Manufacturer, Supplier & Exporter of Internal PU Coated Pipes
Internal PU Coated Pipes are high-performance pipeline solutions designed with an internal layer of polyurethane (PU) coating to provide superior resistance to corrosion, abrasion, and chemical attack. These pipes are manufactured by Riddhi Siddhi Impex, one of India’s most trusted suppliers and manufacturers of coated steel pipes. The internal PU coating enhances the flow efficiency of fluids, reduces frictional losses, and significantly extends the service life of the pipeline. These pipes are ideal for use in harsh environments where high durability and smooth fluid flow are essential...
Riddhi Siddhi Impex produces Internal PU Coated Pipes using premium-grade carbon steel, mild steel, or alloy steel pipes as the base material. The internal surface is coated with a uniform layer of polyurethane using advanced coating technology that ensures strong adhesion and smooth finish. The coating thickness typically ranges from 500 to 1500 microns, depending on the project requirements. The internal PU coating acts as an excellent barrier against corrosion caused by water, wastewater, oil, gas, and chemicals.
The Internal PU Coated Pipes offered by Riddhi Siddhi Impex are widely used in water treatment plants, oil and gas refineries, sewage networks, and chemical processing industries. Their high chemical resistance and excellent adhesion properties make them ideal for transporting aggressive fluids such as acids, brine, and hydrocarbons. Moreover, the smooth surface of polyurethane minimizes scaling and deposit formation, thereby reducing maintenance costs and improving system efficiency..
As a leading domestic supplier of Internal PU Coated Pipes in India, Riddhi Siddhi Impex has established a strong presence across major cities including Mumbai, Delhi, Bengaluru, Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, Surat, Vadodara, Rajkot, Nagpur, Indore, Bhopal, Jaipur, Kanpur, Lucknow, and Amritsar. The company also supplies to industrial hubs like Coimbatore, Visakhapatnam, Mysuru, Udaipur, Jodhpur, Kochi, Madurai, Thiruvananthapuram, Mangalore, Nashik, Kolhapur, Chandrapur, Akola, Dahej, Ankleshwar, Navsari, Valsad, Rajpipla, Vilayat, Somnath, and Narmada. This wide supply network ensures timely delivery and consistent quality to clients across India..
Riddhi Siddhi Impex follows strict quality standards such as ISO 21809-3, DIN 30677, ASTM, and API specifications to ensure that every PU coated pipe meets international performance requirements. The internal coating process involves surface blasting, cleaning, and controlled application of polyurethane to achieve a smooth, defect-free lining. Each pipe undergoes rigorous inspection and testing for coating thickness, adhesion, and chemical resistance before dispatch..
Internal PU Coated Pipes
Specification
| Product Name | Internal PU Coated Pipes (Polyurethane Lined) |
|---|---|
| Manufacturer | Riddhi Siddhi Impex |
| Base Material | Carbon Steel / Mild Steel / Alloy Steel / Stainless Steel |
| Coating Material | Polyurethane (PU) – Internal Lining |
| Coating Standard | ISO 21809-3 / DIN 30677-2 / ASTM / API / IS |
| Size Range | 1/2” NB to 48” NB (Custom Sizes Available) |
| Wall Thickness | Sch 20 to Sch 160 / XXS |
| Coating Thickness | 500 Microns to 1500 Microns |
| Pipe Ends | Plain End (PE), Beveled End (BE), or Threaded |
| Form | Seamless, Welded, ERW, LSAW |
| Applications | Water Supply, Oil & Gas, Sewage Lines, Chemical Plants, Food Processing, Fire Protection Systems |
Chemical Composition (Typical Base 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 |
| Nickel (Ni) | 0.40 Max |
| Chromium (Cr) | 0.40 Max |
| Copper (Cu) | 0.40 Max |
Mechanical Properties
| Property | Typical Value |
|---|---|
| Tensile Strength | ≥ 415 MPa |
| Yield Strength (0.2% offset) | ≥ 240 MPa |
| Elongation | ≥ 20% |
| Hardness | ≤ 95 HRB |
| Impact Resistance | Excellent (PU absorbs mechanical shocks) |
| Coating Adhesion | Strong Adhesion per ISO 21809-3 |
| Temperature Resistance | -40°C to +120°C |
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 |
| BS | 3601 / 3602 |
Equivalent Standards
| Standard | Description |
|---|---|
| ISO 21809-3 | Internal Polyurethane Coatings for Buried or Submerged Pipelines |
| DIN 30677-2 | Polyurethane Coating for Steel Pipes |
| ASTM A106 / A53 | Specification for Carbon Steel Pipe for High-Temperature and Pressure Service |
| API 5L | Specification for Line Pipe |
Other Types of Coated Pipes
| Type | Description |
|---|---|
| External PU Coated Pipes | Polyurethane coated externally for abrasion and corrosion resistance |
| 3LPE Coated Pipes | Three-layer polyethylene coated pipes for underground applications |
| FBE Coated Pipes | Fusion Bonded Epoxy coating for high corrosion protection |
| PP Coated Pipes | Polypropylene coated pipes for high-temperature resistance |
The advantages of Internal PU Coated Pipes include long-term corrosion protection, superior hydraulic performance, reduced maintenance frequency, and enhanced service life even under high-pressure or high-temperature conditions. These pipes also contribute to energy savings in pumping operations due to the reduction in internal friction. In sectors like oil and gas, these pipes help in maintaining fluid purity by preventing internal contamination or metallic leaching..
