CR1-D

Mechanical Seals for pumps – Standard Cartridge Seals

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

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

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)

ANSI

Water and waste water technology, Mining industry, Food and beverage industry, CCUS, Power generation, ANSI process pumps, Universally applicable, Process industry, Petrochemical industry, Chemical industry, Pharmaceutical industry, Power plant technology, Pulp and paper industry