BIS for Yoke Type Medical Cylinder Valves

BIS Certification Consultancy for Yoke Type Valve Connections for Small Medical Gas Cylinders | IS 3745

Introduction

Yoke Type Medical Cylinder Valves with Pin Index Connection are specialized valve assemblies used with small medical gas cylinders. These valves are critical components in medical-gas systems because they control the connection between a gas cylinder and the medical-gas delivery equipment.

Correct inlet and outlet connections, dimensional compatibility, material integrity, pressure resistance, leakage performance, operating torque and endurance are essential to safe and reliable operation.

The earlier Indian Standard was IS 3745:2006 – Yoke Type Valve Connections for Small Medical Gas Cylinders – Specification (Second Revision). BIS subsequently revised the standard to IS 3745:2024 – Yoke Type Medical Cylinder Valve with Pin Index Connection (Third Revision). BIS's implementation guideline specified 14 April 2025 as the final date for implementation of the revised standard.

The current BIS Product Manual is PM/IS 3745/3/December 2024 and is issued under Scheme-I of the BIS Conformity Assessment Regulations, 2018.

Qualitance India provides end-to-end BIS Certification consultancy for manufacturers of Yoke Type Medical Cylinder Valves, including product assessment, documentation, laboratory testing coordination, technical compliance, factory inspection preparation and BIS licence support.

Current BIS Standard for IS 3745

The current standard is:

IS 3745:2024 – Yoke Type Medical Cylinder Valve with Pin Index Connection (Third Revision).

The previous standard:

IS 3745:2006 – Yoke Type Valve Connections for Small Medical Gas Cylinders

was superseded after implementation of the revised standard.

BIS's December 2024 Product Manual confirms that certification is now operated against IS 3745:2024.

Important Transition Update

BIS originally prescribed 14 April 2025 as the implementation deadline for IS 3745:2024. BIS subsequently published an archive notice concerning extension of the concurrent-running period of IS 3745:2006 and IS 3745:2024.

For any new application, licence renewal, scope change or transition activity, manufacturers should therefore verify the exact current requirement with BIS and work to the latest applicable standard and Product Manual.

Is BIS Certification Required for IS 3745?

Yes. BIS's current Scheme-I compulsory-certification list includes:

IS 3745 – Yoke Type Valve Connection for Small Medical Gas Cylinders.

The current Product Manual operates the certification process under Scheme-I.

Accordingly, manufacturers of covered products should obtain and maintain the applicable BIS certification before supplying products for applications subject to the compulsory certification framework.

What Are Yoke Type Medical Cylinder Valves?

A Yoke Type Medical Cylinder Valve is a valve designed for connection to a small medical gas cylinder using a pin-index connection arrangement.

Its major functions include:

Controlling gas flow from the cylinder
Providing the specified cylinder-to-equipment connection
Preventing incompatible gas-equipment connections
Maintaining gas tightness
Withstanding internal pressure
Providing reliable repeated operation
Maintaining dimensional compatibility

The pin-index arrangement is particularly important in medical-gas applications because connection geometry is used to provide gas-specific connection identification.

Medical Gases and Gas Mixtures

The exact gas or gas-mixture configuration is an important part of the licence scope.

The current Product Manual's scope-of-licence format specifically requires declaration of:

Type of gas/gas mixture
Inlet connection
Outlet connection
Whether a Pressure Relief Device is provided
PRD flow rate, where applicable
Other applicable aspects
PESO approval number
Approved drawing number

Therefore, manufacturers should finalize the exact valve configuration before submitting their application and samples.

Scope of BIS Licence

The current Product Manual states that the licence scope is to be described against IS 3745:2024 with details including:

Type of Gas/Gas Mixture

The specific gas or mixture for which the valve is designed must be declared.

Inlet Connection

The inlet connection must correspond to the approved configuration.

Outlet Connection

The particular outlet connection must be identified.

Pressure Relief Device

The licence scope must indicate whether a Pressure Relief Device is provided and, where provided, its flow rate.

PESO Approval and Drawing

The scope format also requires reference to applicable PESO approval number and drawing number.

This makes product drawing and regulatory-approval documentation especially important in the certification process.

Product Grouping

The current Product Manual states:

Each variety of valve shall be tested for Grant of Licence (GoL) / Change in Scope of Licence (CSoL).

