TAVINOX GROOVE · EPDM
TAVINOX GROOVE Coupling gasket
- TGS rolled groove — fast, demountable installation without welding
- EPDM elastomer stainless steel
- Nominal pressure PN 16, drinking water up to 80 °C, other media (e.g. heating) up to 110 °C, EPDM gasket

Product
Technical parameters
| Code | DN | OD (mm) | EAN | Bag (pcs) | Box (pcs) |
|---|---|---|---|---|---|
| GOK01.125 | DN125 | 133 | 8596683017821 | 4 | 20 |
| GOK01.150 | DN150 | 159 | 8596683017852 | 4 | 20 |
| GOK01.200 | DN200 | 219 | 8596683017883 | 2 | 10 |
| GOK01.250 | DN250 | 273 | 8596683017913 | 1 | 10 |
| GOK01.300 | DN300 | 323.9 | 8596683017944 | 1 | 5 |
Prices and availability on request
The TAVINOX GROOVE system is available through our network of wholesale partners across the Czech Republic and Slovakia. We will be happy to give you current prices and availability.
Where to buy TAVINOXDatasheets
Certificates and approvals
CCZ certificate
Certification for pipework
ITC certificate
Institute for Testing and Certification, Zlín
ISO 9001
Quality management system of the importer CZECH STYLE, spol. s r.o.
Frequently asked questions about GOK01
What material is TAVINOX GROOVE GOK01 made of?
GOK01 is an EPDM elastomer coupling gasket for TAVINOX GROOVE grooved joints with the TGS rolled groove.
What sizes is TAVINOX GROOVE GOK01 made in?
5 variants for DN125, DN150, DN200, DN250 and DN300 (outside diameter 133, 159, 219, 273 and 323.9 mm).
What is the nominal pressure of TAVINOX GROOVE GOK01?
Nominal pressure 1.6 MPa (PN 16); gasket: EPDM elastomer; groove system: TGS — rolled groove.
Up to what temperature can TAVINOX GROOVE GOK01 be used?
In drinking water pipework up to 80 °C. For other media (e.g. heating) the operating temperature can be up to 110 °C.
What certification does TAVINOX GROOVE GOK01 have?
The TAVINOX GROOVE grooved system holds ITC product certificate No. 26 0151 V/AO for drinking water and heating installations, issued on 12 May 2026 by Institut pro testování a certifikaci, a.s. (authorised body No. 224, Czech Republic). The technical data list the certifications CCZ, ITC and ISO 9001. The TAVINOX GROOVE system was tested at ITC to DVGW standards; it does not hold a DVGW certificate of its own.
Can TAVINOX GROOVE GOK01 be connected to the TAVINOX PRESS press system?
Yes, with the grooved × press transition fittings: PR14GRF and TK14GRFGR — AISI 316L (1.4404); PR64GRF and TK64GRFGR — AISI 304 (1.4301). Their press end takes TAVINOX PRESS tubes of 76.1, 88.9 and 108 mm.
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 GROOVE grooved system)
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 the TAVINOX GROOVE grooved system.











