Media Water
Construction Cast iron
Stainless steel
Max. pressure (bar) 20
Min. connection size (mm) 200
Max. connection size (mm) 2000
 
 

The Blackhall submerged discharge valve is suitable for applications when low discharge noise is a requirement and / or when space is at a premium.

The valve is designed so that the discharge occurs underwater into a stilling well reducing both noise and the space required (a stilling basin is not needed). Details of the sizing for the valve and stilling wells are available from Blackhall Engineering.

This type of valve can also be known as a vertical sleeve type valve. The Submerged Discharge valve offers a quiet and compact discharge footprint. Typically used in dams and reservoirs to substantially increase their drawdown capacity in emergency situations where space is at a premium.

Features

  • High-flow discharge coefficient.
  • Quiet operation.
  • Compact installation, no large discharge spillway required.
  • CFDA contoured cone on exit for optimum flow characteristics.
  • Balanced during operation (low operating power requirements).
  • Capable of high pressure discharge.
  • Highly stable flow control.
  • Heavy-duty design and construction.
  • Low maintenance and long life.
  • Elimination of cavitation and vibration


• Options

  • Various discharge port characteristics options available.
  • Ported trims within valve throat.
  • Emergency overrides.
  • Manually / electrically / float actuated.
  • Remote / direct operation.


Technical

  • High discharge capacity (K = 1.62).
  • Medium velocity discharge capability (up to 6 m/s).
  • Pressures typically up to 20 bar.
  • Size range: DN200-DN2000 (normally larger inlet than outlet).
  • Materials: cast iron / cast steel / stainless steel.
  • Cast or fabricated


The Blackhall submerged discharge valve is suitable for applications when low discharge noise is a requirement and / or when space is at a premium.

The valve is designed so that the discharge occurs underwater into a stilling well reducing both noise and the space required (a stilling basin is not needed). Details of the sizing for the valve and stilling wells are available from Blackhall Engineering.

This type of valve can also be known as a vertical sleeve type valve. The Submerged Discharge valve offers a quiet and compact discharge footprint. Typically used in dams and reservoirs to substantially increase their drawdown capacity in emergency situations where space is at a premium.

Features

  • High-flow discharge coefficient.
  • Quiet operation.
  • Compact installation, no large discharge spillway required.
  • CFDA contoured cone on exit for optimum flow characteristics.
  • Balanced during operation (low operating power requirements).
  • Capable of high pressure discharge.
  • Highly stable flow control.
  • Heavy-duty design and construction.
  • Low maintenance and long life.
  • Elimination of cavitation and vibration


• Options

  • Various discharge port characteristics options available.
  • Ported trims within valve throat.
  • Emergency overrides.
  • Manually / electrically / float actuated.
  • Remote / direct operation.


Technical

  • High discharge capacity (K = 1.62).
  • Medium velocity discharge capability (up to 6 m/s).
  • Pressures typically up to 20 bar.
  • Size range: DN200-DN2000 (normally larger inlet than outlet).
  • Materials: cast iron / cast steel / stainless steel.
  • Cast or fabricated


Industrial valves - products from other companies

Industrial valves - all companies