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Product name : Burgmann Cartex -ansi-br-dual-seals
Item : 201512918538
keyword : Burgmann Mechanical seal
Feature : Burgmann Mechanical seal
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  Details:
 Features

Dual seal

Available for standard (Cartex-ASDN) and big bore (Cartex-ABDN) seal chambers

Cartridge

Balanced

Independent of direction of rotation

Double pressure balanced

Integrated pumping device

 

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

 

Recommended applications

Process industry

Petrochemical industry

Chemical industry

Pharmaceutical industry

Power plant technology

Pulp and paper industry

Water and waste water technology

Mining industry

Food and beverage industry

Universally applicable

ANSI process pumps

 

Operating range

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

 

Standards and approvals

 

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)


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