Manufacturer of PP Lined Pipes & HDPE Lined Pipes
- Manufacturer, Supplier, Exporter and Dealer of PP Lined Pipes and HDPE Lined Pipes.
- Our manufacturing facility is located in Pune, Maharashtra, India.
- Pipes are designed for high corrosion resistance and long service life.
- Suitable for chemical and industrial piping systems.
PP / HDPE Lined Pipe Products
Pipe Materials
- Mild Steel Pipes as per IS 1239 Medium / Heavy Duty up to 150 NB.
- Above 150 NB as per IS 3589 with 5 mm thickness.
- Carbon steel pipes ASTM A53 Gr.B or ASTM A106 Gr.B.
- ERW and seamless pipes available in sizes from 1" to 16".
- Other materials like API pipe, stainless steel and alloy steel are available on request.
Flange Specifications
- Flanges conforming to ANSI, BS10, DIN or other international standards.
- Available in Mild Steel, Carbon Steel and Stainless Steel.
- Standard flange types: Slip-on and Lap-joint.
- Special flanges can be provided as per client requirements.
PP Liner Specifications
The polymer resin meets ASTM standard specifications. Standard PP liners are natural white color, while colored liners are available on request.
Liner Thickness (Minimum)
| Nominal Pipe Size (Inch) |
Millimeter |
Liner Thickness (Inch) |
Liner Thickness (mm) |
| 1 | 25 | 0.150 | 3.8 |
| 1.5 | 40 | 0.150 | 3.8 |
| 2 | 50 | 0.177 | 4.5 |
| 3 | 80 | 0.177 | 4.5 |
| 4 | 100 | 0.209 | 5.3 |
| 6 | 150 | 0.240 | 6.1 |
| 8 | 200 | 0.283 | 7.2 |
| 10 | 250 | 0.283 | 7.2 |
| 12 | 300 | 0.283 | 7.2 |
Fitting Availability
- 90° Elbow
- 45° Elbow
- Reducing Elbow
- Equal Tee and Reducing Tee
- Instrument Tee
- Concentric and Eccentric Reducers
- Laterals and Cross fittings
- Special fittings available as per customer requirements
Testing & Inspection
- All lined pipes and fittings are subjected to 10–15 KV spark testing.
- Hydrostatic testing performed with clean water when required.
- Visual inspection for cracks, deformation and coating defects.
Storage & Handling
- Pipes should be stored in shaded areas on wooden supports.
- End protectors should remain in place until installation.
- Flange surfaces must be protected to avoid leakage.
- Avoid dropping or impacting lined pipes during handling.
PP (Polypropylene)
PP homopolymer offers excellent corrosion resistance, low moisture absorption and strong mechanical properties. It is typically used in pressure piping systems from 0°F (-16°C) to 225°F (107°C).
Lining Process
- Incoming lots of resin are analyzed in our Quality Assurance laboratory for conformance to established raw material specifications.
- The liner is processed under controlled conditions to a size somewhat larger than the I.D. of the steel housing into which it will be installed. It is then thoroughly inspected for conformance to design specifications. Next, the liner is subjected to a battery of quality tests designed to ensure liner integrity.
- The liner is then drawn through a sizing die at carefully controlled draw rates which results in a calculated reduction in the oustide diameter.
- A programmed heating cycle relaxes the liner inside the steel housing, resulting in a snug liner fit. Design allowances are incorporated in this procedure to eliminate undesirable stresses in the finished product.
- Both liner ends of the pipe spool are then flared. Temperature, time and pressure are carefully monitored.
- The finished pipe is then tested in accordance.
