RCS-D4 / 3CW-BB

Description

Double seal in back-to-back arrangement
Compact – cartridge design
Pressure double balanced monolithic seal faces
Suits API 610 stuffing box dimensions
API 682 – Category 2 and 3, Type A, Arrangement 3
Pipe connections enable various API Plans
Low heat generation
Independent on rotation direction
Easy to retrofit

Materials

Seal faces: Carbon (resin or metal grade impregnated), RbSiC (Q2), SSiC (Q1), tungsten carbide grades (Cobalt or Nickel bounded)
O-ring: EPDM (E), FKM (V), FFKM (K), FEP coated
Spring: X12CrNi17.7, Hastelloy C-276
Metal parts: 316 SS

Operating parameters

Pressure – vacuum to 40 bar
Temperature limits – 150°C EPDM / 205°C FKM, FEP / 260°C FFKM
Speed – 25 m/sec