UPCOMING QCO ON TEXTILE GOODS BY MINISTRY OF TEXTILE
BIS ISI Certification for Injection Moulded PVC Socket Fittings – IS 7834 (Parts 1 to 8):1987
BIS ISI Certification for Injection Moulded PVC Socket Fittings is governed by Indian Standard IS 7834 (Parts 1 to 8):1987. This standard applies to PVC socket fittings manufactured by injection moulding and intended for solvent cement jointing with PVC pipes used for potable water supply applications.
To obtain BIS ISI certification and manufacture a standard quality product, it is mandatory that the fittings strictly comply with the relevant parts of IS 7834. Compliance ensures uniform dimensions, reliable jointing, pressure resistance, and long-term performance of water supply systems.
IS 7834 (Part 1): General Requirements specifies the basic requirements related to raw materials, manufacturing process, test methods, inspection, and marking of all types of injection moulded PVC socket fittings. These fittings are designed to be connected using solvent cement joints with PVC pipes conforming to IS 4985 for water supply.
IS 7834 (Parts 1 to 8):1987 – Standard Requirements Overview
Indian Standard IS 7834 (Parts 1 to 8):1987 lays down comprehensive requirements for Injection Moulded PVC Socket Fittings joined using solvent cement for water supply systems. These fittings are intended for use with PVC pipes conforming to IS 4985 and are widely used in potable water distribution networks.
Structure of IS 7834 Standard
- Part 1: General requirements
- Part 2: 45° elbow – specific requirements
- Part 3: 90° elbow – specific requirements
- Part 4: 90° tee – specific requirements
- Part 5: 45° tee – specific requirements
- Part 6: Socket – specific requirements
- Part 7: Union – specific requirements
- Part 8: Cap – specific requirements
| Type of Fitting | Group 1 (mm) | Group 2 (mm) | Group 3 (mm) |
|---|---|---|---|
| 45° Elbow | 16 – 63 | 75 – 160 | 180 – 315 |
| 90° Elbow | 16 – 63 | 75 – 160 | 180 – 315 |
| 90° Tee | 16 – 63 | 75 – 160 | 180 – 315 |
| 45° Tee | 16 – 63 | 75 – 160 | — |
| Socket | 16 – 63 | 75 – 160 | 180 – 315 |
| Union | 16 – 63 | — | — |
| Cap | 16 – 63 | 75 – 160 | 180 – 315 |
Material Requirements
The fittings must be manufactured primarily from polyvinyl chloride (PVC). Only approved additives necessary for processing, surface finish, mechanical strength, and opacity are permitted.
Mandatory Tests
- Stress relief test
- Opacity test
- Effect on water
- Short-term hydraulic pressure test
- Dimensional verification
- Type test
- Acceptance test
Marking & BIS License Requirement
Each fitting must be permanently marked with the manufacturer’s identification, size, and applicable pressure class. The scope of the BIS license must clearly define the types of fittings, sizes, and pressure ratings covered. The ISI Mark may be applied only after obtaining a valid BIS license, which is granted following a successful evaluation of manufacturing facilities, quality control systems, and testing capabilities by the Bureau of Indian Standards.
IS 7834 – Key Quality & Performance Requirements for PVC Socket Fittings
- (i) Manufacture of injection moulded PVC socket fittings using polyvinyl chloride compound conforming to applicable Indian Standards
- (ii) Dimensional accuracy and socket geometry suitable for solvent cement jointing with PVC pipes as per IS 4985
- (iii) Uniform wall thickness and smooth internal surfaces to ensure proper flow characteristics
- (iv) Adequate mechanical strength to withstand internal pressure and handling stresses during installation
- (v) Resistance to deformation, leakage, and joint failure under normal service conditions
- (vi) No adverse effect on potable water quality when used in water supply systems
- (vii) Proper marking indicating manufacturer identification, size, and pressure class
- (viii) Consistency in production quality as per the approved Scheme of Inspection and Testing (SIT)
Overview of ISI Mark Certification for PVC Socket Fittings (IS 7834)
BIS ISI Mark certification for Injection Moulded PVC Socket Fittings under IS 7834 is mandatory for manufacturers intending to supply fittings for potable water distribution systems in India. The certification ensures that fittings used in solvent cement jointed pipelines meet prescribed safety, performance, and durability requirements.
ISI certified PVC socket fittings are commonly used in residential, commercial, and municipal water supply networks, where reliable joint performance and long service life are critical. Certification provides assurance to authorities, contractors, and consumers regarding product conformity with Indian Standards.
The BIS ISI certification process validates manufacturing consistency, quality control practices, and testing capability before permitting the use of the ISI Mark on PVC socket fittings covered under IS 7834.
Process Required for BIS ISI Mark Certification for PVC Socket Fittings (IS 7834)
To obtain BIS ISI Mark certification for Injection Moulded PVC Socket Fittings under IS 7834 (Parts 1 to 8):1987, manufacturers must comply with the BIS Product Certification Scheme (Scheme-I). The certification confirms that fittings conform to approved design, manufacturing controls, and performance requirements before being introduced into the Indian market.
