Perks of using Cast Iron for Drainage Covers

Recessed Chamber Cover

Cast-Iron Perks

WCS is a crucial partner for designers of wastewater and rainwater drainage systems since it is the top manufacturer and supplier of cast iron drainage covers India applications. Cast iron products made by us are secure, simple to install, and perfectly suited to project managers’ needs. To accommodate all building kinds and criteria, we provide a variety of ranges.

Based On Natural Materials

Products constructed of cast iron for drainage systems are an alloy of silicon, carbon, and iron, which are all-natural elements. Cast iron is a natural product made entirely from recycled raw materials, including cast iron and scrap iron that has undergone a second melting process to improve their properties.

Cast iron that is made by WCS combines the conventional durability of iron with exceptional technological and mechanical qualities that hold up well over time and in all conditions. Its durability prevents breaks and damaged materials, and the nature and density of the material provide it with thermal and acoustic features that ensure user safety and comfort.

The Principles of Cast Iron

  • Mechanical couplings that can be quickly installed to industry standards without glue or welding can reduce installation time and labor costs.
  • There are no expansion joints, which simplifies the design and reduces the need for costly heat limiters.
  • Due to its fire behavior, there is no systematic fire protection or fire collar.
  • Due to its acoustic characteristics, acoustic insulation requires less protection, which saves money on plasterboard while maintaining performance.
  • In underground applications where ground disturbance or additional loading is probable in recessed manhole cover India, less embedment is required than with other materials.

Durability

Cast iron’s exceptional mechanical qualities and operating safety margin have been shown to give it a 70-year lifespan.

Even under high pressure, cast iron systems can endure cleaning processes. Additionally, they are unaffected by conventional enzymes and chemicals used to remove blockages:

  • To retain these properties, WCS conducts ongoing research on its coatings.
  • Cast iron drainage covers in India are more resistant to damage than other drainage materials in exposed areas of the drainage system, such as basement parking lots. Before installation, it is also less susceptible to cracks and breakage.
  • Underground cast iron is more resistant to ground movement and is less prone to malfunction under adverse circumstances.

Maintenance is Less

Our networks have a limited capacity for maintenance activities.

Cast iron drainage is the preferred option for hidden, built-in, or otherwise inaccessible systems when repair or maintenance would significantly inconvenience the residents throughout the building’s lifespan under normal circumstances.

When necessary, mechanical couplings that are removable make repairs simpler and less expensive without requiring stack cutting. A large selection of access components makes it simple to perform maintenance at key locations in the stack to clear any potential blockages.

So, contact our top experts when you need them.

BIC Ductile Iron’s Benefits Over Other Metals When Casting Manhole Covers

 

Manholes are becoming increasingly prevalent as urbanization progresses. It is visible everywhere, including on sidewalks, streets, and the first floor of apartments. It has subsurface drainage and urban power infrastructure. It provides us with countless advantages, but it also exposes us to a lot of potential safety dangers.

The first issue that needs to be taken into account is how much weight manhole covers can support. A manhole cover’s purpose is to secure the road. For people walking or driving a car, it is like walking in the dark without any light if it cannot support a decent amount of weight. It will be risky.

Cast iron, ductile iron, and composite manhole covers are examples of typical manhole covers. Next, we contrast the benefits of our BIC’s ductile iron manhole cover in India.

Our Ductile Iron’s Benefits over Other Metals

Unbreakable but Flexible

Our Ductile iron, which is created from substances like silicon, phosphorus, magnesium, sulfur, and others, is used to reinforce iron coverings. It is therefore a very strong substance. Another benefit of our ductile iron is that it can be bent without breaking.

Compression Power

When discussing strength, the metal’s compressive strength should be taken into account. In other terms, it is the amount of pressure a metal can tolerate or sustain before changing shape. Our ductile is the best alternative to other metals used to make manhole covers because it has a higher compressive strength.

Corrosion-resistant

A larger danger of damage exists because manholes are exposed to the whims of nature, including hail, frost, rain, sun, and other factors. Iron can be made corrosion-resistant by polishing it or coating it with a fresh layer of powder. Our ductile iron is suggested for the production of manhole covers since, for example, steel has higher corrosion effects.

Expenditure

Cost-effectiveness is the best factor to take into account when manufacturing manholes with a ductile iron manhole cover in India. Due to its lower price when compared to other metals, ductile iron is preferred in the manufacturing sector. There is no question that this metal performs better than the others.

Features of a Manhole Cover made of Our Ductile Iron

A Powerful

Our Ductile iron has a yield strength of more than 300MPa and tensile strength of more than 420Mpa. It is more than three times as much as gray iron, just like low-carbon steel.