This is a significant requirement.

A manufacturer should not assume that testing one valve configuration automatically covers every gas, inlet connection, outlet connection or PRD configuration.

The desired licence scope should therefore be finalized before testing.

BIS Sample Requirements

The current Product Manual specifies the following samples:

Sample Type	Quantity
Assembled valves	5 pieces
Samples for tensile and Izod testing	3 pieces each
Valve body pieces for chemical testing	3 pieces
Brass components	5 pieces

These sample requirements are specified in the current PM/IS 3745/3/December 2024.

Manufacturers should prepare the samples according to the exact product configuration and test requirements.

Raw Material Requirements

The current Product Manual requires valve-body and component materials to comply with the relevant requirements of IS 3745:2024.

The manufacturer must obtain material test certificates from suppliers, and approved material according to the drawing is to be used. The manufacturer must maintain identification and traceability between the valves and the associated material certificates. Materials with seams, cracks, lamination or other injurious defects must not be used.

For metallic and non-metallic components in contact with medical gas, the revised standard introduced compatibility requirements based on:

IS/ISO 11114-1 for metallic materials
IS/ISO 11114-2 for non-metallic materials

This is an important change from the earlier standard.

Material Testing

The current Product Manual identifies:

Chemical Composition of Valve Body

This is a subcontractable test performed on one sample from each material consignment, although further testing is not required where the material is accompanied by the required test certificate or is ISI Marked.

Tensile Strength and Elongation

Tensile strength and percentage elongation are required tests and are carried out for each control unit.

The Product Manual references IS 1608 for the applicable method.

Izod Impact Strength

Izod impact strength is required for each control unit, with the test method referenced to IS 1598.

Important Infrastructure Requirement: Forging and Machining

One of the most important certification requirements for this product concerns the valve housing.

The current Product Manual states that the licensee must possess all requisite infrastructure for forging and machining of the valve housing in its own premises.

The forgings of the valve housing/body and their machining cannot be subcontracted or purchased from outside.

This requirement should be checked carefully before submitting a BIS application.

Manufacturing Process

A typical manufacturing process for a Yoke Type Medical Cylinder Valve can include:

1. Material Procurement

Approved metallic and non-metallic materials are procured with appropriate test certificates and traceability.

2. Forging

The valve housing/body is forged within the manufacturer's own premises.

3. Heat Treatment

The forged component may undergo controlled thermal processing as required.

4. Machining

The valve body, threads, connection interfaces and other features are machined in-house.

5. Component Manufacturing

Brass components and other valve parts are manufactured or processed according to approved drawings.

6. Protective Finish

Applicable surface treatment/electroplating is carried out.

7. Valve Assembly

Internal components, seals and operating components are assembled.

8. Dimensional Inspection

Inlet, outlet and yoke dimensions are verified.

9. Pressure and Leakage Testing

The assembled valve is tested for hydraulic burst pressure and internal/external tightness as applicable.

10. Torque and Endurance Testing

Operating torque and repeated-operation endurance are verified.

11. Final Inspection

Conforming valves are inspected and prepared for marking and dispatch.

Major Tests Under IS 3745:2024

The revised standard introduced important technical changes and additional testing.

The current Product Manual identifies the following major tests.

1. Design Validation

Design validation is required during initial approval and whenever there is a change in design or material.

A fully dimensional sectional drawing and manufacturing scheme must be submitted for approval.

2. Tensile Strength

The material of the valve body is tested for tensile strength.

3. Percentage Elongation

Elongation is evaluated as part of the material mechanical-property testing.

4. Izod Impact Strength

The valve-body material is evaluated for impact strength.

5. Protective Finish – Appearance

The finished valve is examined for appearance according to IS 1068.

This is a routine check on every valve.

6. Protective Finish – Thickness

Coating thickness is verified according to the applicable provisions of IS 1068.

The Product Manual requires one sample from each batch of up to 1000 valves electroplated at a time.

7. Protective Finish – Ductility

Ductility of the protective finish is checked according to IS 1068.

8. Protective Finish – Adhesion

Coating adhesion is checked according to the applicable IS 1068 method.

9. Corrosion Resistance

The protective finish is assessed for corrosion resistance using the applicable salt-spray requirements.

