Separate plumbing from ACR tube
ASTM B88 water tube uses nominal sizing and defined wall types. ACR tube uses actual OD and a refrigerant-service internal condition.
Manufactured in Gujarat · Water-service tube · Export enquiries
Copper Plumbing Tubes Manufacturer in India
Specify seamless copper water tube by standard, nominal size, wall type, temper and documentation for plumbing and building-services projects.
Primary standardASTM B88 / B88MWall typesK · L · M · DWVCommon gradeUNS C12200DocumentationEN 10204 3.1
Copper tube for water and building services
Choose the tube type through the project standard and local code.
Copper plumbing tube is normally ordered under ASTM B88/B88M or a recognised regional water-tube standard such as EN 1057. ASTM B88 classifies seamless copper water tube as Type K, L, M or DWV. These types share the same outside diameter at a given nominal size but use different wall thicknesses.
Type names are not interchangeable approvals. The permitted application depends on the adopted plumbing or mechanical code, design pressure, temperature, joining method, water chemistry and project specification. State the standard, nominal size, type, grade, temper, length, quantity and documentation in the enquiry.
A clearer route to the correct water tube
Reduce type, size and compliance errors before ordering.
Compare K, L, M and DWV
A structured wall comparison helps the buyer identify the product type specified by the engineer or governing code.
Confirm certification early
Material certificates, test scope, marking and third-party inspection can be stated before commercial review.
Configure the requirement visually
Use the 3D product builder to organise the tube form and purchasing details before sending the RFQ.
The buyer and system designer remain responsible for confirming code acceptance, water quality and service suitability.
Technical specification
Published copper plumbing tube supply range
Values are based on the group’s published ASTM B88 range. Final dimensions, tolerance, temper, marking, tests and availability are confirmed against the selected standard and RFQ.
Potable-water approval is project and jurisdiction specific. State whether NSF/ANSI 61, regional approval, dual marking or other compliance evidence is required.
Wall-type selection
Understand what K, L, M and DWV identify.
The type identifies a wall series within ASTM B88. It does not replace engineering calculations or local-code review.
Type KHeaviest ASTM B88 wall seriesType LMedium wall seriesType MLighter wall seriesDWVDrain, waste and ventH58Hard-drawn straight tubeO60Soft annealed tube
| Tube type | Relative wall | Common selection context | Important limitation |
|---|---|---|---|
| Type K | Heaviest of K/L/M | Underground water service, fire protection or higher-duty installations where specified | Confirm pressure, temperature, burial and local-code requirements |
| Type L | Medium | Interior plumbing, hydronic and building-services installations where permitted | Do not assume suitability for medical gas or refrigerant service |
| Type M | Lighter | Above-ground water service only where the adopted code permits | Lower wall thickness; not allowed for every application or jurisdiction |
| DWV | Drainage wall series | Drain, waste and vent systems | Not intended as pressure water tube |
Configure before enquiring
Build the plumbing-tube requirement in 3D.
Open the interactive builder with Copper Plumbing Tubes preselected. Use it to organise the type, nominal size, standard, grade, temper, length, quantity and destination for technical review.
Select the wall type
State Type K, L, M or DWV exactly as shown in the project requirement.
Define the tube
Add ASTM B88/B88M or EN 1057, nominal size, grade, temper and length.
Confirm compliance scope
Add MTC, test, marking, approval, inspection, packing and destination requirements.
Wall comparison
Common ASTM B88 copper water tube dimensions
For a given nominal size, Types K, L and M have the same outside diameter but different wall thicknesses. Values below are published references; use the governing standard for purchase and design.
Nominal size and ODWall thicknessASTM B88 type
½ inch · 15.875 mm OD1.245 mmType K
½ inch · 15.875 mm OD0.889 mmType L
½ inch · 15.875 mm OD0.711 mmType M
¾ inch · 22.225 mm OD1.651 mmType K
¾ inch · 22.225 mm OD1.016 mmType L
¾ inch · 22.225 mm OD0.711 mmType M
1 inch · 28.575 mm OD1.651 mmType K
1 inch · 28.575 mm OD1.143 mmType L
1 inch · 28.575 mm OD0.889 mmType M
Nominal sizingType K · greenType L · blueType M · redH58 straightO60 annealed
Building-services applications
Copper water tube selected through the governing code
Hot and cold water
Domestic or commercial water distribution where the selected tube type and material comply with the project requirements.