Strong Tenacity

The impact value is 10 times of recessed manhole cover greater than gray iron and comparable to carbon steel.

High Plasticity

The elongation rate is higher than 7%, which is comparable to materials made of high-carbon steel and gray iron.

Get the top cast iron manhole cover in India from us with an accurate budget. Check our website.

Benefits of Manhole Covers made with Ductile Iron

 

A cast iron manhole cover has features and functions, such as a gas cap. Cast iron comes in a variety of forms, including ductile cast iron, gray cast iron, and white cast iron. Cast iron and gray cast iron are most frequently used to manufacture manhole covers because of their affordable pricing and high quality. The advantages of both a ductile cast iron manhole cover in India and manhole covers are included in the gas manhole cover.

Cast-iron Manhole Covers Uses and Roles

A device placed on the manhole’s surface that fills the open space ensures the safety of pedestrians and cars. Additionally, it guards against waste and drains odor.

Manhole coverings are often composed of cast iron. However, the periodic opening of manhole covers must be done to maintain the pipes. A ductile cast iron manhole cover in India is very heavy for regular employees. As a result of the study, ductile iron is preferred over cast iron because it can withstand the same traffic loads while having a lower self-weight. The typical cast iron manhole covers are also more prone to breakage and require more maintenance since ductile iron is less brittle than cast iron.

However, there are several drawbacks to ductile iron manhole covers. For example, because of their relatively low self-weight, passing cars over these manhole covers would cause the covers to jiggle and make obnoxious noises. Instead of making ductile iron access covers in India heavier on their own, which would also compromise worker safety during routine maintenance, a design may be used to link the covers to the manhole frames, which would keep them firmly in place.

Use of Our Ductile Cast Iron Manhole Covers and Frames Has Benefits

Selecting our ductile iron for your manhole covers and frames to have numerous advantages. They consist of:

  • They are really powerful.
  • They have a pleasing appearance.
  • They are excellent for heavy traffic at fast speeds because they can handle excessive traffic and loads.
  • Low risk of failure because of great strength
  • It is possible to create lightweight castings that are incredibly affordable.
  • They are quite manageable.

The items for pit manholes should be created using the standard procedure to assure their quality and effectiveness when used. Our business, WCS, has been in business for a long time and has a team of talented employees who can integrate contemporary technologies into a professional workflow to provide the top products to suit your demands.

Throughout our many years of operation in the manhole cover and associated product industries, we have consistently gotten the best reviews from clients both domestically and internationally. Please contact cast iron manufacturer in USA for the best assistance if you require high-quality cast iron manhole covers.

Applications of Recessed Covers for Drains in India

Ductile Iron Chamber Cover

Manholes are the most frequently utilized subterranean structures for utility maintenance that allow access to installed pipelines for cleaning and inspection. It is an essential part of the sanitary system and water supply, the fundamental subsurface utilities. On the streets and paved walks, manholes are common. Manhole covers are the lids that cover open manholes to protect people from tripping over them or from illegal individuals entering. Even though we frequently pass by these manhole covers, we rarely stop to consider their significance. Indian manufacturers of manhole covers like WCS are well-known throughout the world for their high-caliber goods. A survey found that the majority of manhole covers in the US are imported from India. The government’s Make in India strategy has helped manufacturers grow to new heights in recessed drain covers in India. Our manhole coverings have provided a platform for artists to display their work in some nations, like Japan, where they are ubiquitously painted in vibrant hues.

Types of Manhole Covers

Manhole covers are detachable lids used to cover and seal manholes. Manhole covers used to be constructed out of concrete, cast iron, or even a combination of the two materials. Due to certain characteristics like durability, affordability, and weight enough to remain in place, certain materials are recommended. Technology, however, has given rise to several top substitute manhole cover materials, including composite, fiberglass, and plastic.

Ductile Iron, Recessed and Solid Top.

RECESSED

For aesthetically pleasing finishing in pedestrian paths, these kinds of manhole covers are erected in recessed regions ideal for laying block paving, cement, and a layer of screed. For interior manhole covers in hospitals, cast iron manufacturing facilities, residential areas for apartments, and household gardens, it is the ideal choice. FACTA rules apply to the loading classes for recessed drain covers in India.

Applications

Manholes will offer a secure route to the sewage conduits, which must occasionally be opened for maintenance and emergencies. By keeping water from building up, recessed chamber covers shield the roads from flooding during the rainy season. It fulfills a vital function because, during monsoons, the water that has accumulated would make the roads slick, making it difficult for people to walk or drive. Our manhole covers prevent unintentional falls into the holes by people and animals. They stop the sewage tunnels from emitting offensive odors and dangerous gases that may seriously endanger people’s lives. Our drain covers make sure their goods are sturdy, difficult to steal, and reasonably priced for customers.