Valve Connection Tests

10. Yoke Dimensions

Yoke dimensions are verified according to the applicable clauses of the standard.

The equipment can include:

Vernier caliper
Micrometer

11. Valve Outlet Connections

The outlet connection dimensions are checked against the specified gas-specific configurations.

The current Product Manual covers outlet connections under Clauses 9.1 to 9.11.

12. Valve Inlet Connections

The inlet connection is checked according to Clause 10 of IS 3745:2024 and the applicable provisions of IS 3224.

Suitable thread plug gauges and ring gauges are required.

Pressure Testing

13. Hydraulic Burst Pressure Test

This is one of the most important changes introduced by IS 3745:2024.

BIS specifically identified Hydraulic Burst Pressure Test as a new test added in the revised standard.

The current Product Manual requires this test on 2 valves from each control unit.

A suitable test bench with pressure gauge is required.

14. Internal and External Tightness Test

Every valve is checked for internal and external tightness.

The current Product Manual classifies this as an in-house required test.

Leakage control is especially important for medical gas applications.

Pressure Relief Device Testing

Where a Pressure Relief Device is provided, applicable testing includes:

Minimum Flow Rate

Two valves are tested from each control unit for the applicable PRD flow-rate requirement.

Relief/Bursting Pressure

Two valves are tested from each control unit for the applicable relief/bursting-pressure requirement.

The licence scope must indicate whether a PRD is provided and, where applicable, its flow rate.

Valving Torque Test

The valving torque test evaluates the force/torque required to operate the valve.

The current Product Manual specifies:

One sample out of 5,000 valves of the same type, subject to a minimum of one valve per month.

The test requires a suitable torque wrench and fixture.

Endurance Test

The endurance test evaluates the valve's ability to withstand repeated operation.

The current Product Manual specifies:

One sample out of 5,000 valves of the same type, subject to a minimum of one valve per month.

A holding fixture and cycle counter are required for this test.

BIS's revised-standard implementation guideline states that the endurance-test procedure was modified to align with the procedure specified in IS 3224.

Testing Equipment Required

The current Product Manual lists major equipment required for IS 3745:2024.

Important equipment includes:

Tensile testing machine
Izod impact testing machine
Coating-thickness test equipment
Salt-spray chamber
Adhesion-test arrangement
Thread plug gauges
Ring gauges
Hydraulic pressure-test bench
Pressure gauges
Torque wrench
Torque-test fixture
Endurance-test fixture
Cycle counter
Vernier caliper
Micrometer

The equipment list is indicative and not exhaustive.

Calibration Requirements

The current Product Manual specifies calibration frequencies for important equipment.

Universal Testing Machine

Once a year

Impact Testing Machine

Once every three years

Pressure Gauges

Once a month

Pyrometer Used for Heating Furnace

Once every six months

Master Gauges

Master gauges used to check inspection gauges are to be sent for independent laboratory rechecking once every three years.

Manufacturers should maintain calibration records and ensure that equipment remains valid before performing certification-related testing.

Quality Assurance Plan

The manufacturer should establish a strong Quality Assurance Plan covering:

Material inspection
Material certificates
Heat-number traceability
Forging controls
Machining controls
Heat-treatment controls
Protective-finish controls
Dimensional inspection
Gas-specific connection verification
Pressure testing
Leakage testing
Torque testing
Endurance testing
Rejection controls
Calibration
Product identification
Final inspection

All applicable test records must be maintained.

Control Unit for IS 3745:2024

The current Product Manual defines the control unit as:

A lot of valve blanks of the same type and size manufactured in a day from material from the same supplier or blanks from the same heat number, whichever is later, under similar production conditions.

This definition is important for routine testing and finished-lot inspection.

Finished Lot Inspection

The current Product Manual uses the same control unit as the lot for finished-lot inspection.

Depending on lot size, random samples are taken for valve inlet connections, valve outlet connections and internal/external tightness testing:

Control Unit Size	Sample Size
Up to 500	13
501–1000	20
Over 1000	32

If a sample fails one of the specified requirements, the licensee must test all valves in the lot for the failed requirement, segregate the lot and re-offer the segregated lot for BIS inspection as a fresh lot.

