*Single Seal & Balanced
*Independent of Direction of Rotation
*No Dynamic O-ring & with clamped seat for reversed pressure
*metal Bellows

The BGMFL85 series mechanical seals offer a wide range of applications for gas-lubricated mechanical seals in high and low temperature environ-ment.It is suitable for liquid gas pumps, in the refinery and petrochemical industry, in tandem arrangement or as safety seal on the atmosphere side.The special design of the drive collar allows the installation of all kinds of secondary seals.The bellows are based on the proven lamella geometry but with reduced spring rate and are hydraulically balanced.There is no dynamic O-ring and hence no danger for hang-up problems.The U-grooves are placed in the stationary seat, V-grooves (dependent on direction of rotation) are possible.

Operating limit
specification: 16~100mm
Pressure: ≤2.5Mpa (Double layer wave plate≤5.0Mpa.
Temperature:-20~300 Celsius
Linear speed: ≤15m/s
Axial movement: +/-1.0mm

Combination of materials
Seal face: Graphite, Silicon carbide, Tungsten carbide
Secondary sealing: Acrylonitrile rubber, Fluorine rubber, Ethylene propylene, Flexible graphite, PTFE
metal component: Stainless steel, Alloy steel