Connect with us for the best manhole cover price range, availability, and more. Find all the details and models on our website and feel free to inquire.

Features and Properties of Access Covers of Ductile Iron

Individual needs can be satisfied with a custom cable protection combination thanks to the wide selection of ductile iron access covers that complement our access chamber systems.

Design options for Ductile Iron coverings can be customized to meet specific client requirements. Additionally, a number of locking mechanisms can be added to covers.

How our access does cover function? To safeguard the infrastructure networks underneath, Bengal Iron Corporation access covers are utilized in conjunction with access chamber systems.

Our Ductile Covers are produced employing a locking, sequential cover opening method and are indexed to assure proper fitment.

Strong Iron Access Cover Features and Properties

Security

Our Access chamber covers have security features that can be added using a convenient feature such as a spring bar, captive hinge, factory-installed security bolts, and screws, or by providing the ability for a locking kit to be retrofitted.

Cover Access for Safety

The risk of injury from the static lifting of ironwork has been reduced by the introduction of a wide variety of hinged access covers and gully grates.

Durability

Due to their lengthy lifespans, ductile iron access covers save the end user money on replacement expenses. The sitting contact regions, frame thickness, and controlled manufacturing tolerances all work to provide optimal performance.

Design for Quality Assurance

British Standards Institute independent testing and certification of Ductile Iron Covers under the BS EN ISO 9001 Quality System

Rough Performance

With less sophisticated material, we design and produce a wide variety of novel features while still achieving considerable weight savings.

Locking Safety

Locking lids on the frame and cover assist in preventing tragedies from occurring during routine labor. For sewage pipeline inspection, the covers lock open at a 130o angle and lock at a 90o angle.

Ergonomic Flexibility

Sick of stooping to move those cumber some covers? Our top cast iron drainage covers are made to be easily opened with a light pull while fully standing, by simply inserting a crowbar or other standard waterworks instrument at a 35-degree angle.

Easy-Access Hinge

Instead of lifting cumbersome ductile iron coverings, just swing the manhole cover up and out of the way. By integrating heavy-duty hinges with the rings and covers, you can maintain the same level of pressure and cut your workers’ compensation claims in half.

Resilient Ductile Iron

Our complete cover system is made of the strongest, most resilient ductile iron, minimizing maintenance and extending lifespan at half the weight and four times the strength. This includes the traditional key opening and the sturdy, long-lasting frame.

Connect with us and get your desired ductile iron access covers delivered anywhere in India. Follow our official page for more info.

Benefits of using Ductile Iron while Covering the Manhole

It is significant to mention that understanding metal strengths is necessary. Ductile iron is the only choice because it has so many benefits over other materials. If you’re interested in purchasing the best cast iron manhole cover, you should learn as much as you can about the producers of these covers so that you can choose the product that best satisfies your requirements. Here is a list of top advantages you can take note of when using the same from Bengal Iron Corporation:

Unbreakable but Flexible

This compound, which is produced from substances including carbon, phosphorus, silicon, magnesium, and sulfur, is thought to increase the tensile strength of iron covers. Consequently, it is more durable than the competition in the field. In addition to this feature, the fact that our ductile irons may be bent readily without breaking attracts consumers to the metal.

Compression Power

It is crucial to remember that when discussing metals, the metal’s compressive strength is taken into account. The best way to define the phrase is as the amount of pressure that a metal can withstand before changing shape. In comparison to other comparable metals that are also used to build manhole covers, our ductile iron has a higher compressive strength. As a result, there are no better options than iron.

Unaffected by Corrosion

Manhole covers have a significant risk of destruction since they are exposed to weather conditions like rain, hail, frost, and sunlight. The iron, however, has no other options that could help the cause if it were given a fresh coat of powder or polish with our ductile iron manhole cover.

Cost-effectiveness

Cost-effectiveness is the most crucial aspect to take into account while building a manhole cover. Iron is a well-known material among users since it is less expensive than other metals. Although price is a consideration for buyers, there is still little doubt that this metal is among the best available, that you can be assured from us.

Resistant to Corrosion

Ductile iron performed well in the 90-day spray corrosion test, but the corrosion rate was only 0.25 times higher than that of pipelines and 0.1 times higher than that of gray cast iron pipes. Compared to gray cast iron pipes and regular steel pipes, the service life is twice as long.

