What Is a Cable Tray?

The cable tray is used to provide mechanical protection in a working environment where a large number of power control cables are at work. In addition to providing mechanical protection, these cables are also designed to provide a perfect routing path for power or control cables. These cables can be in the air or underground.

There are various cable trays of different materials to choose from. The cable trays produced by cable tray manufacturers are galvanized steel, aluminum, stainless steel and glass fiber reinforced plastics. The choice of cable tray depends entirely on the use and installation environment. The installation environment here refers to electrical considerations and corrosion. In addition, cost is also an important determinant when selecting cable trays.

The difference between cable ladders and cable trays

Cable tray

Other common names: trough type, ventilated cable tray

Composed of metal sheets. Many cable trays have grooves to facilitate equipment positioning, cable ties and other fixings, such as tubing clamps.

Suitable for light-duty electrical and instrument cables and pipes.

The bottom cover helps reduce electromagnetic interference, and the perforation allows drainage and ventilation.

The tray provides additional support to prevent the cable from sagging, which may harm the performance of the circuit.

The cable tray is the most beautiful choice. In buildings without paneled ceilings, cable trays are a good option to hide cables while maintaining their organization.

Covers can be added to protect the cables from ultraviolet rays, ice and snow, and damage.

Cable ladder

Other common names: ladder tray, cable runway

The design is simple, and the side rails are connected to the rungs. The rungs are perforated, which makes it easy to fix the cable tie or cable clamp directly on the ladder.

Suitable for electrical, instrumentation and telecommunication cables.

It can support heavier cables, cable bundles and pipes in a longer support span.

The cable can enter and exit anywhere along the span.

The ladder provides free air flow, which is essential to avoid overheating of the cables.

Keep as little water, moisture or dust as possible.

The cables are exposed and easily accessible-making inspections and future modifications uncomplicated.

Covers can be added to protect the cables from ultraviolet rays, ice and snow, and damage.

Oglaend system accessories, such as elbows, t-pieces, cross-pieces and risers, can easily change the direction or level of the cable ladder span. These solutions require minimal space.

We are cable tray suppliers. If you are interested in our products, please feel free to contact us.

Introduction to FRP Piping

The complete form of FRP is fiberglass reinforced plastic, which is a composite material composed of a fiber-reinforced polymer matrix. Therefore, FRP pipes are made of FRP materials through contact molding or fiber winding. Various types of resins, such as thermosetting polyester, epoxy, phenolic resin, etc., are used to obtain the final product with specific FRP pipe properties. As a corrosion-resistant metal pipe substitute, FRP piping system has been widely used worldwide. By choosing FRP as the pipe material, the need for lining, external coating and cathodic protection can be easily eliminated.

Application of fiberglass reinforced plastic pipe

Due to the high durability, corrosion resistance and medium strength of FRP pipes, its use is increasing day by day. FRP piping systems are used in different industries, such as:

Drinking water and seawater desalination industry

Chemical, petrochemical, oil and gas industries.

Pipes and exhaust pipes

Irrigation and sanitation services

Water distribution and delivery

Mud pipeline

Power plants, etc.

Performance of FRP pipe

The main performance of FRP pipe is to make it an ideal choice for various industries in the world.

Excellent corrosion resistance

Excellent strength-to-weight ratio. It is worth noting that the strength-to-weight ratio of FRP pipes is higher than that of steel or other metal pipes.

Light weight, easy to handle and transport.

Dimensional stability

Degradable

Low friction coefficient (>25% better than steel), ensuring good flow characteristics.

Good abrasion resistance

Suitable for ground and underground pipelines

Resistance to biological attacks such as bacteria

Non-conductive

Low maintenance cost

FRP pipe connection

Since the length of the FRP pipe is restricted by transportation and handling, it needs to be connected. At the same time, various FRP pipe fittings need to be connected as required. The connection system of the FRP pipe shall ensure that no leakage occurs under the predetermined use conditions under the working pressure.

FRP pipe fittings

Various FRP pipe fittings are available to meet the needs of pipeline layout. Common glass steel pipe parts are

Long radius, short radius FRP elbow

Tee connection (equal tee and reducing tee)

FRP pipe flange

Steel back flange

Flange elbow

Smooth reducing elbow

Special bending radius

Horizontal connection

Cross connect

Wye Connection

Reducer (eccentric and concentric)

Flange reducing agent

FRP pipe specifications

When ordering FRP pipes, the following information must be provided to the supplier:

Pipe diameter

The design and working temperature of the applied fluid.

Design, operation, surge, vacuum, test pressure.

Live load of buried pipelines.

Maximum/minimum buried depth and trench width.

Details of soil properties and trench preparation.

Disadvantages of FRP pipes

The main disadvantage of FRP piping system is

It is not recommended to use FRP pipes to transport fluids whose temperature exceeds 100°C

The use of pigments, dyes, UV stabilizers, fillers, etc. in the resin system can reduce the slight degradation of the resin by ultraviolet light.

Solution of corrosion-resistant pickling equipment during production of refined quartz sand

The refined quartz sand ore used in advanced glass, glass products, refractories, smelting stones, precision casting, grinding wheel grinding materials and other industries is produced by chemical purification of the original quartz sand ore. It is white or crystalline in appearance.

