Cartridge mechanical seal CobaDGS - Zero Emission Solution

for compressorsmetalcarbon

Features The sealing solution for reduction of methane-/ process gas emissions Gas-lubricated Bi-directional Ready-to-fit cartridge unit Available for following seal arrangements: single and tandem Co-axial primary seal Separation seals as CobaSeal, carbon rings or labyrinths optional Advantages No methane-/ process gas emissions Supplied with clean nitrogen (no dew point and dirt problems) Robust Offers higher safety than a double seal Upgrade-possibility of existing single, double and tandem seals No modification of the compressor necessary Efficient alternative to hermetically sealed systems For compressors with gas- and steam turbines, as well as with electric drive Operating range Shaft diameter: d = 25 … 350 mm (0.99“… 13.78“) Pressure: p = from vacuum up to 160 bar (2,321 PSI) Design temperature: t = -46 °C … +230 °C (-51 °F ... +446 °F) Sliding velocitiy: vg = up to 140 m/s (459 ft/s) Project specific special designs possible Materials Stationary seal face: Silicon carbide with DLC-coating, DiamondFace-coating optional Rotating seal face (Seat): Silicon carbide with DLC-coating, DiamondFace-coating optional Secondary seals: FKM or other elastomers, depending on product gas composition Metal parts: 1.4006 or other stainless steels Other materials on request. Dimensions on request Standards and approvals NACE API 692 Recommended applications Pipelines Gas storages Oil and gas industry Chemical industry Power plants Centrifugal compressors Turbo expander Turbines Pumps Blower