Graf Vortex Flow Control Shaft Large DN600

GrafSKU: 70004

Excl Vat


Vortex flow control shaft VS-Control external Dynamic choke from GRAF. 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 
  • Used with storage modules, welded into watertight plastic liners
  • Used with GRAF underground tanks
  • Used with retention tanks provided by the customer 
  • Flexible adaptation to the local site conditions using GRAF shaft components
  • Project specific dimensioning of the replaceable orifice
  • Different shaft sizes for individual requirements
  • No wear because there are no moving parts
  • Low-maintenance, because of the self-cleaning-effect through vortex flow
  • Extremely good revision capability

Graf Vortex Flow Control Shaft Brochure

Free delivery is included in the price of all products over €100. Delivery should be between 3-5 days normally. Larger tanks and custom made GRP products will have a 14 day lead time to site. We endeavour always to get products to site in the shortest time frame. Refer to our shipping policy for more detailed information.

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