Ductile cast iron manhole cover has more corrosion and oxidation resistance than steel in the majority of municipal applications, including those involving water, salt water, steam, etc. Our iron cover has superior vibration absorption capabilities than steel because of its spherical graphite microstructure.

Contact with us directly for your requirement and get the best ductile iron manhole cover in India.

Recessed Covers Information for Drains with BIC

In some surfaced areas, sunken drain covers or recessed tray covers are used to conceal the presence of inspection chambers, manholes, and access fittings.

As per BIC, Recessed drain covers are essential when it comes to the field of artistic, natural, or colored stone paving, especially as compared to the utilitarian covers typically used in modern construction, find out the brief from us here.

They consist of two parts: the tray that sits inside the frame that is installed above the manhole. To blend in with the surroundings, this is covered in paving.

There are different sizes available, usually on order, but 450x600x90mm is the standard size used on patios and domestic driveways. To manageable maintain the bulk of the paved tray, the larger covers typically use two or more separate trays inside one frame.

In general, the ones used in commercial projects or public spaces are made of a galvanized steel frame and a galvanized steel tray. The plastic frame can be used for those with light use, such as driveways in homes. Due to the increased usage of plastic trays for footways and driveways.

For foot traffic, only grade “A” covers are necessary. For driveways, however, an “AA” cover and a safe operating load of at least 1.5 tons are needed. When parking vans or large 4x4s in driveways, think about utilizing class B cover. In public spaces, heavier applications must have Class B, C, or D coverings.

Many of the sunken manhole covers and recessed covers for drains used in residential areas today are constructed of plastic, as has been noticed. This has various benefits, such as lighter weight and lower manufacturing costs. Additionally, there are now fewer reports of jammed trays. On the other hand, the existence of trays and frames that are prone to deformation irks certain contractors. This in turn has an impact on the installation’s final aesthetic appeal, with a Ductile Iron Manhole Cover.

The development of “Square to Round” recess tray covers has been made possible by the transition to plastic frames. These are designed to fit over a circular or round Access Chamber (AC) or Inspection Chamber and give a rectangular or square cover (IC).

Access covers and manholes are intended to blend in with the paving’s design by using recessed tray covers or recessed drain covers. They are hardly noticeable when professionally and correctly fitted. However, if they get into the wrong hands, they can be turned into harmful weapons.

After the final fastening, it is advised to generously coat the internal sides of the frame and the tray’s outer borders with a thick, non-setting lubricant, such as petroleum jelly, to prevent jamming. By doing this, the sand particles are kept out of the space between the tray and frame. Additionally, the jelly makes it simpler to remove the tray.

So, get your drain cover fitted with our best manufacturing firm and keep safe your life along with others.

Eye Screening Camp at BIC

BIC in partnership with Confederation of Indian Industries (CII) and Young Indians (Yi) Kolkata chapter conducted an eye screening camp for all staff and workers at our Howrah plant. As a manufacturer of ductile iron manhole covers and other castings, we wanted to help in little ways possible to improve the lives of our employees.

Eye Camp at Bengal Iron Corporation

A total of 150 people were screened and tested by experienced personnel from Carenetram. After eye screening the workers were provided with subsidised glasses at Rs. 100 only. They were also given the opportunity to get a cataract removal surgery done in the near future free of cost. 

In addition to this, blood sugar and blood pressure testing was also conducted. Lifestyle management solutions were provided to all workers to maintain a healthy blood sugar level.

Eye Camp at BIC

We are thankful to Yi Kolkata Chapter for providing us with this opportunity to impact and care for the lives of our employees who work so hard to manufacture world class cast iron and ductile iron manhole covers, hubless pipes & fittings, and other industrial castings.

Manhole Cover Load Guide

This article serves as an easy guide to selecting the right manhole covers based on load class for your design requirements. We have compiled this data using the codes IS 1726 for grey cast iron and EN 124-2 for ductile iron manhole covers and grates.

Grey Cast Iron Manhole Covers and Frames Guide

In India, the Grey Cast Iron Manhole Covers and Frame have been divided into 4 categories based on their usage as per IS 1726.

