with minimum cooling and exchangeable cooling rings

Hot Blast Valves

Design Features Of Hot Blast Valves

  • Minimized heat loss due to optimized isolation of body and bonnet.
  • Special design cooling water passages provide optimum flow.
  • Sealing in both direction, floating paddle design.
  • Valve actuation in accordance with customers´requirements (man./ electr. / hydr. / pneum.)
  • Pressure rating up to 6 bar.
  • Service temperatures up to 1550°C
  • Nominal sizes up to 3000mm (120 inch).


  • Customized prefabricated cooling water rings can be ordered in advance of the planned refurbishment.
  • All strength and leakage tests can be executed inadvance.
  • Manufacturing time for refurbishment can be reduced to a minimum.

The Design Guarantees

  • Considerable reduction of required quantity of cooling water
  • Extended operational life of the valve due to thermal insulation which reduce the thermal insulation which reduce the thermal stresses to the valve.
  • Less deposits in cooling water channels, by decreasing the area cross section of the channel and increasing the speed.
  • Improved maintenance due to optimized valve design and exchangeable body seats.
  • Reduced operating costs due to decreased heat loss and reduction in amount of cooling water.

Yearly Savings Up To...


EURO (€)


tons CO2


tons COKE

VCL – Product Range

Hot Blast Valves

With minimum cooling and exchangeable cooling rings.

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Tuyere Stocks

Energy saving patented design

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Double Plate Wedge Gate Valves
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Dust Outlet Valves
Lever Valves
Goggle Valve
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Double Eccentric Valves
Butterfly and Louver Valves
Bleeder Valves

The VCL Bleeder valves provide safety from blast furnace overpressure. Typical implementation involves installation of two to three raw gas Bleeder valves at the top of the blast furnace uptakes and one on the semi-clean gas-side of the first scrubbing stage.

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Equalising & Relief Valve

Rapid material hopper pressurisation and relief, and abrasive, dust-laden gas led to the devel- opment of the VCL full-section-opening swing-type equalising and relief valve.

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Gritzko II - Dust Discharge Valve

The VCL GRITZKO II Dust Discharge Control Valve is based on the proven pulverised coal control valve, adapted for use in the blast furnace dust extraction system.

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Stove and Blast Furnance Special Valves
  • Equalizing / Relief Valves
  • Coffee Pot Bleeder Valves
  • Google Valves
  • Two Lever Valves
  • Butterfly Valves
  • Double Eccentric Valves
  • Snort Valves
  • Back Draft Valves
  • Hot Blast Valves
  • Explosion Valves
  • Louver Valves
High-performant, reliable and Secure Valves for
  • top gas pressure equalizing and relief valve
  • control of process media in large diameter pipelines
Additional Products
  • Push Lever Valves
  • Snort Valves
  • Bleeder Valves
  • Equalizing & Relief Valves
  • Back Draft Valves
  • Non Return Valves
  • Line Blinds
Additional Services
  • Repair Service
  • Refurbishment and Modifications
  • Spare parts for each kind and brand of Valves

VCL - Valve Competence Luxembourg S.A.

Zone Industrielle „Am Potaschberg“
19, op der Ahlkërrech
L-6776 Grevenmacher


Head Office

Jessica Schomer

Tel.: +352 276854-0
Fax: +352 276854-99


Mario Kratz


Manuel Wenner