
Manufacturer of tube fittings, valves and integrated piping systems for high-pressure and industrial applications
FITOK Incorporated
Shenzhen · Wuhan · Offenbach am MainNew on Amplifa
About FITOK
FITOK is a manufacturer of tube fittings, valves, manifolds, filters, hoses, quick couplings, regulators and integrated piping systems. The product range includes, among others, twin-ferrule and single-ferrule tube fittings, medium-pressure and high-pressure fittings, weld fittings, face-seal fittings, ball valves, needle, diaphragm, check, shut-off and relief valves as well as vacuum fittings. Manufacturing is mainly in stainless steel (316, 316L, 304); sealing and other materials include PEEK, PTFE and FKM. FITOK is certified with EC type approvals according to EC 79/2009 for hydrogen components (6D and 20D series) as well as ECE-R110 approvals for CNG/LNG components such as valves and filters. Further approvals exist according to ASTM F1387 and by the American Bureau of Shipping (ABS) for marine piping systems. The main delivery purposes lie in hydrogen technology, CNG/LNG applications, the marine and offshore industry, the subsea sector as well as semiconductor and vacuum technology. Locations are situated in Shenzhen (headquarters), Wuhan (manufacturing) and Offenbach am Main (FITOK GmbH, Germany).
- Site
- Offenbach am Main
- Processes
- Manufacture of tube fittings (double/single-ferrule fittings), Manufacture of weld fittings (Weld Fittings), Manufacture of valves (ball valves, needle valves, diaphragm valves, check valves etc.), Manufacture of fittings for hydrogen/CNG/LNG applications (EC/ECE approved), Integrated Systems (pre-fabricated piping systems), Quick Order / Inquiry List ordering process
- Materials
- 316SS (stainless steel 316), PEEK, PTFE, FKM, 304 stainless steel, 316L stainless steel, Stainless steel 316, Stainless steel 316L
- Certificates
- EC type approval hydrogen components (Reg. EC 79/2009 / EU 406/2010), 6D, EC type approval hydrogen components (Reg. EC 79/2009 / EU 406/2010), 20D, ECE R110 CNG/LNG component – manually operated valve (Ball Valve BXSS-XXX), ECE R110 CNG/LNG component – check valve (CHSS-XXX-R110), ECE R110 CNG/LNG component – CNG filter (FTSS-XXX-XX-R110), ASTM F1387 third-party certification (6D Series Tube Fittings), ABS type approval – Piping System, Mechanical Joint (Bite Type Compression, EC 79/2009 (hydrogen components), ECE R110 (CNG/LNG components), ASTM F1387, ABS type approval
- Industries
- Hydrogen technology (H2 vehicles/components), CNG/LNG (natural gas vehicles), Marine & Offshore, Subsea, Semiconductor/Vacuum, Alternative Fuels
- 01
CNC machining of components
- 02
Assembly of fittings and valves
- 03
Testing and approval tests (EC 79, ECE R110, ASTM F1387)
- 04
Fabrication of integrated piping systems
- 05
Worldwide sales
Materials
Stainless steel 316
Main material for tube fittings, valves and CNG/LNG components up to 26 MPa working pressure.
Stainless steel 316L
For marine piping systems according to ABS type approval (with molybdenum limit ≥ 2.5 % for seawater applications).
Stainless steel 304
Used in marine piping systems according to ABS type approval.
PEEK
Sealing material in valves for CNG/LNG and industrial applications.
PTFE
Sealing material in valves for CNG/LNG and industrial applications.
FKM (fluoroelastomer)
O-ring and sealing material in check valves and valves.
Locations

Shenzhen
CNHeadquarters / manufacturer
- Materials
- 316SS, PEEK, PTFE, FKM

Wuhan
CNManufacturing site (Yangluo Economic Development Zone, Xinzhou District)
- Materials
- 316SS

Offenbach am Main
DEManufacturing/site FITOK GmbH (Sprendlinger Landstr. 115)
- Materials
- 316SS
Products




Inside the production







Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacture of tube fittings (double/single-ferrule fittings)Assembly | – | – | – | – | Stainless steel |
| Manufacture of weld fittings (Weld Fittings)Joining | – | – | – | – | 316SS |
| Manufacture of valves (ball valves, needle valves, diaphragm valves, check valves etc.)Assembly | – | – | – | – | 316SS, PEEK, PTFE, FKM |
| Manufacture of fittings for hydrogen/CNG/LNG applications (EC/ECE approved)Testing | – | – | – | – | 316SS, PEEK, PTFE, FKM |
Additional services
Quality & Approvals
FITOK carries out approval and product tests according to EC 79/2009, ECE R110, ASTM F1387 and ABS; the 6D series fittings are fully certified by a third party according to ASTM F1387 (including pulse, burst and vibration tests).
| Evidence | Shenzhen | Wuhan | Offenbach am Main |
|---|---|---|---|
| EC 79/2009 (hydrogen components) | |||
| ECE R110 (CNG/LNG components) | |||
| ASTM F1387 | |||
| ABS type approval |
History
- 2020
EC type approval e4*79/2009*406/2010*0037*00 for the 20D Series Tube Fittings (70 MPa) according to EC 79/2009; ECE-R110 approvals for ball valves, check valves and CNG filters by the Kraftfahrt-Bundesamt (German Federal Motor Transport Authority).
- 2023
Extension of the EC type approval e4*79/2009*406/2010*0028*01 for the 6D Series Tube Fittings (35 MPa), test report dated 09.06.2023 (Kiwa Nederland B.V.).
- 2024
Third-party certification of the 6D Series Tube Fittings according to ASTM F1387 (January 2024, R01).