Hydraulic burst pressure, coating thickness and applicable PRD pressure/flow tests are performed on 2 valves from each control unit.

Routine Testing

The current Product Manual identifies the following important routine controls:

Test	Frequency
Valve body chemical composition	Each material consignment
Tensile strength & elongation	Each control unit
Izod impact	Each control unit
Protective-finish appearance	Each valve
Coating thickness	1 per 1000 valves or less electroplated at a time
Ductility	1 per 1000 valves or less electroplated at a time
Adhesion	1 per 1000 valves or less electroplated at a time
Corrosion resistance	1 per 1000 valves or less electroplated at a time
PRD flow rate, if provided	2 per control unit
PRD relief/bursting pressure, if provided	2 per control unit
Yoke dimensions	Each valve
Outlet connections	Each valve
Inlet connections	Each valve
Hydraulic burst pressure	Each control unit
Internal & external tightness	Each valve
Valving torque	1 per 5000 valves, minimum 1/month
Endurance	1 per 5000 valves, minimum 1/month

These requirements are drawn from the current December 2024 Product Manual.

Material Certificates

The manufacturer must obtain material test certificates from suppliers and maintain a method to identify valves against those certificates.

Where the prescribed material is already accompanied by the required test certificate or is ISI Marked, further testing may not be required for the relevant material requirement, subject to the Product Manual.

This makes supplier control and traceability an important part of factory preparedness.

Fully Dimensional Drawing

For BIS certification, the manufacturer needs a fully dimensional sectional drawing of the valve and a scheme of manufacture.

The current Product Manual states that this drawing and manufacturing scheme are to be submitted to the inspecting authority for final approval by the statutory authority.

The drawing should clearly identify:

Valve body
Inlet connection
Outlet connection
Yoke
Pin-index arrangement
Threads
Internal components
Sealing components
Pressure relief device, if provided
Relevant dimensions
Material specifications

PESO Approval and Drawing

The current licence-scope format specifically calls for:

PESO approval number and drawing number

as applicable.

Manufacturers should therefore keep the applicable statutory approval and approved drawing information ready during certification.

Factory Requirements

The BIS Product Manual places particular emphasis on the manufacturer's own infrastructure.

The licensee must have in-house facilities for:

Forging valve housing
Machining valve housing
Required production controls
Relevant testing and inspection

The forging and machining of the valve housing/body cannot be outsourced or purchased from an external source.

This requirement should be confirmed before the application is submitted.

Factory Inspection

During the BIS assessment, important areas may include:

Raw Material Section

BIS may verify:

Material certificates
Heat numbers
Material identification
Incoming inspection

Forging Section

The manufacturer should demonstrate its own valve-housing forging capability.

Machining Section

Machining of the valve body should be carried out within the manufacturer's premises.

Surface-Finish Section

Electroplating/protective-finishing controls should be available where applicable.

Assembly Section

Valve assembly must follow the approved design.

Laboratory

Testing equipment should be available, calibrated and operated by competent personnel.

Quality Records

The manufacturer should maintain:

Production records
Test reports
Calibration records
Material certificates
Control-unit records
Rejection records
Corrective-action records

BIS Marking Requirements

The current Product Manual states that labelling and marking shall be according to IS 3745:2024.

Only valves conforming to the applicable requirements and covered by the BIS licence should carry the Standard Mark.

The manufacturer must ensure:

Correct BIS Standard Mark
Product identification
Approved product configuration
Traceability
Applicable licence information
Proper marking durability

Rejected or non-conforming valves must not be presented as BIS-certified.

Test Certificate and Inspection Records

The current Product Manual includes a prescribed test certificate format for IS 3745 certification.

The certificate records items such as:

Manufacturer
Purchaser
Order number
Control-unit number
Valve fittings description
Outlet number
Quantity offered
Valve inlet connection
Valve outlet connection
Internal and external tightness
Hydraulic burst pressure
Coating thickness
Tensile/elongation results
Impact results
Valving torque
Endurance test

BIS inspection records also distinguish tests verified from manufacturer records from tests performed during lot inspection.

Important Changes from IS 3745:2006 to IS 3745:2024

The revision from IS 3745:2006 to IS 3745:2024 introduced several significant technical changes.

