DALMAR S.p.A.

Gaskets O-Ring seals

Gaskets O-Ring seals

Dalmar chose Hutchinson because …

Hutchinson controls the entire production chain within its factories: every year it develops, produces and certifies more than 100 types of compounds formulated to meet the strictest specifications and regulations of the industry. Pioneer in the field of seals. In 1948 he introduced the R-ring in Europe, which would later be known by the common term of O-ring: the simplest and most used seal in the world.

The "R" seal ring is the simplest, most effective and most economical solution to sealing problems.

Round-section O-rings, defined with the designations “O-RING” and “R” rings, a trademark registered by the Joint Français, have been used for several years in the field of seals. Their success, linked to the development of polymers and special elastomers, has never ceased to develop and their field of application, already very vast, continues to expand.

• It is used for static applications, for reciprocating movements and for rotary movements up to 300 m / minute
• It can be used in a wide temperature range, from cryogenics to high temperatures and normally in a range from -50 ° C to + 250 ° C
• Meets the needs of vacuum applications up to 2000 bar
• It mounts in simple seats that are easy to work with
• It adapts, also due to its profile, to the smallest overall dimensions