (mm)Inner Ø dome shaft (mm)add to enquiry
3401513-507951880600

L

order no.max. discharge value (l/s)Length (mm)Height (mm)Inner Ø dome shaft (mm)add to enquiry
3401523-658201935600

accessory

Telescopic dome shaft 400

With PE cover, suitable for pedestrian loading, grass green colour

[340053]

Telescopic dome shaft 400 class B

With cast iron cover, suitable for vehicle loading class B, black colour

[340054]

Telescopic dome shaft 400 class D

With cast iron cover, lorry-bearing class D, black colour

[340049]

VS inlet module DN 400 (16")

Incl. profile seal; for realising an emergency overflow; connection DN 150 (6")/DN 200 (8")

[330339]

VS intermediate piece 500 DN 400 (16")

Incl. profile seal; for realising large installation depths, useful length: 500 mm (19.7"), can be shortened to 250 mm (9.8")

[330341]

Spare part set VS-Control External S

For adapting the throttle discharge capacity at a later date

[340153]

Mini telescopic dome shaft with lid, suitable for pedestrian loading

[371010]

Maxi telescopic dome shaft with lid, suitable for pedestrian loading

[371011]

Telescopic dome shaft with cast iron lid, suitable for vehicle loading

[371020]

Telescopic dome shaft TRUCK

Telescopic dome shaft TRUCK for concrete rings

[371021]

Telescopic ventilation shaft Car DN 600 (24")

Incl. cast concrete cover, Class B Support ring and dirt trap

[340149]

Telescopic ventilation shaft Truck DN 600 (24")

Incl. cast concrete cover, Class D Support ring and dirt trap

[340148]

Infiltration inlet module DN 600

Incl. profile seal for telescopic dome shaft; DN 150 (6") / DN 200 (8") / DN 250 (10") / DN 300 (12") connections

[330360]

Infiltration connecting piece 1000 DN600 (24")

With DN200 (8") contact surface, incl. profile seal, length 1000mm (3' 3.3"), 750mm (2' 5.5"), 500mm (1' 7.7")

[371015]

Spare part set VS-Control External M/L

For adapting the throttle discharge capacity at a later date

[340154]

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