VOG Iran Bi-Hemta entered the market in 1989 (1368 SH) with an operating license from the Ministry of Industry & Mines. From day one, the company focused on localizing foundry know-how and precision machining—a mission now realized in a facility of 30,000+ m² with automated production lines.
Production Capacity, Infrastructure & Technology
At the Karaj plant, resin-sand mixers, induction furnaces for special alloys, and fully automated epoxy/FBE coating lines work in tandem to deliver cast-iron and steel products in PN10–PN40 with uniform thickness and strong adhesion. The in-house pattern shop enables reverse engineering and continuous optimization of complex parts.
International Certifications & Standards
Commitment to safety, environment, and quality is documented through up-to-date international certifications.
| # | Standard / Approval | Scope | Issuing Body |
|---|---|---|---|
| 1 | ISO 9001:2015 | Quality Management System | TÜV International |
| 2 | ISO 14001:2015 | Environmental Management | TÜV International |
| 3 | ISO 45001:2018 | Occupational Health & Safety | TÜV International |
| 4 | Integrated Management System (IMS) | Quality, Safety, Environment | Ministry of Industry, Mine & Trade (Iran) / TÜV |
| 5 | Mandatory Standard License | All ductile-iron valves | National Standard Organization of Iran |
| 6 | Ministry of Agriculture Approval | Irrigation equipment | Ministry of Agriculture Jihad (Iran) |
Additional recognitions: Certificate of Appreciation from the Ministry of Energy (2000), Top Manufacturer ranking (2013), and Outstanding Entrepreneur (2014)—reinforcing trust among infrastructure industries.
Multi-Layer Quality Control System
A metallography lab with optical microscopes and a digital hardness tester verifies melt microstructure and mechanical properties before molding. XRF analysis and hydrostatic testing up to 1.5× rated pressure validate every valve. Final coating is electrostatic powder; a 20 kV holiday test and Eddy-Current thickness measurement ensure corrosion resistance through salt-spray cycles.
Product Range & Engineering Advantages
VOG Iran covers ½–40 in., in full-bore or resilient-seated designs. Components are engineered for fast replacement without special tools.
| Product Group | Common Sizes (in) | Working Pressure (PN) | Target Industry | Highlight |
|---|---|---|---|---|
| Gate Valve | ½ – 40 | 10 – 40 | Municipal water, crude oil | Fully encapsulated wedge with NBR coating |
| Swing Check Valve | 2 – 24 | 10 – 25 | Refineries, petrochemicals | Very low pressure drop |
| Underground Fire Hydrant | 2½ – 4 | 16 | Urban firefighting | Ductile-iron body with FBE coating |
| Y-Strainer | 1 – 12 | 10 – 40 | Industrial steam, condensate | Washable stainless 304 screen |
| Pressure-Reducing Valve | 2 – 8 | 16 | Water distribution networks | Chlorine-resistant EPDM diaphragm |
| Dismantling Joint | 3 – 24 | 10 – 25 | Steel & PE pipelines | Length adjustment up to 50 mm |
Flagship Projects & Recent Innovations
- Built 32 units of 20-inch, ASME Class 2500 gate valves for the Esfahan Refinery expansion, meeting 170-bar sealing requirements—previously imported from Europe.
- Developed an epoxy–ceramic hybrid coating for Bushehr desalination valves, resisting chlorinated cycles at 75 °C.
- Implemented QR-based traceability on valve bodies for instant access to test history and technical manuals.
Warranty, After-Sales & Technical Support
All valves and flanges carry a 3-year unconditional warranty and a 10-year spare-parts commitment. VOG Iran’s technical team provides site visits, on-site performance tests, and operator training—proven in Lorestan ABFA water projects and the IGAT-12 gas pipeline.
Sales Partnership with Tamam Baha
As a non-exclusive sales partner, Tamam Baha supplies VOG Iran products nationwide with guaranteed authenticity, leveraging its broad distribution network to keep projects stocked with standard-compliant valves and original parts.
