Manufacturer, Supplier & Exporter of Drinking Water Epoxy Coated Pipes

Drinking‑water epoxy‑coated pipes are steel pipes (typically carbon or line‑pipe grade) whose internal and/or external surfaces are lined or coated with an epoxy resin system approved for potable water service. This coating creates a smooth, non‑toxic, corrosion‑resistant barrier between the water and the steel substrate, preventing rusting, leaching of iron, and ensuring the water remains safe for human consumption. Such products are essential for municipal water supply networks, distribution lines, and other drinking‑water infrastructure..

Riddhi Siddhi Impex functions as both manufacturer (or partnered supplier) and domestic distributor of these epoxy‑coated pipes, catering to Indian cities. They adopt quality steel substrates compliant with recognized standards (for example ASTM A106, API 5L or equivalents), prepare the pipe by blast‑cleaning or surface treatment, apply a certified drinking‑water grade epoxy lining (or coating) and then inspect and test the final product for safe use in potable water systems. With production quality controls in place, their pipes are designed to meet the performance expectations of drinking‑water networks..

Epoxy coatings for potable water applications offer several advantages: they reduce corrosion of the steel pipe, prevent scale buildup on the pipe interior, improve hydraulic flow by providing a smooth internal surface, and protect against microbial and chemical attack. Further, if the coating is approved to standards such as NSF/ANSI 61 or equivalent potable‑water standards, it ensures safety of the water passing through the pipe. The coating also enhances the life‑span of the pipe and reduces the need for frequent maintenance or replacement.

Drinking‑water epoxy‑coated pipes are used in water treatment plants, distribution mains, pumping stations, overhead tanks, and network supply lines in municipal or industrial settings. They are especially relevant where water quality must be preserved, where soil or water chemistry is aggressive, and where replacement and downtime are costly. For instance, in India’s rapidly expanding water‑supply networks in urban and peri‑urban areas, these coated pipes offer a reliable long‑term solution..

Riddhi Siddhi Impex supplies these drinking‑water epoxy‑coated pipes across a broad Indian domestic footprint. Their supply network covers major metropolitan and industrial hubs such as Mumbai, Delhi, Bengaluru (Bangalore), Hyderabad, Chennai, Kolkata, Pune and Ahmedabad. In addition, they serve cities like Surat, Vadodara, Rajkot, Nagpur, Indore, Bhopal, Jaipur, Kanpur, Lucknow, Agra, Varanasi, Amritsar, Chandigarh, Mysuru (Mysore), Udaipur, Jodhpur, Visakhapatnam, Coimbatore, Madurai, Kochi, Thiruvananthapuram, Mangalore, Nashik, Kolhapur, Chandrapur, Akola, Vilayat, Somnath, Dahej, Navsari, Valsad and Rajpipla. This wide coverage ensures drinking‑water infrastructure projects in both large metros and smaller regional cities can access these specialised coated pipes..

Drinking Water Epoxy Coated Pipes

Specification

Product Name	Drinking Water Epoxy Coated Pipes
Manufacturer	Riddhi Siddhi Impex
Base Material	Carbon Steel / Line Pipe Steel (ASTM A106 / API 5L / IS 3589)
Coating Material	Epoxy Resin (Drinking Water Grade)
Standard	NSF/ANSI 61 / WRAS / IS / EN Standards
Size Range	1/2” NB to 48” NB
Wall Thickness	Sch 20 to Sch 160 / XXS
Length	Single Random, Double Random, or Cut Lengths
Pipe Ends	Plain End (PE), Beveled End (BE), or Threaded
Form	Seamless, Welded, ERW, or LSAW
Applications	Municipal Water Supply, Potable Water Networks, Distribution Lines, Water Treatment Plants

Chemical Composition (Base Carbon Steel)

Element	Content (%)
Carbon (C)	0.23 Max
Manganese (Mn)	0.30 – 1.06
Phosphorus (P)	0.05 Max
Sulfur (S)	0.045 Max
Silicon (Si)	0.10 – 0.35
Copper (Cu)	0.40 Max
Nickel (Ni)	0.40 Max
Chromium (Cr)	0.40 Max

Mechanical Properties

Property	Value
Tensile Strength	≥ 415 MPa
Yield Strength (0.2% offset)	≥ 240 MPa
Elongation	≥ 20%
Hardness	≤ 95 HRB
Impact Resistance	Excellent (Due to Epoxy Coating)
Coating Adhesion	Strong adhesion as per NSF/ANSI 61

Dimension Chart (Nominal)

Nominal Pipe Size (NB)	Outside Diameter (mm)	Wall Thickness (mm)	Length
1/2"	21.3	2.77	Up to 12 m
1"	33.4	3.38	Up to 12 m
2"	60.3	3.91	Up to 12 m
4"	114.3	6.02	Up to 12 m
6"	168.3	7.11	Up to 12 m
10"	273.1	9.27	Up to 12 m
16"	406.4	12.70	Up to 12 m

Equivalent Grades

Standard	Grade
ASTM	A106 Grade B / A53 Grade B
API	5L Grade B / X42 / X52
EN	EN 10216 / EN 10224
DIN	St 37.2 / St 52.3
IS (India)	IS 1239 / IS 3589

Equivalent Standards

Standard	Description
NSF/ANSI 61	Certification for drinking water safe epoxy coating
WRAS	UK potable water compliance standard
IS 1239 / IS 3589	Indian standards for steel pipes for water service
EN 10216 / EN 10224	European standards for seamless and welded steel pipes

Other Types of Coated Steel Pipes

Type	Description
3LPE Coated Pipes	Three-layer polyethylene coated pipes for corrosion protection
FBE Coated Pipes	Fusion bonded epoxy coating for high adhesion and corrosion resistance
PU + Epoxy Coated Pipes	Polyurethane and epoxy coated pipes for subsea applications
PP Coated Pipes	Polypropylene coated steel pipes for underground or offshore service

Because drinking‑water coated pipes may need to be manufactured to custom lengths, sizes or coatings (especially when project specifications vary by city), Riddhi Siddhi Impex maintains an efficient logistics and inventory framework. They are able to deliver to major port or inland dispatch locations, coordinate transport, packaging (to keep the epoxy lining intact), and meet regional delivery schedules – whether to coastal centres like Kochi, Visakhapatnam, or inland sites such as Nagpur, Indore or Kanpur. This ensures project readiness and minimal delay for water‑supply installations..

Frequently Asked Questions (FAQs)

Q1: What is the main advantage of epoxy-coated pipes for drinking water?

A1: They prevent corrosion and rust inside the pipe, maintain water quality, and extend the lifespan of the pipeline.

Q2: Can custom pipe sizes and lengths be supplied?

A2: Yes, Riddhi Siddhi Impex can provide custom lengths, diameters, and coating thicknesses according to project specifications.

Q3: Are these pipes safe for potable water?

A3: Yes, the epoxy coating meets standards such as NSF/ANSI 61 and WRAS, ensuring safety for drinking water applications.

Q4: In which Indian cities can I procure these pipes?

A4: They are supplied across India including Mumbai, Delhi, Bengaluru, Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, Surat, Vadodara, Rajkot, Nagpur, Indore, Jaipur, Kanpur, Lucknow, Varanasi, and many more cities.