Thin Walled Flexible Quick Coupling Pipes are designed for quick and efficient fluid transfer. These pipes are extensively used in irrigation projects, temporary water supply schemes and fluid transfer systems in industries where flexibility, light weight and ease of installation are of prime importance. The thin walls of these pipes make them easy to handle and deploy in the field due to their extension flexibility.
BIS certification for the Thin Walled Flexible Quick Coupling Pipes according to IS 11722: 1986 tests the quality of pipes with respect to strength, dimensions, and performance of the pipes. Testing is conducted to verify the uniformity of wall thickness, compatibility with couplings, pressure bearing capabilities, and the flexibility of the pipe.
What is IS 11722: 1986
This is the Indian Standard for thin-walled flexible pipes used in quick coupling systems for efficient fluid transfer. It mentions the material strength, flexibility, dimensional accuracy and pressure handling to ensure safe and leak-free operation. As per the BIS (Bureau of Indian Standards), these pipes are:
- Evaluated for pressure resistance
- Tested for durability
- Verified for wall thickness
- Assessed for flexibility
Flexible Coupling Pipes BIS Approval Eligibility Criteria
BIS authorisation under IS 11722: 1986 is required for businesses involved in manufacturing, importing, or supplying Thin Gauge Flexible Pipe in India.
Applicable to:
- Manufacturers (India) - Must get BIS approval if the Quick Coupling Steel Pipes are covered under QCO.
- Foreign Manufacturers - Need certification to export the product to India.
- Importers/Brand Owners - Must ensure that the products are BIS-certified before sale.
- Sellers/Distributors - Should only sell certified Flexible Joint Pipes.
Testing and Inspection Requirements
For controlled fluid transfer and dependable pipe performance, the Bureau of Indian Standards outlines the minimum requirements under IS 11722: 1986. This certification ensures that manufacturers produce quick coupling pipes with proper dimensions, suitable materials, and reliable flexibility for efficient connection and long-term operational use. The BIS testing parameters and quality checks for the pipes are listed below:
| Test Group | What is Tested | Purpose |
|---|
| Dimension & Tolerance Test | Outside diameter, wall thickness, pipe dimensions, tolerances, length, and straightness | Ensures dimensional accuracy and proper fitment during installation |
| Workmanship & Finish Inspection | Surface quality, pipe finish, visible defects, and overall workmanship | Ensures proper manufacturing quality and defect-free pipe construction |
| Galvanizing Test | Quality and uniformity of galvanized coating on pipe surface | Ensures corrosion resistance and longer service life |
| Flattening Test | Pipe resistance against flattening under applied load | Verifies structural strength and deformation resistance |
| Tensile Strength Test | Tensile properties and mechanical strength of pipe material | Ensures the pipe can withstand operational stress and handling pressure |
| Hydraulic Pressure Test | Ability of pipes to withstand specified hydraulic pressure | Ensures pressure-handling capability and leak-free performance |
| Leakage Test | Leakage resistance of coupled pipes and joints | Ensures secure coupling and prevention of fluid leakage |
| Angularity of Joint Test | Angular movement and alignment performance of pipe joints | Ensures flexibility and proper joint functioning during operation |
| Coupler Inspection Test | Design, construction, and approval status of couplers | Ensures compatibility and secure pipe connection performance |
| Rubber Parts Verification Test | Quality of rubber components used in couplers as per IS 5382 | Ensures sealing efficiency and operational durability |
Thin Walled Flexible Pipes BIS License Application Process
The BIS Authorisation process ensures that the Flexible Steel Coupling Pipes meets the required standards for efficient operation. This process is set by the Bureau of Indian Standards (BIS) and includes the following steps:
- Online Registration: Manufacturers register on the BIS Manak portal by submitting company, factory, and product details. Foreign manufacturers must appoint an Authorized Indian Representative (AIR).
- Testing at BIS-Approved Laboratory: Product samples are tested in BIS-approved laboratories for dimensional accuracy, material conformity, weld and joint quality, galvanizing performance, tensile strength, flattening resistance, leakage and hydraulic pressure endurance.
- Application Submission: The application is submitted along with test reports, technical documents, and factory details. Foreign manufacturers must also submit AIR-related documents.
- Factory Inspection: Officials of BIS perform a detailed inspection of the manufacturing unit to verify the production process, safety measures, and quality control system.
- Grant of BIS License: In case of satisfactory fulfillment of all conditions, BIS grants the certification license under Scheme-I.
- Use of ISI Mark: On obtaining the license, the manufacturer is authorized to use the ISI Mark on the product along with a valid CM/L number, confirming that the product meets BIS standards.
