Dual-cartridge mechanical seal LDC21 series

multiple-springfor shaftsmetal

• Balanced. • Multispring. • Not dependent on the rotation direction. • Barrier fluid connections. (*) The temperature resistance depends on the mate- rial of the secondary seals used. The operating limits are defined by the PV factor which is determined for the sealing system characteristics and those of the application. DESCRIPTION: A double cartridge seal with a “back to back” arran- gement which permits operation with barrier fluids in excessive pressure conditions with respect to the wor- king fluid (P1 + 1.5 ~ 2 kg/cm2). For this reason it is advisable to install it in applications with toxic, contaminant or potentially dangerous fluids in where safety is an important factor. CONNECTIONS (R): 3/8" NPT. For 25, 28 and 30 mm shafts the connections are at opposite sides of the flange.