What is a Dome Valve? Benefits, Working & Dome Valve Spare Parts  

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Introduction

In industrial processes, material handling is a foremost task. Safe management of solids, liquids, and gases requires being equipped with reliable handling solutions.

Maintaining quality, smooth movement, and precise transport of materials is essential for operations. Industries therefore rely on specialized equipment to streamline the process. One such device is the dome-shaped valve—used in bulk material handling systems to control the flow of a variety of materials.

Let’s learn about it in detail for a clearer understanding.

What is a dome-shaped valve?

A dome-shaped valve is an electro-pneumatic valve that controls material flow in various systems. It handles abrasive, hazardous, and even toxic materials, making it highly useful in material handling.

The valve features a distinctive curved dome and a unique inflatable seal system. With its safe, leak-proof construction and position-controlled operation (fully open, fully closed, and intermediate), it is a reliable choice across industries.

Benefits of a dome-shaped valve

• Electro-pneumatic operation: Actuated by a linear cylinder or rotary actuator and controlled via electrical signals, enabling integration with electronic control systems.
• Position-controlled modes: Full open, full close, and intermediate position control provide accurate regulation of material flow.
• Robust & reliable design: Leak-proof construction suitable for abrasive and toxic materials improves durability and uptime.
• Unique inflatable seal system: Compressed air inflates the seal at the dome’s edge to create a tight, leak-proof barrier.
• Pressure endurance: Withstands high pressures, typically up to 20 bar(g), supporting demanding process conditions.

How does it work?

The dome-shaped valve enables or blocks material flow using an inflatable seal and an actuator. The sequence is:

1. The valve starts in either an open or closed position.
2. Open position: The flow path is clear and materials pass through.
3. Closed position: The flow path is blocked and material movement stops.
4. To close: air pressure is supplied to the inflatable seal, expanding it around the dome’s edge to form a tight seal.
5. The inflated seal effectively stops the flow of materials.
6. To open: air pressure is released from the seal, allowing it to relax.
7. The actuator (rotary or linear) then moves the dome to the open position, restoring flow.
8. Throughout operation, precise control of open/closed/intermediate positions maintains accuracy and efficiency.

Dome-shaped valve spare parts

A dome-shaped valve comprises several components, including:

• Dome (body)
• Inflatable seals
• Actuators (linear or rotary)
• Dome disc
• Static/dynamic seals
• Pressure control sensors

Conclusion

The dome-shaped valve by Rieco offers safety, durability, and precise control to enhance industrial operations—simplifying material handling with viable, long-lasting solutions.

We serve multiple industries with effective, progressive solutions. Decades of experience help us deliver reliable equipment and seamless operations, earning trust over the years.

To know more about Rieco, visit www.rieco.com.