CMS ANSI Dual Standard Cartridge Seals

• Dual seal
• Available for standard (CMS-ASDN) and big bore (CMS-ABDN) seal chambers
• Balanced Cartridge
• Double pressure balanced Independent of direction of rotation Integrated pumping device

Technical Features

• Ideal for use in ANSI process pumps
• No damage of the shaft by dynamically loaded O-Ring
• No dimensional modification of the seal chamber necessary, small radial installation height
• l5 Universal applicable for packings conversions, retrofits or OEM

Typical Industrial Applications

• ANSI process pumps Chemical industry
• Food and beverage industry Petrochemical industry Pharmaceutical industry Universally applicable
• Water and waste water technology

Materials

• Seal face -  Silicon carbide (Q1), Carbon graphite resin impregnated (B), Tungsten carbide (U2)
• Seat -  Silicon carbide (Q1)
• Secondary seals -  FKM (V), EPDM (E), FFKM (K), Perfluorocarbon rubber/PTFE (U1)
• Springs -  Hastelloy® C-4 (M)
• Metal parts -  CrNiMo steel (G), CrNiMo cast steel (G)

Performance Capabilities

• Sizes -  d1 = Upto 100 mm (Upto 4.000”) Other sizes on request
• Temperature -  t= -40 °C ... 220 °C (-40 °F ... 428 °F)
• (Check O-Ring resistance)
• Sliding face material combination BQ1 Pressure -  p1 = 25 bar (363 PSI) Speed = 16 m/s (52 ft/s)
• Sliding face material combination Q1Q1 or U2Q1 Pressure -  p1 = 20 bar (290 PSI)
• Speed = 10 m/s (33 ft/s) Barrier fluid circulation system -
• p3max = 25 bar (363 PSI)
• Δp (p3 - p1) ideal = 2 ... 3 bar (29 ... 44 PSI),
• 7 bar (102 PSI) for barrier media with poor lubricating properties)
• Pump startup -
• Δp (p3 - p1)max = 25 bar (363 PSI) allowed Recommended supply medium -  max. ISO VG 5 Permissible axial movement -  ± 1.0 mm, d1 >= 75 mm ± 1.5 mm