Frequently Asked Questions (FAQs)
- Q1: What are Internal PU Coated Pipes?
- A1: Internal PU Coated Pipes are steel or carbon steel pipes lined with polyurethane inside to prevent corrosion, reduce friction, and extend service life.
- Q2: What are the benefits of using Internal PU Coated Pipes?
- A2: They offer excellent corrosion protection, smooth flow, abrasion resistance, and long-term durability in water, oil, and chemical pipelines.
- Q3: What industries use Internal PU Coated Pipes?
- A3: They are used in water treatment plants, oil and gas industries, sewage systems, and food processing pipelines.
- Q4: Does Riddhi Siddhi Impex supply Internal PU Coated Pipes across India?
- A4: Yes, Riddhi Siddhi Impex supplies PU Coated Pipes across all major Indian cities including Mumbai, Delhi, Bengaluru, Hyderabad, Chennai, Ahmedabad, Surat, Vadodara, and Pune.
Cities we have supplied our products to
Mumbai, Internal PU Coated Pipes Suplier in Delhi, Internal PU Coated Pipes Suplier in Bengaluru(Bangalore), Internal PU Coated Pipes Suplier in Hyderabad, Internal PU Coated Pipes Suplier in Chennai, Internal PU Coated Pipes Suplier in Kolkata, Internal PU Coated Pipes Suplier in Pune, Internal PU Coated Pipes Suplier in Ahmedabad, Internal PU Coated Pipes Suplier in Surat, Internal PU Coated Pipes Suplier in Vadodara, Internal PU Coated Pipes Suplier in Rajkot, Internal PU Coated Pipes Suplier in Nagpur, Internal PU Coated Pipes Suplier in Indore, Internal PU Coated Pipes Suplier in Bhopal, Internal PU Coated Pipes Suplier in Jaipur, Internal PU Coated Pipes Suplier in Kanpur, Internal PU Coated Pipes Suplier in Lucknow, Internal PU Coated Pipes Suplier in Agra, Internal PU Coated Pipes Suplier in Varanasi, Internal PU Coated Pipes Suplier in Amritsar, Internal PU Coated Pipes Suplier in Chandigarh, Internal PU Coated Pipes Suplier in Mysuru (Mysore), Internal PU Coated Pipes Suplier in Udaipur, Internal PU Coated Pipes Suplier in Jodhpur, Internal PU Coated Pipes Suplier in Visakhapatnam, Internal PU Coated Pipes Suplier in Coimbatore, Internal PU Coated Pipes Suplier in Madurai, Internal PU Coated Pipes Suplier in Kochi, Internal PU Coated Pipes Suplier in Thiruvananthapuram, Internal PU Coated Pipes Suplier in Mangalore, Internal PU Coated Pipes Suplier in Nagpur, Internal PU Coated Pipes Suplier in Nashik, Internal PU Coated Pipes Suplier in Kolhapur, Internal PU Coated Pipes Suplier in Chandrapur, Internal PU Coated Pipes Suplier in Akola, Internal PU Coated Pipes Suplier in Vilayat, Internal PU Coated Pipes Suplier in Somnath, Internal PU Coated Pipes Suplier in Dahej, Internal PU Coated Pipes Suplier in Vadodara, Internal PU Coated Pipes Suplier in Narmada, Internal PU Coated Pipes Suplier in Surat, Internal PU Coated Pipes Suplier in Ankleshwar, Internal PU Coated Pipes Suplier in Navsari, Internal PU Coated Pipes Suplier in Valsad, Internal PU Coated Pipes Suplier in Rajpipla, Internal PU Coated Pipes Suplier in Veraval, Internal PU Coated Pipes Suplier inKovvur, Internal PU Coated Pipes Suplier in Andra Pradesh, Internal PU Coated Pipes Suplier inKarwar, Internal PU Coated Pipes Suplier in Karnataka, Internal PU Coated Pipes Suplier inKosamba, Internal PU Coated Pipes Suplier in Gujarat, Internal PU Coated Pipes