To respond to the significant expansion of the industrial valve market, Carrara has organized the production of PLANIGRAPH graphite rings according to the most modern requirements. Carrara has sized its production facilities to flexibly meet customer needs and, thanks to a significant equipment fleet and a modern, precise production schedule, can handle production batches ranging from a few units to thousands, always using Expanded Mineral Graphite of various purity grades, yet always of high quality.
The molding department is capable of producing custom-made graphite sealing rings, with dimensions ranging from 10.0 to 2,300.0 mm, for various applications.
The PLANIGRAPH range includes V48 sealing rings, pressure seal gaskets G11, G22, G23, G33, and G44, stem gaskets from the PGT and Controller families—also available in the V48 OXYGEN BAM version for oxygen service—and in a reinforced version for seat applications or where higher strength and elasticity are required. The specific density of the rings ranges between 1.40 and 1.70 gr/cm³ depending on the requirements and type of ring.