Material Compatibility

Metallic and non-metallic materials in contact with gas now have modified compatibility requirements referencing IS/ISO 11114-1 and IS/ISO 11114-2.

Valve Design

Specific valve design requirements have been introduced.

Pressure Relief Device

Requirements for pressure relief devices have been specified.

Hydraulic Burst Pressure

Hydraulic burst pressure testing was added as a new product test.

Endurance Testing

The endurance-test procedure was modified to follow the procedure in IS 3224.

These changes should be considered carefully by manufacturers transitioning from the older standard.

BIS Testing Laboratory for IS 3745

The BIS Laboratory Information Management System currently includes IS 3745:2024 – Yoke Type Medical Cylinder Valve with Pin Index Connection in its laboratory scope records.

The LIMS data identifies testing areas including:

Yoke dimensions
Outlet connections
Inlet threads
Hydraulic burst pressure
Internal/external tightness
Valving torque
Endurance

Laboratory availability and exact test scope should always be checked before sending samples because individual laboratory scopes may contain exclusions.

BIS Testing Cost

The laboratory testing cost for IS 3745 can vary according to:

Laboratory
Product variety
Gas type
Inlet connection
Outlet connection
PRD configuration
Material testing
Protective finish
Number of tests
Scope of laboratory accreditation/recognition

Current BIS LIMS records do not provide a single universal price applicable to every IS 3745 certification project. Therefore, manufacturers should obtain a laboratory quotation after the exact product scope has been finalized.

Total Cost of BIS Certification

The overall BIS certification expenditure can include:

BIS application/certification charges
Product testing
Sample preparation
Material testing
External laboratory testing where permitted
Testing equipment
Calibration
Factory preparation
Documentation
Statutory approvals
Inspection-related expenses
Re-testing, if required
Consultancy support

A reliable project estimate should be prepared only after reviewing the actual valve design and proposed licence scope.

Documents Required for BIS Certification

Typical documents may include:

Company registration documents
Factory address proof
Factory layout
Manufacturing process flow chart
Machinery list
Forging-machine details
Machining-machine details
Heat-treatment details
Product drawings
Fully dimensional sectional drawing
Scheme of manufacture
PESO approval information
Gas/gas-mixture details
Inlet connection details
Outlet connection details
PRD details
Raw-material specifications
Material test certificates
Supplier information
Laboratory equipment list
Calibration certificates
Test procedures
Test records
Quality Assurance Plan
Control-unit records
Technical personnel details
GST/business documents
Trademark information
Proposed marking details
BIS declarations and undertakings

The final documentation depends on the product configuration and application.

Quality Control and Traceability

A robust traceability system should connect:

Raw Material → Heat Number → Valve Blank → Forging → Machining → Heat Treatment → Surface Finish → Assembly → Testing → Final Lot → Dispatch

This enables the manufacturer to identify the material and manufacturing history of every production lot.

Common Reasons for BIS Certification Delays

Manufacturers of medical cylinder valves may face delays because of:

Applying against an outdated standard
Incorrect gas configuration
Incomplete approved drawing
Missing PESO information
Incorrect inlet connection
Incorrect outlet connection
Material incompatibility
Missing material certificates
Inadequate forging facility
Outsourced valve-body machining
Failed tensile test
Failed Izod test
Coating failure
Leakage failure
Burst-pressure failure
Torque failure
Endurance failure
Inadequate gauges
Calibration problems
Incomplete test records
Factory inspection observations

The transition to IS 3745:2024 makes it especially important to review the revised technical requirements before testing.

Who Needs BIS Certification for Yoke Type Medical Cylinder Valves?

The requirement is relevant to manufacturers producing covered Yoke Type Medical Cylinder Valves for the applicable Indian market and regulated applications.

Potential manufacturers include:

Medical-gas equipment manufacturers
Gas-valve manufacturers
Medical-cylinder component manufacturers
Industrial valve manufacturers entering the medical-gas sector
Specialty gas-equipment manufacturers

The exact regulatory applicability should be checked against the current BIS requirements and the product's intended use.

Benefits of BIS Certification

BIS certification can help manufacturers demonstrate conformity with the applicable Indian Standard and regulatory framework.