Suplier in Vishakapatnam, Internal PU Coated Pipes Suplier in Shahad, Internal PU Coated Pipes Suplier in Pondicherry, Internal PU Coated Pipes Suplier in Kakkinada, Internal PU Coated Pipes Suplier in Andra Pradesh, Internal PU Coated Pipes Suplier in Nagda, Internal PU Coated Pipes Suplier in Madhya Pradesh, Internal PU Coated Pipes Suplier inHarihar, Internal PU Coated Pipes Suplier in Karnataka, Internal PU Coated Pipes Suplier in Tuticorin, Internal PU Coated Pipes Suplier in Tamilnadu, Internal PU Coated Pipes Suplier in Trivandrum, Internal PU Coated Pipes Suplier in KeralaKurnool, Internal PU Coated Pipes Suplier in Andra Pradesh, Internal PU Coated Pipes Suplier in Rourkela, Internal PU Coated Pipes Suplier in Hindupur, Internal PU Coated Pipes Suplier in Orissa, Internal PU Coated Pipes Suplier in Renukoot, Internal PU Coated Pipes Suplier in Uttar Pradesh, Internal PU Coated Pipes Suplier in Morbi, Internal PU Coated Pipes Suplier in Kerala , Internal PU Coated Pipes Suplier inHimachal, Internal PU Coated Pipes Suplier in Dehradun, Internal PU Coated Pipes Suplier in Visakhapatnam , Internal PU Coated Pipes Suplier inJamnagar, Internal PU Coated Pipes Suplier in Kozhikode, Internal PU Coated Pipes Suplier in Pondicherry, Internal PU Coated Pipes Suplier in Ludhiana, Internal PU Coated Pipes Suplier inLatur, Internal PU Coated Pipes Suplier in Nanded, Internal PU Coated Pipes Suplier in Vijaywada, Internal PU Coated Pipes Suplier in Alwar, Internal PU Coated Pipes Suplier in Bareilly, Internal PU Coated Pipes Suplier in Bikaner, Internal PU Coated Pipes Suplier in Andheri, Internal PU Coated Pipes Suplier in Marol, Internal PU Coated Pipes Suplier in Taloja, Internal PU Coated Pipes Suplier in Turbhe, Internal PU Coated Pipes Suplier in TTC (Thane-Belapur), Internal PU Coated Pipes Suplier in Pimpri-Chinchwad, Internal PU Coated Pipes Suplier in Chakan, Internal PU Coated Pipes Suplier in Talegaon, Internal PU Coated Pipes Suplier in Ranjangaon, Internal PU Coated Pipes Suplier in Jejuri, Internal PU Coated Pipes Suplier in Baramati, Internal PU Coated Pipes Suplier in Satpur, Internal PU Coated Pipes Suplier in Ambad, Internal PU Coated Pipes Suplier in Sinnar, Internal PU Coated Pipes Suplier in Igatpuri, Internal PU Coated Pipes Suplier in Shendra, Internal PU Coated Pipes Suplier in Waluj, Internal PU Coated Pipes Suplier in Chikalthana, Internal PU Coated Pipes Suplier in Paithan, Internal PU Coated Pipes Suplier in Hingna, Internal PU Coated Pipes Suplier in Butibori, Internal PU Coated Pipes Suplier in Kalmeshwar, Internal PU Coated Pipes Suplier in Umred, Internal PU Coated Pipes Suplier in Shiroli, Internal PU Coated Pipes Suplier in Kagal, Internal PU Coated Pipes Suplier in Gokul Shirgaon, Internal PU Coated Pipes Suplier in Akkalkot, Internal PU Coated Pipes Suplier in Chincholi, Internal PU Coated Pipes Suplier in Lote-Parshuram, Internal PU Coated Pipes Suplier in Dombivli, Internal PU Coated Pipes Suplier in Ambernath, Internal PU Coated Pipes Suplier in Mahad, Internal PU Coated Pipes Suplier in Roha, Internal PU Coated Pipes Suplier in Palghar, Internal PU Coated Pipes Suplier in Tarapur (Boisar) and for inder national
Countries we have supplied our products to
