improved design

Equalizing/Relief Valves

Design Features Of Equalizing/Relief Valves

  • Fabricated Construction
  • Valve actuation with hydraulic Cylinder (Standard)
  • Pressure rating up to 3,0 bar
  • Service temperatures up to 500 °C
  • Nominal sizes DN 250 – DN 600
  • Other sizes or operating conditions on request

This Design Guarantees

  • Seat may be dismantled through the maintenance door without removing the valve itself
  • Reduced maintenance and improved accessibility of equipment due to large maintenance door
  • The dismantling of the welded lever/ flap unit is possible, thus facilitating maintenance and exchange
  • Higher reliability & availability thanks to continuously improved design and customer feedback over several years
Full opening diameter[mm] 250; 400; 500; 600
Opening time [s] 3
Closing time [s] 3
Max furnace top pressure [ bar ] 3
Hydraulic pressure on cylinder [ bar ] 180 – 220

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 worldwide patented design

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Double Plate Wedge Gate Valves

Single And Double Plate Isolation Valves

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Dust Discharge Valves

Rotating Disc

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Lever Valves

Improved design

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Goggle Valve

„MAN SAFE“ isolation valves

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Double Eccentric Valves
Butterfly and Louver Valves
Equalizing & 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 equalizing and relief valve.

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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
Bleeder Valves

Blast furnace safety valves

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Download PDF
Dust Discharge Valve

GRITZKO II Dust Discharge Control Valve

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


Mario Kratz

E-mail: mario.kratz@vcl.lu

Rainer Zilliken

E-mail: rainer.zilliken@vcl.lu