Estimated Timeline: BIS ISI certification for PVC socket fittings generally takes around 30–45 days for Indian manufacturers and 5–6 months for foreign manufacturers, depending on factory preparedness, testing readiness, and inspection scheduling.
Step-by-Step Certification Process
- Scope Definition: Identify the types of PVC socket fittings, sizes, and pressure classes intended to be covered under the BIS license as per IS 7834.
- Application Filing: Submit the BIS application through the Manak Online portal along with product details, factory information, manufacturing process flow, and quality control arrangements.
- Quality & Testing Readiness: Ensure in-house or external testing arrangements are in place in accordance with the approved Scheme of Inspection and Testing.
- Factory Inspection: BIS officials conduct a factory visit to verify raw material control, moulding process, inspection methods, marking practices, and record maintenance.
- Sample Testing: Samples of PVC socket fittings are drawn and tested in BIS-recognized laboratories as per relevant parts of IS 7834.
- Grant of BIS License: Upon satisfactory inspection and compliant test results, BIS grants the Certification Marks License, permitting the use of the ISI Mark on approved PVC socket fittings.
Requirements to Obtain BIS License for PVC Socket Fittings (IS 7834)
- Injection moulded PVC socket fittings must conform to the applicable parts of IS 7834 (Parts 1 to 8):1987.
- Fittings must be suitable for solvent cement jointing with PVC pipes conforming to IS 4985 for water supply.
- Availability of adequate moulding machinery, dimensional inspection tools, and testing arrangements as per the approved Scheme of Inspection and Testing (SIT).
- Consistent manufacturing process with controlled raw material usage and traceable production records.
- Appointment of qualified quality control personnel responsible for inspection, testing, and marking compliance.
To obtain BIS ISI Mark certification for PVC socket fittings under Product Certification Scheme-I, manufacturers are required to submit documents broadly classified into the following categories:
- Administrative Documents: Company incorporation certificate, factory address proof, GST registration, and statutory approvals.
- Technical Documents: Details of fittings covered, sizes, pressure classes, moulding process, drawings, and compliance declaration as per IS 7834.
- Quality Control Documents: In-house testing capability, calibration records, inspection procedures, and QC personnel details.
- Brand & Commercial Details: Brand name, trademark registration (if applicable), and authorization letters.
Cost of BIS ISI Certification for PVC Socket Fittings (IS 7834)
The following are indicative statutory charges involved in obtaining BIS ISI Mark certification for Injection Moulded PVC Socket Fittings under Product Certification Scheme-I. All government fees are payable directly to the Bureau of Indian Standards (BIS).
| S. No. | Particular | Amount (INR) | Remarks |
|---|---|---|---|
| 1 | Application Fee | ₹1,000 | Payable to BIS |
| 2 | Inspection / Audit Fee | ₹7,000 | Payable to BIS |
| 3 | Product Testing Fee | As applicable | Depends on type & size of fittings |
| 4 | Marking Fee | As per BIS norms | Based on annual production |
Note: Product testing is a critical step in BIS certification. Costs may vary depending on the number of fittings, sizes, pressure classes, and laboratory selected by BIS.
Benefits of ISI Mark Certification for PVC Socket Fittings (IS 7834)
ISI Mark certification for Injection Moulded PVC Socket Fittings under IS 7834 provides regulatory approval, market credibility, and assurance of product performance in potable water supply systems.
1. Mandatory Legal Compliance
ISI certification is mandatory for PVC socket fittings used in water supply pipelines before they can be manufactured, sold, or supplied in India.
2. Acceptance in Government & Utility Projects
Certified fittings are widely accepted by municipal bodies, water boards, and infrastructure authorities.
3. Reliable Joint Performance
Compliance with IS 7834 ensures proper solvent cement jointing and long-term leak-free performance.
4. Improved Brand Credibility
The ISI Mark enhances trust among contractors, consultants, and end users by demonstrating compliance with Indian Standards.
5. Competitive Advantage
ISI-certified fittings gain preference in tenders and regulated water supply projects across India.
FAQs – BIS ISI Certification for PVC Socket Fittings (IS 7834)
1. Is BIS ISI certification mandatory for PVC socket fittings?
Yes. PVC socket fittings used for water supply applications must comply with IS 7834 and carry a valid ISI Mark.
2. Which standard applies to injection moulded PVC socket fittings?
Injection moulded PVC socket fittings are governed by IS 7834 (Parts 1 to 8):1987.
3. Can foreign manufacturers apply for BIS certification?
Yes. Foreign manufacturers must apply under the FMCS route and appoint an Authorized Indian Representative (AIR).
4. Is factory inspection mandatory?
Yes. BIS conducts a factory inspection to verify manufacturing and quality control compliance before granting the license.
