pressfitting systems, Pressfittings
https://www.racmet.com/en-ww/pressfittings.aspx
Pressing permanently deforms the fitting on the pipe thus leading to a perfect mechanical joint, while the O-Ring provides for the hydraulic tightening connection. ... No need to prepare the fittings, with hemp or Teflon as any joint comes with factory mounts O-Rings.

Raccorderie Metalliche and brackish water plants
https://www.racmet.com/en-ww/brackish-water-plants.aspx
All marinePRES fittings are fitted with a green O-Ring in FKM, compatible with Class 1 and 5 plants (ISO 8573-1/2001) and PN16 approved.

Steam plants
https://www.racmet.com/en-ww/steam-plants.aspx
  The advantages for the pressing inoxPRES system, designed to build steam units: Simple, easy and user-friendly assembly (efficient) Rapid installation with a lower number of labour hours required Safe and approved (guaranteed system) No specialised labour required (no certification) Safety and no use of open flames     The inoxPRES STEAM range with white [...]

Raccorderie Metalliche and process water plants
https://www.racmet.com/en-ww/water-process-plants.aspx
All marinePRES joints are fitted with a green O-Ring in FKM, compatible with Class 1 and 5 plants (ISO 8573-1/2001) and PN16 approved.

Silicone free systems
https://www.racmet.com/en-ww/silicon-free-systems.aspx
Raccorderie Metalliche has set up a whole range of Inoxpres system ‘’Silicone Free’’ with the FKM o-ring, tested and following the highest standards of cleanness which allows to respect the ASTM international standards.

Which O-Rings are currently available?
https://www.racmet.com/en-ww/which-o-rings-are-currently-available.aspx
Communication > The expert answers > Which O-Rings are currently available? Which O-Rings are currently available? The O-Rings currently available are: EPDM (ethylene-propylene diene polymer) O-Rings usually assembled on pressfitting joints; NBR (nitrile [...]

O-ring
https://www.racmet.com/en-ww/o-ring.aspx
Communication > Glossary > O-ring O-ring Oring; OR; patented lens-shaped sealing ring placed at the bulging edges of pressfitting fittings. Different O-Rings are available according to the type of application (EPDM, STEAM, HT, FKM, NBR-HNBR,MVQ)

Which O-Rings are required for solar installations?
https://www.racmet.com/en-ww/which-o-rings-are-required-for-solar-installations.aspx
Communication > The expert answers > Which O-Rings are required for solar installations? Which O-Rings are required for solar installations? FKM (fluorocarbon rubber) O-Rings have suitable characteristics for solar panel installations.

What are the dimensional characteristics of the O-Rings assembled on pressfitting joints?
https://www.racmet.com/en-ww/what-are-the-dimensional-characteristics-of-the-o-rings-assembled-on-pressfitting-joints.aspx
Communication > The expert answers > What are the dimensional characteristics of the O-Rings assembled on pressfitting joints? What are the dimensional characteristics of the O-Rings assembled on pressfitting joints? All joints have an O-Ring assembled, with the typical profile, a patented [...]

Can EPDM O-Rings be used for compressed-air installations?
https://www.racmet.com/en-ww/can-epdm-o-rings-be-used-for-compressed-air-installations.aspx
Communication > The expert answers > Can EPDM O-Rings be used for compressed-air installations? Can EPDM O-Rings be used for compressed-air installations? ... Up to the oil residual class 4 (ISO 8573 standard), it is still be possible to use the EPDM black O-Ring.