Ever wondered what goes into making a reliable ISI certified conduit pipe before it reaches your project site?
At New Adarsh Industries (Regd.), every Gupta conduit pipe is manufactured through a controlled production process covering raw material inspection, ERW welding, sizing, threading, galvanising, quality testing, packing and dispatch.
With 55+ years of manufacturing experience since 1970 and an annual production capacity of 3500+ metric tons, our manufacturing facility in Dinanagar, Punjab combines modern machinery, quality-control systems and an experienced workforce to produce consistent conduit pipe solutions for electrical installations.
Our Gupta conduit pipes are manufactured to comply with IS:9537 (Part-II), 1981 and are available in sizes from 20 mm to 50 mm.
Here is a closer look at the 8-step manufacturing process.
Step 1: Raw Material Inspection
The manufacturing process starts with the inspection of raw steel material.
Before production begins, the incoming material is checked against defined quality requirements. Material consistency is important because the quality of the steel directly influences the strength, dimensional accuracy and overall performance of the finished conduit pipe.
Proper raw material inspection helps identify unsuitable material before it enters the production line.
Key considerations include:
- Material quality and consistency
- Thickness requirements
- Surface condition
- Dimensional suitability
- Production specifications
Starting with suitable raw material creates the foundation for producing reliable steel conduit pipes.
Step 2: E.R.W. Welding
After raw material inspection, the steel strip moves into the pipe-forming and Electric Resistance Welding (E.R.W.) process.
The strip is gradually formed into a tubular shape and the edges are joined using a high-frequency induction welding system.
ERW welding provides a controlled and consistent welded joint and is an important part of the manufacturing process for steel conduit pipes.
Compared with older manual gas-welding methods, modern automated ERW production allows better process consistency and helps maintain uniformity throughout production.
The welding stage is particularly important because the welded area needs to withstand the mechanical demands associated with conduit handling, installation and service.
Step 3: Sizing & Straightening
Once the pipe has been welded, it passes through the sizing and straightening stage.
The pipe is processed to achieve the required dimensions and a straight, uniform profile.
Accurate sizing is important for electrical conduit because pipes need to work properly with fittings, couplers and other accessories during installation.
Consistent dimensions also help electrical contractors achieve smoother installation across large projects.
Gupta conduit pipes are available in commonly required nominal sizes including:
- 20 mm
- 25 mm
- 32 mm
- 40 mm
- 50 mm
The exact size required depends on the cable arrangement, installation method and project specification.
Step 4: Threading
Threading is another important stage in the manufacturing of steel conduit pipes.
Gupta conduit pipes are threaded using dedicated threading equipment designed to provide consistent and accurate threads.
Proper threading helps pipes connect effectively with compatible fittings and accessories during installation.
Accurate threads can also reduce installation difficulties, particularly on commercial, industrial and infrastructure projects where large quantities of conduit pipes may be installed.
Thread quality is therefore checked as part of the overall quality-control process.
Step 5: Galvanising for GI Conduit Pipes
For Hot Dipped Galvanised Conduit Pipes, the manufacturing process includes a zinc-coating stage.
The galvanising process provides a protective zinc layer over the steel surface, helping improve resistance against corrosion.
Both internal and external surfaces can be protected through the galvanising process, making GI conduit pipes suitable for applications where enhanced corrosion protection is required.
GI conduit pipes can be considered for environments such as:
- Outdoor electrical installations
- Humid areas
- Industrial environments
- Infrastructure projects
- Locations with increased exposure to moisture
The choice between GI and other conduit types should always be based on the installation environment and project requirements.
Step 6: Quality Testing & Inspection
Quality control is a critical part of conduit pipe manufacturing.
Before finished products are approved for dispatch, appropriate inspections and tests are carried out to assess their physical, mechanical and dimensional characteristics.
Important checks include:
Bend Test
The bend test evaluates the conduit pipe's ability to withstand bending under specified conditions without unacceptable damage.
Flattening Test
The flattening test assesses the pipe's resistance to deformation under specified testing conditions.
Compression Test
The compression test helps evaluate the conduit pipe's ability to withstand specified compressive forces.
Thread Inspection
Threads are checked for accuracy and consistency so that compatible fittings and accessories can be properly connected.
Dimensional Inspection
Relevant dimensions such as pipe diameter, wall thickness and length are checked to maintain production consistency.
Surface & Coating Inspection
For coated products, the surface and coating are inspected to help ensure appropriate finish and protection.
A structured quality-control system helps identify potential manufacturing issues before products are packed and dispatched to customers.
Step 7: Automatic Threading & Finishing
Following the main quality checks, pipes undergo finishing operations, including automated threading where applicable.
Modern automated machinery helps maintain consistency across production batches.
The finishing stage ensures that the pipes are prepared for packaging and eventual installation while maintaining the required dimensional and surface characteristics.
For large projects, this consistency is especially important because hundreds or thousands of conduit pipes may be required.
Step 8: Packing & Dispatch
The final stage is packing and dispatch.
Finished conduit pipes are properly grouped, packed and moved into the dispatch process after completing the required production and quality checks.
