About us
Made for water. Since 2005.
Star Water Technology develops and manufactures high-performance UPVC valves and fittings in İzmir under its internationally registered brand, FITVALF.
Our story
Star Water Technology is a recognised leader in the production of high-performance UPVC pipe fittings and valves.
Our entry into the plastic injection moulding industry began in 2003. By 2005, with the support and expertise of our parent company GEMAŞ Genel Mühendislik AŞ, we launched the production of our signature UPVC (unplasticised polyvinyl chloride) product line.
From our headquarters in İzmir we develop and manufacture products under the FITVALF brand, known for quality and pioneering design, notably our patented ball valves. Our entire production process is certified under the ISO 9001 quality management system.
Quality & intellectual property
Certificates & registrations
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ISO 9001:2015Quality management system
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ISO 14001:2015Environmental management system
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ISO 45001:2018Occupational health & safety management
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TSE Certificate of ConformityTS EN ISO 1452-3 · PVC-U fittings
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SGS RoHS Test ReportRoHS Directive 2002/95/EC compliance
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German Utility ModelDPMA No. 20 2015 105 920 · ball valve handle
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WIPO Hague Design RegistrationDM/088 552 · PVC ball valve
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WIPO Madrid Trademark RegistrationNo. 1 233 454 · fitvalf® international trademark
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TÜRKPATENT Trademark RenewalNo. 2013 10614 · fitvalf® trademark
Our journey
From injection moulding to world markets.
Into injection moulding
Star Water Technology enters the plastic injection moulding industry.
UPVC production
With the support of GEMAŞ Genel Mühendislik AŞ, production of the signature UPVC line begins.
Fitvalf Industrial Water Technologies
A dedicated company is founded for sales, marketing and logistics in high-pressure water markets.
Four continents
FITVALF products are delivered to more than 40 countries across four continents.
Why UPVC
Why UPVC? The Fitvalf advantage.
Our commitment to UPVC is driven by its exceptional characteristics, which meet the demands of high-pressure fluid transfer systems across many sectors.
Superior quality and strength
UPVC offers high mechanical strength and robust quality, ensuring better long-term performance and reliability than many alternative plastics.
Specialised expertise
We work in the specialised niche of high-pressure UPVC fittings and valves, a focus that ensures deep expertise and consistent quality.
Critical sector integration
Our components are essential across high-pressure water markets, including agricultural irrigation, industrial water treatment and general plumbing and construction.
GEMAŞ Group
Focused companies, one group.
To ensure specialised focus and optimal service across all market segments, the GEMAŞ Group has structured its sales, marketing and logistics operations into dedicated companies.
Star Water Technology
Manufacturing excellence and product development under the FITVALF brand, from the integrated facility in İzmir.
GEMAŞ Pazarlama Lojistik AŞ
Sales, marketing and logistics company dedicated to global swimming pool markets, and main distributor of FITVALF products in this sector.
Fitvalf Industrial Water Technologies
Sales, marketing and logistics for FITVALF products in other high-pressure water markets:
- Agricultural irrigation & greenhouses
- Industrial water treatment
- Aquaculture
- Chemical processing
- Food industry
- Infrastructure networks
From İzmir to your project.
Explore our export markets or talk to our team about your application.