The pickling process is characterized by quartz insoluble in acid, while other impurities and minerals can be dissolved by acid. The process can produce high purity quartz sand by effectively reducing the impurity content in quartz sand.

General steps of quartz sand pickling :

1) preparation of pickling solution for quartz sand pickling.

2) add quartz sand to pickling liquid to ensure that the acid is covered with quartz sand.

3) quartz sand immersed in acid for a certain time, according to quartz sand yellow skin increase or decrease immersion time. Enterprises with heating equipment, can use heating equipment, can reduce immersion time.

4) recovery of acid and deacidification.

5) dry the quartz sand. After the quartz sand is deacidified, the water should be drained out, and then the quartz sand will be dried in the drying equipment.

6) screening, color selection and packaging, etc.

The glass fiber reinforced plastic conical acid washing tank produced by Hebei Yongchang Composite Material Technology Co., Ltd. has high quality acid resistance, high quality alkali resistance and high quality high temperature resistance. It is widely used in the production of pickled quartz sand. FRP acid storage tank has higher strength, better temperature resistance and acid resistance than the reinforced polypropylene storage tank. The lining is made by adding high wear-resistant material to the resin. The strength and service life are guaranteed. Usually the specifications are 5 tons, 10 tons, 20 tons, 30 tons, and 40 tons.

We are acid storage tank manufacturer. Please feel free to contact us if you are interested in our products.

Use the correct reinforcing fiber in FRP

Like all composite materials, FRP has its unique characteristics. For example, fiber-reinforced materials increase the elasticity and strength of the matrix. Although the matrix is tough, it is still relatively weak. This combination creates a tougher material that is also more durable. This allows it to be converted into a variety of complex structural shapes and platforms or plates to meet all applications.

Fiber-reinforced plastics are incredibly strong, extremely durable, and super resistant to impact and denting. They can also adapt to the harshest natural climates and environments, especially corrosive environments. In fact, compared with metals such as steel or aluminum, FRP has a higher strength-to-weight ratio. This means that it can be as strong as steel, but the weight is only a small part of steel.

Of course, glass is currently the most commonly used fiber-reinforced material. It is usually combined with polyester or polyurethane resin-this is called glass fiber. This is a very common and well-known combination, and the name fiberglass was created specifically for this combination.

The reason why Glass is so popular is that it can be easily applied to a variety of applications. It allows extremely special arrangements of fibers to suit the unique part design. This makes the product have the best strength, elasticity, and resistance to any fiber deformation. In addition, it has strong resistance to extreme heat or cold.

Structural advantages of fiber reinforced plastics

Fiber-reinforced plastic is a very advantageous building material, with both physical and decorative benefits. Therefore, once many industries realize the long-term financial savings, they will turn to FRP products.

Because fiber-reinforced plastics are stronger than other materials, fiber-reinforced plastics have become a material for manufacturing for the first time. Common polymers, thermoplastics, and even metals such as aluminum and steel cannot be compared. FRP products provide the same strength, but also improve elasticity, durability and flexibility. It has also done this, and its weight is only a small part of its traditional counterparts. In addition to these benefits, the amount of elasticity and strength can even be adjusted as needed. This makes FRP a highly adaptable material that can be easily used in many different applications in many industries.

In terms of shape and complexity, FRP can be combined with several geometric shapes to make huge complex designs.

As mentioned earlier, FRP also has special resistance to several factors, including shock, extreme temperature, corrosion, and more.

The aesthetic benefits of fiber reinforced plastics

In addition to the durability and exceptional longevity of FRP materials, they can also be made to be aesthetically pleasing. Since FRP hardly shrinks during the molding process, it will produce consistent results during the production process.

We have fiberglass reinforced plastic pipe. And we are frp pipe suppliers. Please feel free to contact us if you are interested in our products.

Installation Instructions for FRP Tank(2)

6.3 After the container is filled with water, keep the horizontal tank for 24h and the vertical tank for 40h to check whether there is leakage.

6.4 The flat-bottom container is filled with water after the fine sand pad at the bottom. After the test is completed, the anchor bolt hole is poured, the fine sand filler sand retaining groove and the asphalt sealing groove are filled.

7. Installation precautions

7.1 Pad sand at the bottom of vertical flat bottom container

Full contact with sand at the bottom of vertical flat bottom container is the key factor to ensure safe use, otherwise, it is easy to cause damage at the bottom corner and leakage.

7.2 Process pipe connection

The process pipe connected with the container should be installed with a flange before the noose, to prevent the stress concentration on the container interface flange, causing damage.

(1) To avoid stress concentration after tightening bolts. The tightening force of bolts should be symmetrical and uniform.

(2) Connection with vibration equipment

When the container is connected with other vibrating equipment (such as between the inlet flange and the pump), the flexible connection should be used to avoid long-term vibration and damage to the FRP container.

(3) Connections to large equipment

When the container is connected with other large equipment or when the large container is connected with other equipment, flexible connection should be used to prevent the sinking of the equipment or the container foundation from causing the damage of the interface flange.

