Iran Pipe is a specialist brand within Bist Bespar Espadana Industrial Group. The group began operations in 2006 in Mobarakeh Industrial Town, Isfahan, focused on polymer engineering and production automation. After succeeding with single-layer polymer pipes, it expanded in 2015 into five-layer composite pipes under the Iran Pipe name. Combining skilled talent, premium raw materials, and advanced machinery, Iran Pipe has earned strong presence in construction and industrial projects. With national-standard compliance, rigorous quality control testing, and long warranties (up to 20 years), it is a trusted choice for MEP contractors.
Iran Pipe Five-Layer Technology
The pipe structure consists of two hygienic polymer layers (inner and outer), a continuous aluminum layer in the middle, and two layers of specialty adhesive. This design delivers:
- High mechanical strength, reduced linear expansion, and dimensional stability.
- An oxygen barrier that helps protect downstream metal equipment from corrosion.
- A smooth inner surface for stable flow and resistance to scaling.
PEX-AL-PEX vs. PERT-AL-PERT
Both are five-layer constructions; the inner/outer polymer differs. PEX (cross-linked polyethylene) prioritizes higher temperature resistance and thermal stability. PERT (polyethylene of raised temperature) offers greater flexibility and easier installation. Choose based on operating conditions, service temperature, and installer preference.
Comparison of Iran Pipe Common Types
| Parameter | PEX-AL-PEX | PERT-AL-PERT | Notes |
|---|---|---|---|
| Typical operating temperature | Up to 90 °C (peak 95 °C) | Up to 85–90 °C | Select precisely per each series’ technical label |
| Working pressure (typical) | Up to 16 bar (at lower temperatures) | Up to 16 bar (at lower temperatures) | Pressure class decreases as temperature rises |
| Flexibility | Good | Very good | Smaller bend radius with PERT |
| Linear expansion | Very low | Very low | Thanks to the aluminum layer |
| Key applications | Underfloor heating, domestic hot water, radiators | Underfloor heating, indoor water supply | Both suitable for potable water |
Product Range: Pipes, Fittings & Manifolds
Iran Pipe delivers a complete five-layer solution so installers can build an integrated system.
Press fittings
Metal-sleeve (brass) press fittings with standard jaws provide a permanent, reliable seal. Benefits:
- Fast installation; no periodic re-tightening.
- Consistent joint quality; reduced human error.
- Ideal for concealed, hard-to-access locations.
Compression (coupling) fittings
A practical choice for quick repairs or points that may require future disassembly:
- No press tool required.
- Can be assembled/disassembled when needed.
- Sealed with O-rings resistant to wear and aging.
Manifolds & accessories
Multi-outlet brass manifolds, with or without individual valves, simplify circuit control in underfloor heating and water distribution. Durable brass bodies with protective finishing keep pressure loss low and extend service life.
Build Quality, Materials & QC
Careful selection of hygienic polymers, thickness-controlled aluminum, and high-adhesion adhesives—combined with laser/ultrasonic aluminum welding—ensures uniform, durable layer bonding. Factory tests include long-term hydrostatic pressure, peel (layer separation), oxygen permeability, and dimensional/ovality checks to deliver products aligned with current standards.
Benefits for Owners & Installers
- Long service life: Aluminum barrier limits oxygen ingress and corrosion; smooth bore reduces scaling.
- Pressure & temperature capability: Operation up to 16 bar (at lower temperatures) and hot-water service up to 90 °C when designed per tables.
- Minimal thermal expansion: Less noise, fewer clamps, cleaner routing.
- Clean, speedy installation: Good bendability and shape retention reduce fittings and save time.
- Water hygiene: Hygienic polymer and oxygen barrier help preserve taste, odor, and color; discourage bio-growth.
- Energy efficiency: Controlled thermal conductivity and smooth walls lower heat loss and pressure drop—especially valuable in underfloor heating.
Real-World Applications
- Residential & commercial buildings: Cold/hot water, radiator branches, underfloor heating, indoor risers.
- Healthcare & education: Hygienic water transfer with low secondary contamination risk; manifold-controlled circuits.
- Food & pharmaceutical: Process hot/industrial water where cleanliness and non-reactivity matter.
- Compressed air & special circuits: Low weight, quick install, and no rust (within stated pressure/temperature limits).
Sizing, Flow & Pressure Class – How to Choose
Correct nominal diameter and pipe type determine performance and service life. Focus on required flow, allowable pressure drop, and service temperature. Common building diameters: 16, 20, 25, and 32 mm.
Quick Size Selection (typical design values)
| Example application | Suggested diameter (mm) | Approx. flow (L/min) | Max branch length without pump boost* | Design note |
|---|---|---|---|---|
| Single point of use | 16 | 6–8 | 15–20 m | Best for short branches |
| Apartment 75–90 m² | 20 | 15–20 | 25–35 m | Ring or branch layout |
| Small riser up to 4 units | 25 | 25–35 | 30–40 m | Watch total pressure drop |
| Large unit/commercial inlet | 32 | 35–55 | 35–50 m | Prefer manifold distribution |
* Depends on execution quality, number of fittings, and internal roughness.
Pro Installation Notes
- Bending & radius: Use a bending spring/tool; typical minimum bend radius ≈ 5× OD. Tight bends below the limit reduce service life.
- Clamp spacing: ~50–60 cm for 16 mm; 60–70 cm for 20 mm; 80–100 cm for 25–32 mm. Use shorter spacing in suspended ceilings.
- Cutting & calibration: Make square cuts with proper shears; chamfer/calibrate before assembly to protect O-rings/sleeves.
- Standard pressing: Use the jaw profile recommended by the manufacturer (U/TH/H…), with calibrated force and a single, uniform press.
- Embedding lines: Apply suitable covering; pass through acoustic/thermal insulation; avoid direct contact with fresh alkaline materials.
- Pressure test: Perform staged testing and hold at design pressure per instructions; check for leaks before final covering.
Warranty, Service & Technical Documentation
Pipes and fittings come with long warranties (up to 20 years). Warranty requires following installation guidelines, using standard tools, and keeping project documentation (drawings, material list, pressure-test protocol). Retain carton batch labels for traceability.
Why Iran Pipe Excels in Underfloor Heating
Low thermal expansion from the aluminum layer, low pressure loss from smooth interiors, high flexibility for loop layout, and compatibility with multi-circuit manifolds make Iran Pipe ideal for underfloor systems—delivering even heat distribution, quicker response, and simpler maintenance.
Professional Purchase Checklist
- Define loads per space and the capacity of heat/cooling source.
- Decide the layout strategy (manifold or branch) and route planning before ordering.
- Choose pipe type (PEX-AL-PEX or PERT-AL-PERT) based on service temperature.
- Estimate total length with a sensible contingency (5–10%).
- Select the predominant fitting type (press or compression) and prepare tools.
- Choose manifolds with suitable outlets and flow meters for the loops.
- Plan pressure testing and final handover to the client.
Market Availability
Iran Pipe products are available through specialized HVAC distributors. For system integrity, select pipe, fittings, and manifolds from one brand, and ensure product authenticity, valid warranties, and staged supply throughout the project. As an authorized and knowledgeable distributor, Tamam Baha offers the full Iran Pipe five-layer range with technical guidance—from choosing pipe type and diameter to fitting style and manifolds aligned with your drawings—while verifying authenticity and batch suitability for your site.
