Looleh Gostar Golpayegan Co. is among Iran’s first industrial producers to launch large-scale manufacturing of polymer pipes and fittings with up-to-date European technology. With more than three decades of experience, the brand is now a trusted reference across building services, municipal networks, agriculture, and industry. Established in 1993 (1372) with a 25,000 m² plant in Golpayegan Industrial Town, the company set new benchmarks for polyethylene, PVC-U, and U-PVC pipes by focusing from day one on prime virgin resins, rigorous quality control, standardized processes, and product-design innovation.
History of innovation and production expansion
1993–2001 (1372–1380) — First leap
• Commissioned the first polyethylene extruders in 20–125 mm diameters and obtained the Iran National Standard mark, in step with the rapid rise of rural water-supply projects.
2001–2011 (1380–1390) — Strategic diversification
• Added a second PE line up to 200 mm; launched 16 mm drip-irrigation pipes; invested in tooling for solvent-weld and push-fit fittings.
2011–Present (from 1390) — Complete polymer portfolio
• Started PVC-U PN16 pressure pipes up to 315 mm; developed U-PVC well casing, pool fittings, electrical and telecom conduits; implemented an Integrated Management System (IMS).
Technical and quality advantages of our pipes
Pure, stable formulation
• Only virgin resins, with no regrind. Result: uniform color, higher impact strength, and service life exceeding 50 years under standard operating conditions.
Natural corrosion resistance
• PVC-U and PE do not undergo electrochemical degradation in acidic, alkaline, or saline environments; no secondary protective coating required.
UV stability
• UV absorbers extend outdoor service life (irrigation, vents, gutters) and prevent surface chalking.
Wide operating envelope
• PE100 up to 25 bar; U-PVC PN16 pool pipes and fittings up to 16 bar; gravity building drainage operates reliably at zero hydrostatic pressure.
Quality assurance system
• Online wall-thickness and OD monitoring via laser profiler
• Long-term hydrostatic test (166 h) at 80 °C
• Charpy impact testing per ISO 3127 for low-temperature resistance
Application range
• Urban and rural water-distribution networks
• Gravity and pressurized wastewater systems
• Drip, sprinkler, and agricultural water conveyance
• Casing for deep and semi-deep wells
• Pools, spas, jacuzzis, and aquaculture installations
• Physical protection for power cables, fiber optics, and data lines
Table 1 – Technical specifications of selected Looleh Gostar Golpayegan products
| # | Product type | Material/Standard | Size (mm) | Working pressure (bar) | Use case |
|---|---|---|---|---|---|
| 1 | PE100 water-supply pipe | INSO 14427 | 16–400 | 4–25 | Potable water & irrigation |
| 2 | PE gas-distribution pipe | INSO 11233 | 25–250 | 12.5–20 | Medium & high-pressure gas lines |
| 3 | PVC-U building sewer pipe | INSO 9113 | 50–160 (6 m length) | Gravity | Wastewater & downpipes |
| 4 | U-PVC PN16 pressure pipe | ISO 1452 | 20–315 | up to 16 | Pools, treatment plants, industrial lines |
| 5 | PVC-U well casing | Custom | 110–200 | Static | Well sealing & casing |
| 6 | PVC electrical/telecom conduit | INSO 11215 | 20–50 | — | Cable routing & protection |
Certificates and accreditations
| Standard | Scope | Key benefit |
|---|---|---|
| ISO 9001:2015 | Quality management | Stable processes and minimized waste |
| ISO 14001 | Environment | Controlled environmental impact and energy use |
| ISO 45001 (formerly OHSAS) | Health & Safety | Safer workplaces and fewer incidents |
| CE marking | EU conformity | Access to international markets |
| ISO 17025 | Testing laboratory competence | Accurate in-house quality tests |
| BHRC (Iran) approval | Building sector | Confidence for supervising engineers on site |
Why choose Looleh Gostar Golpayegan for infrastructure and industry
Lifecycle efficiency — Durable materials, fast installation, no painting or anti-corrosion coating, and low weight versus metal simplify logistics and reduce maintenance needs.
Engineering support & field services — On-site experts for installation training, head-loss calculation, pressure-class selection, and troubleshooting.
Unmatched breadth — Pipes, fittings, U-PVC butterfly valves, drip tape, and accessories from one brand ensure compatibility.
Proven references — From urban metro lines to 10,000-hectare farms, landmark projects back the brand.
Note: Tamam Baha—as a trusted supplier of Looleh Gostar Golpayegan—offers the full range with guaranteed authenticity, extensive stock, prompt delivery, and technical consultation. It is not the brand’s sole distributor in the market.
