Cartex ANSI Dual Seal

Features cartex ansi dual seal

Advantages

Ideal for use in ANSI process pumps
Universal applicable for packings conversions, retrofits or OEM
Ideal seal for standardizations
No dimensional modification of the seal chamber necessary, small radial installation height
No damage of the shaft by dynamically loaded O-Ring
Extended service life
No damage caused by dirt entered during assembly
Straightforward and easy installation due to pre-assembled unit

Operating range cartex ansi dual seal

Shaft diameter:
d1 = 25 … 100 mm (1.000″ … 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)
  Sliding velocity: vg = 16 m/s (52 ft/s)
Sliding face material combination Q1Q1 or U2Q1
- Pressure: p1 = 20 bar (290 PSI)
- Sliding velocity: vg = 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
  Axial movement:
  ±1.0 mm, d1 ≥75 mm ±1.5 mm

Materials cartex ansi dual seal

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)

Recommended applications cartex ansi dual seal