About
Engineering discipline in gas fire suppression
GYS (Gazlı Yangın Söndürme) has been the engineering brand focused on gas fire suppression systems under Ayso Teknik Tesisat Elemanları Sanayi ve Ticaret Limited Şirketi since 2019. We run the full lifecycle of a system ourselves — site survey, engineering calculation, material supply, installation and commissioning, periodic maintenance, hydrostatic testing and refilling.
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Phone+90 212 945 7465WhatsApp+90 542 144 10 42E-mailinfo@gazliyanginsondurme.comWho we are
GYS is the gas fire suppression specialist affiliate of Ayso Teknik, which operates across fire pumps, water mist, foam suppression, sprinkler systems and passive fire protection. This structure lets us draw on a broad base of fire safety engineering experience while staying deeply specialized in gas suppression.
Our technology approach
For inert gas systems (Inergen/IG-541, Argonite/IG-55) we use technology supplied by Fire Eater A/S. For CO2, FM-200 and FK-5-1-12 (Novec 1230) clean agent systems, we source certified products that meet the relevant standards (NFPA 2001, ISO 14520, EN 15004, TPED/PED/CE, UL/FM/LPCB) for the project at hand. Read more about our relationship with Fire Eater on our Technology page.
Our service footprint
With our Turkey-based engineering and field team, we deliver engineering, installation, commissioning, periodic maintenance and technical service for gas fire suppression systems on projects worldwide. We have a particularly strong field presence in our home region, but our service scope is not limited to any fixed list of countries — the exact scope and logistics for each project are worked out together during the site survey.
Our Values
- Excellence — rigor from engineering calculation to workmanship.
- Customer Focus — solutions built on real project needs.
- Safety — design that prioritizes people and equipment.
- Integrity — verifiable information, realistic quotes.
- Innovation — staying current with technology and standards.
- Valuing Our People — a trained, experienced field and engineering team.
Our experience and certifications
Completed projects across 7 sectors, including aviation, energy, industry, logistics, hospitality and defence. See our references.
Our quality, environmental, occupational health and safety and customer satisfaction management certificates, issued in November 2025 after independent audits by BELCERT International Certification, are on the Certifications page.
We design to NFPA 2001, ISO 14520 and EN 15004 and look for independent approvals such as UL, FM, LPCB and VdS on components. More in our Knowledge Center.
Contact Details
Cihangir Mah. Şehit Jan. Kom. Er Zafer Kızıltaş Sok. No:9/1, Avcılar/İstanbul 34310, Türkiye
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