South Korea, Internal PU Coated Pipes Exporter in Africa, Internal PU Coated Pipes Exporter in Sri Lanka, Internal PU Coated Pipes Exporter in Syria, Internal PU Coated Pipes Exporter in Taiwan, Internal PU Coated Pipes Exporter in Tanzania, Internal PU Coated Pipes Exporter in Tajikistan, Internal PU Coated Pipes Exporter in Thailand, Internal PU Coated Pipes Exporter in Turkey, Internal PU Coated Pipes Exporter in Turkmenistan, Internal PU Coated Pipes Exporter in Ukraine, Internal PU Coated Pipes Exporter in United Kingdom, Internal PU Coated Pipes Exporter in Arab Emirates (UAE), Internal PU Coated Pipes Exporter in Uzbekistan, Internal PU Coated Pipes Exporter in Vietnam, Internal PU Coated Pipes Exporter in Yemen, Internal PU Coated Pipes Exporter in France, Internal PU Coated Pipes Exporter in Germany, Internal PU Coated Pipes Exporter in Greece, Internal PU Coated Pipes Exporter in Oman, Internal PU Coated Pipes Exporter in Colombia, Internal PU Coated Pipes Exporter in Portugal, Internal PU Coated Pipes Exporter in Japan, Internal PU Coated Pipes Exporter in Lithuania, Internal PU Coated Pipes Exporter in Macau, Internal PU Coated Pipes Exporter in Mongolia, Internal PU Coated Pipes Exporter in Qatar, Internal PU Coated Pipes Exporter in Ireland, Internal PU Coated Pipes Exporter in Malaysia, Internal PU Coated Pipes Exporter in Bangladesh, Internal PU Coated Pipes Exporter in Russia, Internal PU Coated Pipes Exporter in Iran, Internal PU Coated Pipes Exporter in Jordan, Internal PU Coated Pipes Exporter in Singapore, Internal PU Coated Pipes Exporter in Bulgaria, Internal PU Coated Pipes Exporter in Poland, Internal PU Coated Pipes Exporter in Denmark, Internal PU Coated Pipes Exporter in Nigeria, Internal PU Coated Pipes Exporter in Gambia, Internal PU Coated Pipes Exporter in Indonesia, Internal PU Coated Pipes Exporter in Finland, Internal PU Coated Pipes Exporter in Argentina, Internal PU Coated Pipes Exporter in Chile, Internal PU Coated Pipes Exporter in Spain, Internal PU Coated Pipes Exporter in Peru, Internal PU Coated Pipes Exporter in Kuwait, Internal PU Coated Pipes Exporter in India, Internal PU Coated Pipes Exporter in Saudi Arabia, Internal PU Coated Pipes Exporter in Slovakia, Internal PU Coated Pipes Exporter in Slovenia, Internal PU Coated Pipes Exporter in Sweden, Internal PU Coated Pipes Exporter in Switzerland, Internal PU Coated Pipes Exporter in Bahrain, Internal PU Coated Pipes Exporter in the Netherlands, Internal PU Coated Pipes Exporter in United Kingdom, Internal PU Coated Pipes Exporter in Mexico, Internal PU Coated Pipes Exporter in Bulgaria, Internal PU Coated Pipes Exporter in Spain, Internal PU Coated Pipes Exporter in France, Internal PU Coated Pipes Exporter in Germany, Internal PU Coated Pipes Exporter in Colombia, Internal PU Coated Pipes Exporter in Brazil, Internal PU Coated Pipes Exporter in Saudi Arabia, Internal PU Coated Pipes Exporter in Iraq, Internal PU Coated Pipes Exporter in Iran, Internal PU Coated Pipes Exporter in Sudan, Internal PU Coated Pipes Exporter in Libya, Internal PU Coated Pipes Exporter in Tanzania, Internal PU Coated Pipes Exporter in Nigeria, Internal PU Coated Pipes Exporter in New Zealand, Internal PU Coated Pipes Exporter in Paris, Internal PU Coated Pipes Exporter in Switzerland
