TAVINOX® PRESS — Fittings 316L
TAVINOX PRESS Reducing coupling (FxF)
The TAVINOX PRESS reducing coupling (FxF) is a straight reducing coupling with two press ends. Using the TAVINOX PRESS system, you can install pipework quickly, easily and cleanly. TAVINOX PRESS provides a complete pipework system suitable for every conceivable application.
- Includes a blue unpressed-joint indicator.
- Detection of unpressed joints via the Leak Detect system.
- The QR code on the fitting carries all the technical information.
Product
Technical parameters
| Code | Dimension | L (mm) | L1 (mm) | Type | EAN | Bag (pcs) | Box (pcs) |
|---|---|---|---|---|---|---|---|
| NA14FF.1815 | 18 x 15 mm | 62 | 30.5 | A | 8596683008485 | 10 | 250 |
| NA14FF.2215 | 22 x 15 mm | 66.5 | 37 | B | 8596683008515 | 10 | 120 |
| NA14FF.2218 | 22 x 18 mm | 66 | 34.5 | B | 8596683008546 | 10 | 120 |
| NA14FF.2815 | 28 x 15 mm | 73 | 43.5 | B | 8596683008577 | 5 | 100 |
| NA14FF.2818 | 28 x 18 mm | 73 | 41.5 | B | 8596683008607 | 5 | 100 |
| NA14FF.2822 * | 28 x 22 mm | 68.5 | 33.5 | B | 8596683008638 | 5 | 100 |
| NA14FF.3528 * | 35 x 28 mm | 75.5 | 40.5 | A | 8596683008669 | 5 | 60 |
| NA14FF.4235 * | 42 x 35 mm | 77 | 38 | A | 8596683008690 | 1 | 30 |
| NA14FF.5442 * | 54 x 42 mm | 96.5 | 49 | A | 8596683008720 | 1 | 20 |
* Products with PAVUS certification for fire protection pipework (DN20–DN100).
Technical drawing
The TAVINOX PRESS stainless steel system contributes to sustainable construction. Flameless pressing means zero CO₂ emissions directly on site, lower energy consumption during installation and no fire risk.
0
CO₂ emissions from pressing
100%
Recyclable material
EPD
Environmental declaration
Verified EPD publicly available
Our Environmental Product Declaration (EPD) is independently verified and publicly listed in the EPD database of the Czech Republic on the portal of the Czech Ministry of the Environment.
The complete certificates, declarations of conformity and other documents are available after signing in to the website.
Stock availability and price list
| Status | Code | Dimension | EAN | Weight | Price |
|---|---|---|---|---|---|
| In stock | NA14FF.1815 | 18 x 15 mm | 8596683008485 | 0,046 kg | 142 CZK |
| In stock | NA14FF.2215 | 22 x 15 mm | 8596683008515 | 0,051 kg | 169 CZK |
| In stock | NA14FF.2218 | 22 x 18 mm | 8596683008546 | 0,061 kg | 167 CZK |
| In stock | NA14FF.2815 | 28 x 15 mm | 8596683008577 | 0,062 kg | 216 CZK |
| In stock | NA14FF.2818 | 28 x 18 mm | 8596683008607 | 0,069 kg | 218 CZK |
| In stock | NA14FF.2822 | 28 x 22 mm | 8596683008638 | 0,076 kg | 187 CZK |
| In stock | NA14FF.3528 | 35 x 28 mm | 8596683008669 | 0,09 kg | 307 CZK |
| In stock | NA14FF.4235 | 42 x 35 mm | 8596683008690 | 0,135 kg | 427 CZK |
| In stock | NA14FF.5442 | 54 x 42 mm | 8596683008720 | 0,203 kg | 633 CZK |
All prices are exclusive of VAT.