Efficient packing helps protect products during handling and transportation.
New Adarsh Industries supports bulk requirements for:
- Electrical contractors
- Builders
- MEP teams
- EPC companies
- Dealers
- Distributors
- Infrastructure companies
- Project procurement teams
The company supplies conduit pipes across Punjab and Pan India, supporting both regular procurement and large project requirements.
Hot Dipped Galvanised vs Black Stove Enamelled Conduits
Gupta steel conduit pipes are available with different protective finishes depending on application requirements.
Hot Dipped Galvanised Conduits
These pipes feature a zinc coating designed to provide enhanced corrosion protection.
They can be considered for:
- Outdoor applications
- Humid environments
- Industrial installations
- Infrastructure projects
- Applications requiring additional corrosion protection
Black Stove Enamelled Conduits
Black stove enamelled conduits feature a black enamel coating on the internal and external surfaces.
They offer a smooth finish and can be suitable for appropriate indoor electrical installations where the environmental conditions do not require galvanised protection.
The correct option should always be selected according to the installation environment and project specification.
Where Are Gupta Conduit Pipes Used?
Gupta conduit pipes are designed for a wide range of electrical installation requirements.
Applications can include:
- Surface electrical installations
- Concealed wiring
- Wall and ceiling wiring
- Commercial buildings
- Industrial plants
- Infrastructure projects
- Data and telecom installations
- Solar installations
- Fire alarm and security systems
- HVAC and electrical control wiring
Different applications may require different conduit types, sizes and protective finishes.
Why Manufacturing Quality Matters
A conduit pipe is more than a protective tube for electrical wiring. Its dimensional consistency, mechanical properties, surface finish and protective coating can all influence installation performance.
Poor-quality or inconsistent conduit pipes can potentially result in:
- Difficult wire pulling
- Installation delays
- Damaged pipe sections
- Poor fitting connections
- Increased material wastage
- Additional replacement costs
This is why choosing an experienced conduit pipe manufacturer with a controlled production and quality-testing process is important, particularly for large construction projects.
Why Choose Gupta Conduit Pipes from New Adarsh Industries?
New Adarsh Industries (Regd.) has been associated with conduit pipe manufacturing since 1970, giving the company more than 55 years of industry experience.
The company manufactures conduit solutions under the trusted Gupta and N.A.I. brands.
Key strengths include:
- 55+ years of manufacturing experience
- 3500+ MT annual production capacity
- Modern manufacturing machinery
- Controlled ERW production
- Quality testing and inspection
- GI and black stove enamelled conduit options
- Sizes from 20 mm to 50 mm
- ISI-marked conduit products
- Bulk and project supply capability
- Supply across Punjab and Pan India
The focus is on delivering consistent conduit pipe solutions for electrical contractors, builders, EPC companies, MEP teams, dealers and project procurement teams.
FAQs About Gupta Conduit Pipe Manufacturing
How are Gupta conduit pipes manufactured?
Gupta conduit pipes are manufactured through a controlled process that includes raw material inspection, ERW welding, sizing and straightening, threading, galvanising where applicable, quality testing, finishing, packing and dispatch.
What welding process is used for Gupta conduit pipes?
Gupta steel conduit pipes are manufactured using the E.R.W. (Electric Resistance Welding) process with a high-frequency induction welding system.
What sizes are Gupta conduit pipes available in?
Gupta conduit pipes are available in commonly required nominal sizes of 20 mm, 25 mm, 32 mm, 40 mm and 50 mm.
Are Gupta conduit pipes ISI marked?
Yes. Gupta conduit pipes are manufactured to comply with IS:9537 (Part-II), 1981 and carry the applicable ISI marking.
What is the difference between GI and black stove enamelled conduit pipes?
GI conduit pipes have a zinc coating that provides enhanced corrosion protection, while black stove enamelled conduit pipes have a protective enamel finish. The appropriate type depends on the installation environment and project requirements.
Where can GI conduit pipes be used?
GI conduit pipes can be considered for outdoor, humid, industrial and other applications where enhanced corrosion protection is required, subject to project specifications.
What quality tests are performed on conduit pipes?
Relevant quality checks can include bend testing, flattening testing, compression testing, thread inspection, dimensional inspection and surface/coating checks, depending on the product and applicable requirements.
Get Gupta ISI Conduit Pipes for Your Project
Looking for a reliable conduit pipe manufacturer in Punjab for your next electrical, commercial, industrial or infrastructure project?
New Adarsh Industries (Regd.) manufactures Gupta and N.A.I. conduit pipes with a focus on quality, dimensional consistency, durability and dependable performance.
Whether you need MS conduit pipes, GI conduit pipes or other conduit solutions for regular procurement or a large project, share your required size, quantity and project specifications with our team.
With 55+ years of manufacturing experience, modern production facilities and an annual capacity of 3500+ MT, New Adarsh Industries supports bulk and project requirements across Punjab and Pan India.
???? +91 98786-20339
✉️ info@newadarsh.com
Enquire today for Gupta conduit pipe requirements, bulk supply and project procurement.