Benefits include:

Compliance with applicable requirements
Authorization to use the BIS Standard Mark
Improved customer confidence
Better product quality
Improved manufacturing control
Better material traceability
Stronger acceptance among institutional buyers
Better documentation
Improved process discipline

BIS Certification for Yoke Type Medical Cylinder Valves – Quick Process

Product Assessment → Standard/Revision Verification → Scope Finalization → Drawing & PESO Review → Documentation → Sample Preparation → Laboratory Testing → Factory Inspection → Compliance Closure → BIS Licence → Standard Marking

Why Choose Qualitance India?

Qualitance India provides professional BIS Certification consultancy for Yoke Type Medical Cylinder Valve manufacturers.

Our support can include:

IS 3745 applicability assessment
Current-standard/revision review
Product scope planning
Gas and connection assessment
Drawing/document review
BIS application preparation
Sample planning
Laboratory coordination
Product testing coordination
Quality Assurance Plan support
Testing-equipment guidance
Factory inspection preparation
Non-conformity response assistance
BIS licence follow-up
Post-certification compliance support

We help manufacturers organize the technical and documentation requirements before proceeding with BIS certification.

Frequently Asked Questions

1. What is BIS Certification for Yoke Type Medical Cylinder Valves?

It is the BIS conformity-assessment process for demonstrating conformity of covered Yoke Type Medical Cylinder Valves with the applicable IS 3745 requirements and obtaining authorization to use the BIS Standard Mark.

2. What is the current standard for IS 3745?

The revised standard is IS 3745:2024 – Yoke Type Medical Cylinder Valve with Pin Index Connection (Third Revision).

3. What was the previous standard?

The previous standard was IS 3745:2006 – Yoke Type Valve Connections for Small Medical Gas Cylinders – Specification (Second Revision).

4. Is IS 3745 under compulsory BIS certification?

Yes. BIS's current Scheme-I list includes IS 3745 under compulsory certification.

5. What is the current BIS Product Manual?

The current Product Manual is PM/IS 3745/3/December 2024.

6. What is the sample quantity?

The current Product Manual specifies:

5 assembled valves
3 pieces each for tensile and Izod material testing
3 valve-body pieces for chemical testing
5 brass components

7. Does each valve variety require testing?

Yes. The Product Manual states that each variety of valve is to be tested for Grant of Licence or Change in Scope.

8. What is included in the BIS licence scope?

The scope includes gas/gas-mixture type, inlet connection, outlet connection, PRD details where applicable, and applicable PESO approval/drawing information.

9. Is a PESO approval number required?

The current scope format includes PESO approval number and drawing number as applicable.

10. What materials are covered?

The valve body and components must comply with the applicable material requirements of IS 3745:2024. The revised standard also addresses compatibility of metallic and non-metallic materials in contact with gas.

11. Can valve-body forging be outsourced?

No. The current Product Manual requires the licensee to possess the required valve-housing forging infrastructure in its own premises.

12. Can machining of the valve body be outsourced?

No. The Product Manual states that machining of the valve housing/body cannot be subcontracted or purchased from outside.

13. Is hydraulic burst-pressure testing required?

Yes. Hydraulic Burst Pressure Test was added under IS 3745:2024 and is performed on two valves from each control unit under the current Product Manual.

14. Is leakage testing required?

Yes. Internal and external tightness testing is required on each valve.

15. Is tensile testing required?

Yes. Tensile strength and percentage elongation are tested for each control unit.

16. Is Izod impact testing required?

Yes. Izod impact strength is tested for each control unit.

17. Are coating tests required?

Yes, where protective finishing is applicable. Testing includes appearance, thickness, ductility, adhesion and corrosion resistance.

18. Is yoke-dimension testing required?

Yes. Yoke dimensions are checked on every valve.

19. Are inlet and outlet connections tested?

Yes. Inlet and outlet connection requirements are checked on every valve under the current routine-control provisions.

20. Is a pressure relief device compulsory?

The Product Manual provides requirements if a pressure relief device is provided. Where provided, the applicable PRD flow rate and relief/bursting pressure are tested.

21. How often is the valving torque test performed?

One sample from 5,000 valves of the same type, subject to a minimum of one valve per month.

22. How often is the endurance test performed?

One sample from 5,000 valves of the same type, subject to a minimum of one valve per month.