BIS Licensing Document Requirements for IS 11722: 1986
| Document Category | Documents Required |
|---|
| Basic Details | GST Certificate, Email ID & Contact Number, Factory & Office Address, Rent Agreement / Lease Deed (if applicable),Partnership Deed (if applicable for partnership firms) |
| Manufacturing Details | List of Machinery, Process Flow Chart, Factory Layout Plan |
| Raw Material Details | List of Raw Materials, Supplier Details, Raw Material Invoices, Raw Material Test Certificates |
| Testing & Quality Control | List of Testing Equipment, Calibration Certificates, QC/Lab In-charge Appointment Letter & Qualification |
| Production Details | Annual Installed Capacity, Last Year Production Value |
| Product & Packaging Details | Quantity per Package, Nature of Packing, Product Printing / Marking Details |
| Management Details | Top Management Details, BIS Communication Contact Person |
| Brand & Certification Documents | Trademark / Brand Certificate, Consent Letter from BIS Recognized Laboratory |
| Additional Documents | Weekly Off Details, Hygiene Document (if applicable), Relaxation Letter (if applicable), Any Other Relevant Document |
| Foreign Manufacturer Requirement | Appointment of Authorized Indian Representative (AIR) for BIS coordination and compliance in India |
Foreign manufacturers are required to appoint an Authorized Indian Representative (AIR) in India. The representative is the local point of contact for the Bureau of Indian Standards (BIS) and is responsible for handling all regulatory, compliance, and communication requirements related to product certification in India.
Marking Requirements & License Validity
Marking Requirements
Upon getting the BIS license, the ISI mark should be permanently marked on Quick Coupling Steel Pipes. Apart from the ISI mark, other important details, including manufacturer's name and license number (CM/L), should be mentioned. This is a necessary step, as it guarantees that the product satisfies all the safety requirements. Other details are listed as follows:
| Requirement | Details |
|---|
| ISI Mark | Indicates that the product is BIS certified and conforms to standards |
| Standard Number | IS 11722: 1986 |
| CML Number | Certification Marks License (CML) number issued by BIS |
| Manufacturer Details | Name of manufacturer or registered trademark |
| Batch / Date | Batch number, heat number, or manufacturing date for traceability |
Note: Marking is typically applied using durable stamping, tagging, or permanent printing to ensure clear identification during handling, storage, and transportation, as per BIS marking requirements.
Validity of Flexible Coupling Pipes BIS License
| particulars | Details |
|---|
| Validity | Typically 1 to 2 years, depending on BIS approval conditions |
| Renewal | Must be renewed before expiry by submitting the application along with the prescribed fee and updated documents |
| Surveillane | Includes periodic factory inspections and market sample testing conducted by BIS |
| Compliance | Continuous following to standard and applicable Quality Control Orders (QCOs) is mandatory |
| Risk | Non-compliance or failed sample testing may lead to suspension or cancellation of the BIS license |
Fee Breakdown for Quick Coupling Pipes BIS Approval
The cost of BIS Approval for Industrial Quick Connect Pipe Systems includes charges for application, inspection, license, testing, and marking. These fees are paid to BIS as per Scheme I guidelines.
| Charge Type | Indian Manufacturers | Foreign Manufacturers |
|---|
| Application Fee | INR 1,000 | USD 15 |
| Audit Charges | INR 7,000 | USD 3,200 – 5,900 |
| License Fee | INR 1,000 | USD 15 |
| Marking Fee | As applicable | As applicable |
| Testing Charges | As applicable | As applicable |
| EVTL India Consultancy Fee | As per actual | As per actual |
Note:
- Application fee for foreign manufacturers is payable via SWIFT (SAARC countries may pay in INR with applicable GST).
- Audit charges for foreign manufacturers vary based on country/location.
- The marking fee is determined based on the product category and production volume (MSME benefits may apply).
- Testing charges are to be paid directly to BIS-recognised laboratories.
- Consultancy fees can vary depending on product type and factory location.
Conclusion
Fast coupling based fluid delivery systems will need flexible hoses in order to guarantee stability and convenient installation. Compliance with IS 11722: 1986 can allow achieving consistent flow performance and functionality of Thin Walled Flexible Quick Coupling Pipes in varying conditions. This will allow quick installations as well as reduce any downtimes during maintenance operations on the fluid distribution systems. The support offered by EVTL India helps streamline the certification process procedures. Assistance with preparing the necessary documents and arranging for testing and BIS application submissions will simplify compliance management for the manufacturer, eliminating concerns about the process.
