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Ingredients : |
Steel, Stainless Steel, Monel, Hastelloy, Duplex, Super Duplex, Other |
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Connection : |
Flanged, Welded |
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Drive Unit : |
Manual, Electric, Pneumatic, Hydraulic |
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Temperature : |
(-200 °C) – (+550 °C) |
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Nominal Diameter : |
2″ – 36″ |
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Rated Pressure: |
Class 150 – 600 |
Dual Expanding Plug valves are an innovative type of valve that provides precise flow control and superior sealing in industrial processes. Offering safety, durability and efficiency in critical systems, these valves are an essential part of modern industrial applications.
Dual Expanding Plug valves are two-way valves with an innovative design that provide superior sealing for fluid control. In these valves, the internal mechanism works on the principle of expansion to both cut off the flow and ensure sealing. This feature of the valve provides a great advantage in applications targeting zero leakage.
These valves are generally preferred in critical lines transporting gases, liquids and chemicals. They offer reliable performance, especially in systems operating under high pressure and temperature conditions, increasing operational safety and extending equipment life.
The operating principle of Dual Expanding Plug valves is based on a double expanding mechanism. When the valve is opened, the internal mechanism retracts, allowing the flow to flow completely and leaving no obstruction along the flow path. When the valve is closed, the internal mechanism expands and fits tightly into the pipeline, thus ensuring a tight seal even under high pressure.
This expansion action offers double-sided security as it seals on both the inlet and outlet side. It also ensures complete compression when the valve is closed, both preventing leaks and preventing contamination of the interior. This design makes Dual Expanding Plug valves particularly ideal in hazardous and sensitive applications.
Dual Expanding Plug valves offer many advantages thanks to their unique design and features. Here are the main benefits of these valves:
The valves are designed for applications requiring zero leakage. The double expanding mechanism ensures an effective seal on both inlet and outlet side.
Dual Expanding Plug valves can operate bi-directionally and are not dependent on the flow direction. This feature offers application flexibility and ease of use.
These valves are designed to operate under high pressure and temperature. They are manufactured using materials that are resistant to wear and corrosion, ensuring long-lasting performance.
Thanks to their modular design, maintenance operations can be carried out quickly and easily. In addition, maintenance frequency is minimized as the mechanism is resistant to abrasion.
Since there are no bumps or obstructions in the flow path, flow losses are minimized and energy efficiency is increased.
Dual Expanding Plug valves are used in a wide range of applications. Here are the main sectors where these valves are widely preferred:
Dual Expanding Plug valves offer high performance and reliability in demanding applications. In systems with zero leakage requirements, the unique design of these valves ensures complete sealing. They also offer long-term cost savings thanks to their durable construction and low maintenance requirements.
These valves offer superior performance in terms of both safety and energy efficiency. Precise flow control and the ability to operate bi-directionally offer great flexibility and operational advantage for businesses.
Dual Expanding Plug valves are a flow control solution that provides high safety and efficiency in industrial systems. The dual expanding mechanism ensures zero leakage, enabling the safe transportation of hazardous materials. It meets the long-term needs of businesses with its durability, flexibility and low maintenance needs.
If you are looking for a reliable, durable and performance-oriented valve for your critical processes, Dual Expanding Plug valves are the ideal solution for you.
| The valve is fully open.
The seat slides (yellow) are protected from the flow path. |
2nd rotation
.Plug (red) is rotating. There is no contact between the body and the slides during rotation. |
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| 3.Expansion
Plug / plugs rotated 90°, plug starts to expand the plugs. The belts only move perpendicular to the body sites. The plug/slide assembly is held centered in the body by upper and lower bushings. |
4. DBB
The valve is seated. The flexible seals are compressed. The flexible seals are not damaged by excessive torque of the operator. The double blocking and unloading function can be tested by opening the unloading valve. |
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| 5. Starting to Open
The valve starts to open. The plug moves upwards, pulling the slides back from the body slots. The plug is held centered in the body by the upper and lower bushings. |
6. Slips retracted
The slides are retracted and returned to the open position before rotation. (Fig. 1 and 2 work in reverse order) |
DBB-Dual Expanding Plug valves securely control flow by sealing on both inlet and outlet side thanks to the double expansion mechanism. When the valve is closed, the mechanism expands and fits tightly into the pipeline, ensuring zero leakage performance.
DBB-Dual Expanding Plug valves offer zero leakage performance and increase safety standards by providing double-sided sealing. In addition, their durable construction and low maintenance requirements ensure long service life and cost savings.
DBB-Dual Expanding Plug valves are widely used in critical industrial processes such as oil and gas pipelines, chemical plants, refineries and power plants. They are especially preferred in applications where zero leakage and reliable flow control are required.
The most important feature of DBB-Dual Expanding Plug valves is that they provide complete sealing on both inlet and outlet side thanks to the double expansion mechanism. This feature increases operational reliability by offering zero leakage performance in systems with high safety requirements.
