Cartridge mechanical seal DF-(P)DGS6 DiamondFace

for pumpmetalPTFE

DiamondFace bonded primary seal faces Safe cupped retainer for rotating ring Bi-directional Ready-to-fit cartridge unit Single, double, tandem and tandem seal with intermediate labyrinth arrangement available An ideal solution for Ethane, CO2 and many other low vapor margin applications This type of seals can handle both liquid and gaseous phases during the operation of the pump Advantages Significantly lower leakage rate compared to competition Longer life span Wear and contact free operation Self-cleaning 3-D gas grooves High gas film stiffness Proven, reliable and economical solution Can be adjusted even to extreme narrow installation space - retrofits are easy to implement Operating range Shaft diameter: D = 32 … 154 mm (1.26" … 6.06") with PTFE option: -100 °C ... +200 °C (-148 °F ... +392 °F) Sliding velocity: vg = 0.6 … 140 m/s (2 … 459 ft/s) For applications outside the operating range mentioned, please inquire. Materials Primary seat and seal face: Silicon carbide with DiamondFace bonding Secondary seat and seal face: Silicon carbide with DLC coating. Optional also with DF-coating Secondary seals: FKM, PTFE (DF-PDGS6) or other elastomers, depending on product gas composition Metal parts: 1.4006 (410) and other stainless steels Standards and approvals NACE Recommended applications Oil and gas industry Refining technology Petrochemical industry Hydrocarbon applications CO2 applications