Mirab at a Glance
Founded in 1979 by engineer Morteza Tavvaj in a 350 m² workshop near Azari Square, Tehran, Mirab began with cast parts for railways, diesel engines, and pump makers—and never stopped scaling.
- 1990s: Entry into the ductile-iron valve market and nationwide sales network.
- 2007: Shamsabad expansion (200,000 m²): integrated foundry, machining, and assembly.
- Today: 5,000 t/year casting capacity; alloys from gray iron to duplex stainless steel; shipments to 40+ countries across four continents.
Manufacturing Technology
From smart foundry controls to online hydrostatic testing, the Shamsabad plant uses 4,500 kW induction furnaces, robotic molding, and a powder-epoxy line ensuring uniform, 250 μm coating thickness. A pressure test unit up to 64 bar checks each valve for leakage and mechanical integrity. An IMS (ISO 9001, ISO 14001, ISO 45001) monitors production and safety data in real time.
International Certificates & Approvals
| # | Issuer | Standard/Code | Scope |
|---|---|---|---|
| 1 | Lloyd’s Register (UK) | Marine Type Approval | Seawater transfer lines & desalination |
| 2 | DVGW (Germany) | W 270 & KTW | Central European drinking-water networks |
| 3 | IMQ (Italy) | ISO 9001:2015 | Quality management |
| 4 | IMQ (Italy) | ISO 14001:2015 | Environmental management |
| 5 | IMQ (Italy) | ISO 45001:2018 | Occupational health & safety |
Product Portfolio
- Gate Valve (Ductile Iron): DN 40–1200, PN 10–25. Fully rubber-encapsulated wedge with enhanced bonding to ductile core; ideal for municipal water distribution and booster stations.
- Swing/NRV Check Valve: 304 SS hinge pin and bronze bushings; minimal pressure drop and reliable backflow prevention over frequent cycles.
- Globe/Needle Control Valve: Stainless-steel disc, hard-faced seat for precise flow control down to 0.1%; suitable for steam lines in food and petrochemical plants.
- Y-Strainer: One-piece stainless mesh 40–80 mesh, ¾” blow-down plug; protects pumps and sensitive equipment from particles ≥ 0.5 mm.
- Butterfly Valve (CI/DI): Wafer and double-flanged designs, NBR/EPDM lining with low breakaway torque; electric or pneumatic actuators up to DN 1600.
Key Comparison of Core Products
| Product | DN | PN | Body Material | Application |
|---|---|---|---|---|
| Gate Valve | 40–1200 | 10–25 | Ductile iron GGG-40 | Water transmission & distribution |
| Check Valve | 50–800 | 10–16 | Gray iron GG-25 | Wastewater pump stations |
| Globe/Needle | 25–300 | 16–40 | Carbon steel ASTM A216 | Steam, thermal oil |
| Y-Strainer | 40–600 | 10–25 | Ductile iron | Pre-filtration |
| Butterfly Valve | 50–1600 | 10–25 | Ductile iron | Dams & treatment plants |
Technical & Economic Advantages
- Food-grade, WRAS-compliant epoxy for permanent contact with potable water.
- 30-year service life indicated by internal accelerated tests with 250,000 open/close cycles.
- Standardized spare parts compatible with widely used European models—shorter maintenance downtime.
- Optimized weight & integrated flanges for easier handling.
- Reverse-engineering services to localize special parts for power, oil & gas industries.
Global Presence
With sales offices in Istanbul, Dubai, and São Paulo and established sea logistics, Mirab exports 20–50% of annual capacity. Designs comply with EN 593, BS 5163, and AWWA C509, enabling use in projects such as:
- Mansuriya Water Transfer, Iraq (DN 1400)
- Madinat Al-Abbas Treatment Plant, Egypt (Butterfly DN 900)
- San Luis Power Plant Cooling, Argentina (Gate Valve PN 25)
Sustainability & Social Responsibility
Mirab exceeds regulatory requirements by recycling foundry sand, using eco-friendly resins, and installing dust collectors on shot-blast lines. HSE training has reduced incident rates by 40% versus industry averages, and 2,500 trees have been planted around Shamsabad Industrial Town.
Authorized Sales Channel
As an authorized seller, Tamambaha offers Mirab’s complete portfolio with authenticity guarantees, technical support, and fast nationwide delivery in Iran. Other authorized channels remain active.
