Flange-Throttle Valves (FLD)

The FLD is a flange valve made for heavy duty use. It works reliably, even with dust-laden mediums and at high frequency of operation. The dismantling of the pipeline is, as opposed to ring throttle valves, on one side of the valve possible without it to be affected.


The flange throttle valve type FLD-16 with flanges drilled according to DIN 1092-1 PN-6, PN-10 or PN-16, is installed in pipelines. This valve is characterized by its robust and heavy construction and works reliably even in difficult environments.

Depending on the application (temperature, medium, pressure), we can customize this valve of almost any material available on the market.

With our three sided coated sealing gasket we can offer an impermeability of at least 99,95% as compared to the fully opened disc even at high pressure. To achieve a leakage rate of 0%, the valve will be charged with sealing air.

FLD-16 - Standard Configuration
Sizes (DN) 15 – 2000 (up to 5000 possible as a custom order)
Type Flange valve
Standards DIN 1092-1 PN6 – PN16 as a standard up to PN 100 feasible
Operating Temperatures -100°C to +1100°C
Operation options
  •  With free shaft-ends
  •  Manual operation with a grid handle with locking mechanism
  •  Continuously variable fine adjustment
  •  A corresponding shaft adaption with the DIN ISO 5211 mounting kit
  •  With an attached actuator (pneumatic, electric or hydraulic)
FLD-16 - Closing Types and Impermeability Classes
Swing Through 99% impermeability compared to fully opened disk
With a Stop Bar in the Body 99,5% impermeability compared to fully opened disk
With a Stop Bar and Gasket 99,95% impermeability compared to fully opened disk
Sealing Air Up to 100% impermeability

More Information

JASTA Valve FLD-16 / Product Brochure PDF File



  • HERING AG, Gunzenhausen
  • HESCH Industrietechnik GmbH, Fürth
  • Ventilatorenfabrik Oelde GmbH, Oelde