Underground water service
Type K is commonly specified, but burial conditions, corrosion protection and local code must be reviewed.
Hydronic heating
Copper plumbing tube for applicable closed-loop heating service based on temperature, pressure and system chemistry.
Fire-protection systems
Selected tube types may be used where the fire code, listing and system design explicitly permit copper tube.
Drain, waste and vent
DWV tube for non-pressure drainage applications under the relevant plumbing code.
Prefabricated building services
Cut lengths and defined tube conditions for modular plumbing assemblies and controlled installation work.
Water-service note
Evaluate water chemistry, velocity, temperature, pressure, disinfection practice, joining materials and stagnation risk. The material alone does not guarantee system performance.
Domestic and export enquiries
Copper plumbing tube enquiries from India and international markets.
Indigo Metalloys manufactures at Timbhi Village, Umbergaon, District Valsad, Gujarat. State the project location and destination so the standard, marking, packing and commercial scope can be reviewed.
IN
India-wide enquiries
Major construction and industrial markets
Contractor, distributor and project enquiries are welcome from:
- Mumbai
- Thane
- Pune
- Ahmedabad
- Surat
- Vadodara
- Delhi NCR
- Chennai
- Bengaluru
- Hyderabad
- Kolkata
- Kochi
- Jaipur
- Lucknow
- Coimbatore
- Visakhapatnam
EX
Export enquiries
Countries and international markets
Project and distribution requirements may be submitted from:
- United Arab Emirates
- Saudi Arabia
- Qatar
- Oman
- Kuwait
- Bahrain
- Kenya
- Tanzania
- Uganda
- Ethiopia
- South Africa
- United Kingdom
- Germany
- United States
- Canada
- Australia
- Singapore
- Malaysia
Locations indicate markets from which enquiries may be evaluated. They do not represent local offices, stock points, approvals or guaranteed delivery commitments.
Compliance and order definition
State the water-service evidence before quotation.
Specify the exact tube standard, type, grade, dimensions, temper, tests, marking and any potable-water approval required by the destination project.
View quality and testing capabilities →- 01
Standard and typeASTM B88/B88M or EN 1057; K, L, M or DWV
- 02
DimensionsNominal size, OD, wall and length
- 03
Material conditionAlloy, temper, finish, ends and marking
- 04
ComplianceMTC, tests, approvals and TPI
- 05
Commercial scopeQuantity, packing, project city, country and port
Before requesting a quotation
Frequently asked questions about copper plumbing tubes
What is the difference between Type K, L and M copper tube?+
For the same nominal size, all three have the same outside diameter. Type K has the heaviest wall, Type L a medium wall and Type M a lighter wall. The engineer and applicable code determine which type is permitted.
Is ASTM B88 the correct standard for copper water tube?+
ASTM B88/B88M covers seamless copper water tube. ASTM B42 covers seamless copper pipe for general applications and uses a different dimensional basis. Purchase to the standard stated by the project.
Can ACR copper tube be used instead of plumbing tube?+
Do not substitute by appearance or outside diameter. ACR tube follows refrigerant-service requirements and actual-OD sizing, while plumbing tube follows the applicable water-tube standard and nominal type system.
Is Type M permitted for every water installation?+
No. Type M is not accepted for every service or jurisdiction. Confirm the adopted plumbing code, pressure, temperature and installation conditions before specifying it.
Does copper tube automatically have potable-water approval?+
No. Material grade and product standard do not automatically prove every regional drinking-water approval. State NSF/ANSI 61 or other required approval in the RFQ and confirm the available evidence.
Can I configure Copper Plumbing Tubes in the 3D builder?+
Yes. Open the 3D product builder with Copper Plumbing Tubes selected, prepare the requirement and send it for review.
Copper plumbing tube enquiry
Get a water-tube quotation matched to the project.
Send the standard, type, grade, nominal size, wall, temper, length, quantity, approval, inspection and destination.
The available manufacturing, certification and delivery scope is confirmed before order acceptance.