Pressure Relief Valve

Pressure Relief Valves consist of a cylindrical housing with a bottom flange to be connected on the silo top, a round plate for negative pressure operation held in position under pressure of a spring rod, an outside round plate for positive pressure kept in position by three spring rods, gaskets, and a protection cover. The spring rods used on centre plate and corners take care of maintaining positive and negative pressure in the Silo. In case of over or under pressure the lids relevant are opened and air is released or taken in to the silo for maintain the optimum pressure


  • Quick responding in case of pressure imbalance
  • Easy to handle and fit due to its lightweight design & reduced dimensions.
  • Maintenance-friendly due to its modular design
  • Maintenance-friendly due to its modular design
  • With protection cover
  • Positive pressure 500 to 1000 MMWG
  • Negative pressure to -10 to -120 MMWG


  • Maintaining optimum Silo Pressure
  • Silo Safety in case of Filter Blockage

Major Sectors:

  • Ready Mix Concrete Industry
  • Asphalt plants, Hot Mix and Wet Mix Plants
  • Cement Plants
  • Dry Premix & Building Materials
  • Paint and Putty plants
  • Glass
  • Food Processing
  • Plastics
  • Chemicals
  • Detergent

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