Dome Valve Manufacturers in India, Chennai

As a power-operated valve, Dome valves are high-pressure valves that have the unique ability to open and close with a pressure-tight seal. They come with a unique inflatable sealing mechanism which makes them safe & reliable and provides greater control. Also, irrespective of the application – abrasive, toxic, friable or hazardous – dome valves offer high performance and are capable of returning over one million maintenance-free cycles.

Features And Technical Specifications

• It can handle a nominal pressure of 10 bar (g). However, designs for pressures up to 42 bar (g) can also be provided.
• It can handle a material temperature range from 200 degrees up to 350 degrees Celsius.
• The valves are operated through Pneumatic rotary actuator, pneumatic linear cylinder or Hydraulic actuator.
• Provisions of limit switches, proximity sensors as well as top/bottom adaptors.

Dome Valves Are Used For

• Ash
• Alumina
• Chemicals
• Hazardous Materials
• Minerals
• Ores
• Sand

Dome Valve Working Principle

• When the seal is relaxed (not inflated), the dome component can open resulting in a full bore opening hence allowing material to pass through and fall from the dome valve into the bottom process.
• In the closed position, high-pressure air / gas enters the space between the back-side of the seal face and the insert ring. This causes the face of the seal to expand towards the dome surface, irrespective of the particle size and shape. This ensures pressure tight sealing of the dome.

Various Dome Valve Spare Parts

• Top Adapter
• Top Plate
• Insert Ring
• Inflatable Seal
• Seal Retaining Ring

Dome Valve Benefits

• Proven Concept: The concept of a dome valve with an inflatable seat was introduced to the industry in the late 1970s. Since then more than 40,000 dome valve installations have been completed successfully.
• High Pressure: Whether retrofitted to vessel inlets, vents or outlets, the dome valve performs optimally under pressures of up to 30 bar (g). For valve sizes up to 600mm, applications of up to 42 bar (g) have been completed successfully.
• High Temperature: Likewise, it can handle material temperatures of up to 350 °C. This was achieved through a unique water-cooling process to the spherical component and the elastomer housing.
• Full Bore Opening: One of the primary benefits of dome vale with an inflatable seat is it offers full bore opening which ensures that there is no obstruction to the flow of the material.

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