Mechanical seals are produced in series the following types:​

• with a thermal shutter of type T1 (ТТ) for hermetic sealing shafts of devices of biological processes where the sterility of technological process is required;​​unary with metal bellows T2 (ТСК) for hermetic sealing shafts of devices with not explosive and harmless environments;​​​double with the bearing and without it following types T3 (ТД-6), Т3 (ТД-25), Т4 (ТДП-25) for hermetic sealing shafts of devices withharmful explosive and combustible environments;​​​for enameled devices Т5 (ТДФ), Т6 (ТДПФ) Т7 (ТДПФ) for hermetic sealing shafts of devices with rust-resistant coverings (including enameled, covered with acid-resistant and acid-alkali-resistant enamels) for work under pressure 0,6 МPа with harmful explosive and combustible environments;​​​for small-sized sealing shafts Т8 (ТДМ-16), Т8 (ТДМ-32) for hermetic sealing shafts of devices with harmful explosive and combustible environments.​​

  The package includes mechanical seals and spare parts to them.​

  Mechanical seals can be equipped with pneumatic hydraulic accumulator.​

The general technical requirements on manufacturing of mechanical seals are defined by Specs. 26-01-1032-88.