Asbestos Engineering Co.

Asbestos Engineering Co. is a company that manufactures a variety of industrial products, including metal expansion joints. These components are used in piping and ducting systems to absorb thermal expansion, movement, vibration, and misalignment, ensuring the integrity and longevity of mechanical systems.
Purpose and Application:

Metal expansion joints are crucial in systems where pipes or ducts are subjected to thermal expansion or movement. These joints provide flexibility and prevent undue stress on the system, particularly in high-temperature or high-pressure environments, such as:

• Boilers
• Heat exchangers
• HVAC systems
• Power plants
• Chemical plants

Construction and Materials:

• Metal Bellows: The primary component of the expansion joint is usually made from high-quality metallic bellows, which can absorb the expansion or contraction of pipes or ducts. Common materials used for the bellows include stainless steel (e.g., 304, 316 grades), Inconel, and other high-performance alloys.
• End Fittings: These provide the connection points between the expansion joint and the surrounding piping. They could be flanged, welded, or threaded, depending on the design requirements and the application.
• Reinforcement: In some designs, additional reinforcement such as braids or outer sleeves is used to increase pressure resistance and control the expansion joint’s movement.

Advantages of Asbestos Engineering Co.'s Metal Expansion Joints:

• Durability: The use of high-grade materials ensures that the joints will have a long operational life even in challenging environments.
• Customizability: Asbestos Engineering Co. typically offers tailored solutions for specific industry needs, designing joints that fit the unique thermal, movement, and pressure demands of the system.
• Versatility: These expansion joints can accommodate a variety of movements, including axial, lateral, angular, or a combination, making them suitable for different applications.
• Vibration Dampening: They help reduce vibration and noise within the piping system, improving operational efficiency and comfort.

Open truck loading bellows are used for dust free loading of powdered and granular bulk solids into flatbed open trucks. Free flowing dry bulk solids in powder and granule form are easily transferred from silos, hoppers, containers, screw feeder to open trucks. Built in flexible dust skirt prevents the dust emission outside of the loading region.

 

Operation of Open Truck Loading Bellows

At the beginning of open truck loading, bellow is lowered towards the flatbed of truck and stops at the bottom. Flexible dust skirt located at the bottom side of bellow keeps the dust content inside the loading region. During material discharge, it provides a closed containment for dust. Dust collection system collects any fugitive dust in the region and prevents dust emission to surrounding. Collected dust is sent back to the product stream continuously and no material is wasted during loading. Built in level sensors monitor the product level below the loading bellow dust skirt. When the material level increases, bellow is retracted upwards automatically and it maintains a space to let the material flow rapidly. After truck loading is finished, product discharge valve above the loading bellow is closed. System waits for few seconds to complete product flow and to collect remaining dust by dust collector. Loading bellow automatically retracts to the top position afterwards.

    ADVANTAGES

– Dust free loading
– Dust free working region, prevention of dust pollution, ensure plant and environmental safety.
– Suitable for different bulk solids conveying and storage systems
– Loading is possible from different equipment like silo, hopper, screw feeder, conveyors etc.
– Extensive range of models are available for wide range of needs
– Built in flexible dust skirt to prevent dust emission outside of the loading region.
– No spillage and no product waste
– Materials with high temperatures up to 300 C can be loaded.
– Food grade loading bellows are available
– Simple operation
– Easy maintenance

Handled Materials

 

Cement, fly ash, mining minerals, calcium carbonate, pvc, plastic pellets, plastic powders, alumina, bentonite, bauxite, coal, cement clinker, gypsium, kaolin, limestone, marble powder, soda ash, quartz, urea, sodium sulphate, wheat, flour, animal feed, seed, corn, rice, sugar, salt and similar powdered and granular dry bulk solids.