(4) Connection of heavy fittings

Valves and other heavy fittings installed on containers shall be supported separately.

8. Instructions and precautions for container use

8.1 Normal pressure capacity

No pressure or negative pressure should be pumped. Air holes should be opened in the process of adding liquid or draining liquid, and should not be added or drained in a closed state.

8.2 The conditions of use specified in the Contract shall not be exceeded

The container is specially designed according to the use conditions stipulated in the contract. Without the permission of the technical department of the supplier, the concentration and temperature of the storage medium should not be changed at will, let alone the type of the storage medium.

8.3 Special accessories should not be installed at will

Unless specifically required in the contract, large accessories, such as agitators, special valves or vibration equipment, should not be installed. If these accessories are actually needed, they should be indicated in the contract to make special design to ensure safety in use.

8.4 Should not be hit or scratched by hard objects

When entering the container for cleaning and maintenance, the operator should wear soft-soled shoes. When using a ladder, all the points in contact with the container should be covered with a quality pad to prevent scratching the surface. When working around the container, prevent the collision of the container with tools, scaffolding and other hard objects

8.5 Keep away from fire

Under normal circumstances, FRP products should not be near the source of fire.

8.6 Maintenance of containers

Fiberglass containers (especially the upper head) exposed to the sun for a number of years, the surface of the fiber exposed phenomenon (underground or indoor such problems do not exist), the application of resin or paint to maintain the method to extend the life of the.

8.7 The user shall be responsible for the quality problems arising from the installation and use of the products not in accordance with the requirements.

We are FRP Tank Manufacturers. If you are interested in our products, please feel free to contact us.

Installation Instructions for FRP Tank(1)

FRP Tank Suppliers will share this article with you.

1.Sand mat

Spread a layer of building sand on the concrete foundation, (sand should be screened, rice sand should be used), sand should not contain more than 5mm of the gravel sand layer should be thick and thin in the center, about 15mm in the middle, about 5mm in the periphery, uniform transition. The maximum cushion is not more than 20mm, and all parts of the bottom of the container should be in contact with the sand layer. In order to ensure that the transition is uniform and flat, the side of the plate can be scraped, a 15mm nail is nailed at the end of the plate, and a 5mm nail is nailed at the other end, and then the center of the foundation is the center of the circle, and the radius of the tank is the radius of the circle.

2.Fall tank

According to the lifting requirements, the container should be carefully placed on the sand layer, and the hook should not be removed first after the tank is dropped, so that the container can be lifted repeatedly before the sand.

3.Processing

From the manhole into the container, by stepping and percussion method to check whether the various parts of the pad sign, remember the inconsistent parts, and predict the container bottom and sand layer gap size, the container will be lifted again, level off the sand layer, so repeatedly, until the requirements are met.

4.Pour anchor bolts

For containers with anchor bolts, install anchor bolts on empty containers, water fixed anchor bolts, and water slurry should be level with the foundation.

Nuts cannot be tightened to prevent anchor bolts from being stressed when full water test is done later

For the container with anchor bolts, if the anchor ring is detachable, a layer of 4mm ~6mm thick rubber plate should be padded between the container wall and the anchor. It should be ensured that the anchor ring is completely consistent with the rubber plate and the rubber plate and the container wall.

5.Make sand retaining groove

In order to prevent the fine sand around the bottom of the container from being washed away by rain or overflow, the sand retaining groove should be built or poured according to the requirements. After the groove solidifies, and the container is full of water and tested for leakage, the groove is filled with fine sand and rammed, and the upper mouth of the sand retaining groove is closed by pouring with asphalt or asphalt mortar to prevent the water and sand loss in the groove.

6.Water filling test

6.1 During the whole process of water filling and drainage, the vent hole above the container should be opened to prevent accidental pressure or negative pressure pumping of the container.

6.2 The drain valve, manhole and flange are installed on the blind plate, and the water pump is used to fill the container. In the process of filling the water, the noise of choking may be emitted, which is a normal phenomenon, as long as the FRP tank is not damaged in transportation and does not affect the safety of use.

What Is FRP Storage Tank

The FRP storage tank is currently the leading industry standard sealing device on the market. Due to its lightweight, robust and feasible glass fiber design, fiber reinforced plastic tanks provide safe storage without the risk of corrosion or bacterial contamination.

Advantages of FRP storage tank:

(1) High strength

The density is between 1.5~2.0, only 1/4~1/5 of carbon steel, but the tensile strength is close to or even higher than that of carbon steel

(2) Good corrosion resistance

(3) Good electrical performance

(4) Environmental safety

(5) Light weight-easy to carry

(6) Smooth inner surface-lower sludge formation, lower cleaning cost

It is an excellent insulating material for manufacturing insulators.

Application of fiberglass storage tank

Storage media: inorganic acids, organic acids, bases and hydroxides, elements, gases and other inorganic compounds, alcohols, aldehydes, ketones, ethers, esters, hydrocarbons and petroleum products, halogen-containing organic compounds and Other organic compounds and other media.

Types of fiberglass tanks

(1) Vertical FRP tank

(2) Horizontal FRP tank

(3) Double-layer FRP storage tank