23. What is the control unit?

A control unit is a lot of valve blanks of the same type and size manufactured in a day from the same supplier's material or the same heat number, whichever is later, under similar production conditions.

24. What are the finished-lot inspection sample sizes?

They are:

Up to 500 valves: 13 samples
501 to 1000 valves: 20 samples
More than 1000 valves: 32 samples

25. What happens if a sample fails during lot inspection?

The licensee must test all valves in the lot for the failed requirement, segregate the lot and re-offer the segregated lot as a fresh lot for BIS inspection.

26. What calibration is required?

The Product Manual specifies annual calibration for the Universal Testing Machine, three-year calibration for the Impact Testing Machine, monthly calibration for pressure gauges and six-month calibration for the furnace pyrometer.

27. Is an in-house laboratory required?

The manufacturer must maintain a suitably equipped and staffed laboratory for the applicable tests identified in the Scheme of Inspection and Testing.

28. Can material testing be subcontracted?

The current Product Manual identifies chemical composition and metallic/non-metallic component compatibility testing as subcontractable, subject to the specified conditions and material certificates.

29. Which external standards are referenced for testing?

Important references include:

IS 1068 for protective finish
IS 1608 for tensile testing
IS 1598 for Izod impact testing
IS 3224 for inlet connection and the revised endurance-test procedure
IS/ISO 11114-1 for metallic gas-contact material compatibility
IS/ISO 11114-2 for non-metallic gas-contact material compatibility

30. Can Qualitance India provide complete BIS consultancy for IS 3745?

Yes. Qualitance India provides end-to-end support including product-scope assessment, documentation, laboratory coordination, technical compliance, factory inspection preparation and BIS licence assistance.

Frequently Searched Topics

BIS Certification for Yoke Type Medical Cylinder Valve
IS 3745 BIS Certification
IS 3745:2024 Certification
IS 3745:2006 Certification
Yoke Type Valve BIS Licence
Medical Gas Cylinder Valve BIS
Pin Index Valve BIS Certification
Medical Cylinder Valve Testing
IS 3745 Testing
Yoke Type Valve Testing Laboratory
BIS Testing for Medical Gas Valves
Hydraulic Burst Pressure Test IS 3745
Medical Valve Leakage Test
Medical Cylinder Valve Endurance Test
Medical Gas Valve Torque Test
PESO Approval for Medical Gas Valve
BIS Licence for Medical Gas Valve Manufacturer
Medical Cylinder Valve Certification in India
BIS Consultant for Medical Gas Equipment
IS 3745 Product Certification

Related BIS Certification Services

Qualitance India also provides BIS consultancy for manufacturers of:

Our services include:

Contact Qualitance India

Qualitance India BIS Certification Consultancy for Manufacturers

Phone: +91 93106 15170 Email: info@qualitanceindia.com Website: https://qualitanceindia.com/

Manufacturers of Yoke Type Medical Cylinder Valves can contact Qualitance India for assistance with IS 3745 certification, product testing, scope planning, drawing/document review, laboratory coordination, factory inspection preparation and BIS licence support.

Conclusion

Yoke Type Medical Cylinder Valves with Pin Index Connections are important safety-critical components used in medical gas systems. Their connection geometry, material compatibility, pressure integrity, leakage performance, protective finish, operating torque and endurance must be carefully controlled.

The current BIS certification framework is based on the revised IS 3745:2024 – Yoke Type Medical Cylinder Valve with Pin Index Connection, with the current Product Manual PM/IS 3745/3/December 2024. BIS's revision introduced important changes including new design requirements, revised gas-contact material compatibility provisions, pressure-relief-device requirements, a new Hydraulic Burst Pressure Test, and a modified endurance-test procedure.

The Product Manual also contains particularly important manufacturing requirements: the valve-body forging and machining infrastructure must be maintained at the manufacturer's own premises, and each valve variety must be tested for Grant of Licence or Change in Scope.

For manufacturers, successful certification therefore depends on correct product-scope planning, approved drawings, material traceability, in-house manufacturing capability, suitable testing facilities, calibration, quality records and continued compliance.

With professional support from Qualitance India, manufacturers can receive end-to-end assistance for IS 3745 BIS certification, including documentation, laboratory testing coordination, technical compliance, factory inspection preparation and BIS licence processing.