Datasheets for download
Certificates and approvals
DVGW certificate
German Technical and Scientific Association for Gas and Water
ITC certificate
Institute for Testing and Certification, Zlín
PAVUS certificate
Fire testing and certification
EPD declaration
Environmental Product Declaration
Declaration of conformity – drinking water
Conformity with drinking water requirements
ISO 9001 / ISO 14001
Quality and environmental management system
Technical parameters and facts
The TAVINOX PRESS Reducing coupling (FxF) is made from austenitic stainless steel, grade AISI 316L (1.4404), with 16.5–18.5% chromium and 10–13% nickel. The maximum operating pressure is 16 bar (PN 16), over a temperature range of −35 °C to +110 °C with an EPDM seal and up to +200 °C with an FKM seal. Product group NA14FF covers 9 sizes: 18 x 15–54 x 42 mm, which corresponds to DN15–DN50 in ISO nominal sizes. The coefficient of thermal expansion of stainless steel tube is α = 0.0165 mm/m·K — on a 50 m run at ΔT = 50 K this means 41 mm of expansion, which has to be taken up by a U-shaped expansion loop or by a fixed point. The DVGW and PAVUS certifications cover use in the Czech Republic, Slovakia, Austria, Germany and Poland. Selected sizes are certified for pipework in fixed fire-fighting installations (sprinkler systems). A press joint on the TAVINOX PRESS Reducing coupling (FxF) (M profile) takes about 5 minutes including tube preparation, compared with 25–30 minutes for a TIG-welded joint. Pressing needs no electricity or gas supply while the joint is being made (cordless machine, 19–65 kN), so the energy saved over 100 joints is about 300 kWh compared with a 6 kW welding set. That is the equivalent of about 150 kg of CO₂.
Frequently Asked Questions
What is the TAVINOX PRESS Reducing coupling (FxF)?
The TAVINOX PRESS reducing coupling (FxF) is a straight reducing coupling with two press ends. Using the TAVINOX PRESS system, you can install pipework quickly, easily and cleanly. TAVINOX PRESS provides a complete pipework system suitable for every conceivable application.
What material is the TAVINOX PRESS Reducing coupling (FxF) made from?
The TAVINOX PRESS Reducing coupling (FxF) is made from stainless steel, grade AISI 316L (1.4404). Grade 316L (1.4404) resists chloride corrosion and is ideal for drinking water, seawater, the chemical industry and food processing. The service life of the stainless steel press system exceeds 50 years when the design operating conditions are observed.
What is the maximum pressure and temperature for the TAVINOX PRESS Reducing coupling (FxF)?
The maximum operating pressure of the TAVINOX PRESS Reducing coupling (FxF) is 16 bar (PN 16). With an EPDM seal the temperature range is −35 °C to +110 °C (drinking water, heating, cooling). For higher temperatures you can use an FKM seal (−20 °C to +160 °C, briefly up to +200 °C, process and solar thermal pipework).
What certifications does the TAVINOX PRESS Reducing coupling (FxF) have?
The TAVINOX PRESS Reducing coupling (FxF) holds the following certifications: DVGW. Selected sizes are additionally certified for fire protection pipework (PAVUS, EN 12845) — ideal for fixed fire-fighting installations and sprinkler systems. The products comply with EN 10312. The certification covers use in drinking water pipework under Czech Decree No. 252/2004 Coll.
Which press profile does the TAVINOX PRESS Reducing coupling (FxF) use?
The TAVINOX PRESS Reducing coupling (FxF) uses the M press profile. The M profile is the established standard in the Czech Republic and Slovakia — compatible with Zupper, Klauke, REMS, Novopress, Rothenberger and Milwaukee press jaws. Our range includes the cordless Zupper press machines BLM-1930 (OD 15–28 mm), ED-1550 (OD 15–54 mm) and ED-60100 (OD 76.1–108 mm) — choose the machine according to the size of the fitting.
Which sizes of the TAVINOX PRESS Reducing coupling (FxF) are available?
The range covers 9 sizes: 18 x 15–54 x 42 mm. We keep them in stock in the Czech Republic as standard — for project planning, the availability of every size is shown directly on this page.
Buy online from our partners
TAVINOX is sold exclusively through wholesale and retail partners. Here are their online shops — you order directly from them. (TAVINOX PRESS press fittings)
From each of these partners you buy the original TAVINOX system with all certifications and the manufacturer's warranty. All sales points and map →
Have a technical question?
A TAVINOX technician will personally answer your questions about TAVINOX PRESS fittings, tubes or system design.