  1. LD-2.5: The Light Duty cover is capable of withstanding 2.5MT or 25kN of load. These are suitable for use within residential or institutional complexes or areas with pedestrians as well as only occasional Light Motor Vehicle Traffic. These covers also used as ‘Inspection Covers’.
  2. MD-10: The Medium Duty cover is capable of withstanding 10MT or 100kN of load. They are suitable for use in service lanes, on pavements for use under medium-duty vehicular traffic including car parking areas.
  3. HD-20: The Heavy Duty cover is capable of withstanding 20MT or 200kN of load. They are suitable for use in institutional and commercial areas, carriageways, city trunk roads, bus terminals, with heavy-duty vehicular traffic of wheel loads between 5 to 10 tonnes, like buses, trucks and parking areas and where the manhole chambers are located in-between the pavement and the middle of the road.
  4. EHD-35: The Extra Heavy Duty cover is capable of withstanding 35MT or 350kN of load. They are suitable for use on carriageways in commercial, industrial and port areas, near warehouses or godowns where frequent loading and unloading of trucks are trailers are common, with slow to fast moving vehicular traffic of the types having wheel loads up to 11.5 tonnes irrespective of the location of the manhole chambers.

Ductile Iron Manhole Covers and Grates Guide

As of the date of writing this article, the Bureau of Indian Standards does not have a separate code for Ductile Iron manhole covers. As a result, the most popular code used in India is the European EN124. Manhole covers and grates up to and including a clear opening of 1000 mm are divided into 6 load classes.

  1. A 15: Capable of withstanding 15kN or 1.5MT of load. They are suitable for areas which can only be used by pedestrians and pedal cyclists.
  2. B 125: Capable of withstanding 125kN or 12.5MT of load. They are ideal for pedestrian areas and comparable areas, car parks or car parking decks.
  3. C 250: Capable of withstanding 250kN or 25 MT of load. The area of kerbside channels of roads which, when measured from the kerb edge, extends a maximum of 0.5 m into the carriageway and a maximum of 0.2 m into the pedestrian area.
  4. D 400: Capable of withstanding 400kN or 40 MT of load. The carriageways of roads (including pedestrian streets), hard shoulders and parking areas, for all types of road vehicles.
  5. E 600: Capable of withstanding 600kN or 60 MT of load. Areas imposing high wheel loads, e.g. docks, aircraft pavements.
  6. F 900: Capable of withstanding 900kN or 90 MT of load. Suitable for areas imposing particularly high wheel loads, e.g. aircraft pavements.
ductile manhole

Smart Plumbing: Measurement of Noise in Cast Iron Pipes

In residential as well as commercial buildings noise is generated in piping systems. An important consideration for architects and engineers when designing these buildings is the noise levels contributed by sanitary drainage pipes. These considerations influence the materials of pipes used, their orientations, and even the type of false ceiling. As a premier supplier of cast iron pipes and fittings, we at BIC detail in this blog a concise version of the available literature.[i] It entails the process of how noise level tests were conducted and the consequent results obtained for cast iron pipes in comparison with other materials.

Methodology Used

The measurements were carried out in the acoustical laboratory of Peutz bv in Mook in the Netherlands.

The variables of interest examined in this study are as follows:

Material of drainage pipe
Construction orientation

The experiment was carried out at a flow rate of 3.0 l/s.

Materials and constructions

The following table lists the types of pipes used for the experiment.

Drainage Pipe

1. Type: Cast Iron
Mass: 8.5 kg/m
Inside Diameter: 103 mm
Outside Diameter: 110 mm

2. Type: U-PVC
Mass: 1.3 kg/m
Inside Diameter: 103 mm
Outside Diameter: 110 mm

3. Type: Polyethylene (PE)
Mass: 1.23 kg/m
Inside Diameter: 103 mm
Outside Diameter: 110 mm

Standard clamps and rubber inlays were used. The pipes were installed in three variations as shown in the diagram below:

An offset with two 45º bends.
Straight vertical
Straight horizontal

ci pipes noise reduction

Calculations

To quantify the measured noise levels in the given room, a standard sound pressure level Ln in dB(A) is calculated as follows:

noise plumbing formulaWhere:

Ln = sound pressure level (dB)

L0 = measured sound pressure level caused by water flow in the pipe (dB)

A = determined absorption area (m2 area of opening)

A0 = reference absorption area (10 m2 area of opening)

The result obtained is detailed in the following table:

Table: Sound pressure level Ln in dB(A) for three variants and pipe materials, flow 3.0 l/s

Pipe material Offset vertical (A) Straight Vertical (B) Horizontal pipe (C)
PE 67.5 61.0 64.5
PVC 64.5 57.5 61.0
Cast Iron Not Measured 51.0 50.5

 

It can be seen that the sound pressure level for the offset vertical with two 45° bends is higher than the straight vertical and horizontal pipe. BIC cast iron pipe has the lowest noise production with similar sound pressure levels for the straight vertical pipe and the horizontal pipe.

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[i] Measurement of the noise production in drainage pipes. W.G. van der Schee. https://www.irbnet.de/daten/iconda/CIB_DC25341.pdf

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