TAVINOX GROOVE — Fittings
Fittings 304/316L
Grooved fittings for DN 125 to DN 300 pipework in grades SS304 and SS316L.
Elbows
20 variants · 4 families
Tees
60 variants · 6 families
Reducers and adaptors
50 variants · 4 families
Grooved-end pipes
56 variants · 2 families
Couplings
10 variants · 2 families
Flanges
10 variants · 2 families
End caps
10 variants · 2 families
Expansion joints
10 variants · 2 families
Frequently asked questions — Fittings
What materials are TAVINOX GROOVE fittings made of?
Each family is made in one stainless steel grade: AISI 304 (1.4301) — KP60GRGR, OB61GRGR, OB62GRGR, PB60GR, PR64GRF, PR64GRGR, SP60GR, TK60GRGRGR, TK64GRFGR, TK64GRGRGR and UC60GR; AISI 304L (1.4307) — NA60GRGR; AISI 316L (1.4404) — KP10GRGR, NA10GRGR, OB11GRGR, OB12GRGR, PB10GR, PR14GRF, PR14GRGR, SP10GR, TK10GRGRGR, TK14GRFGR, TK14GRGRGR and UC10GR.
What sizes are TAVINOX GROOVE fittings made in?
226 variants in 24 families 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 fittings?
Nominal pressure 1.6 MPa (PN 16); gasket: EPDM elastomer; groove system: TGS — rolled groove.
Up to what temperature can TAVINOX GROOVE fittings 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 do TAVINOX GROOVE fittings 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 fittings 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.