Features
Cartridge design
Dual seal
Balanced
Integrated pumping device
Stationary spring loaded unit
Multiple springs arrangement
Shrink-fitted seal face
One rugged seat
Advantages
Deformation-optimized seal for high pressures and high sliding velocities (static up to 500 bar (7,250 PSI))and dynamic up to 150 bar (2,175 PSI))
Economical due to standardized inner components
High flexibility due to adaptation of the connection parts to the pump seal chamber
Optimum heat dissipation due to integrated pumping device
Insensitive to shaft deflections due to stationary design
Dual seal does not open even in the event of barrier fluid pressure failure
Reliable operation due to one rugged seat with bandage
Version with loose-fitted seal face available, for extreme applications
Only small number of components
Operating range
Shaft diameter:
d1* = 40 ... 250 mm (1.57" ... 9.84")
Pressure: p3 = 150 bar (2,175 PSI)
Temperature: t = 200 °C (392 °F)
Sliding velocity: vg = 60 m/s (197 ft/s)
* Other sizes on request
Materials
Seal face:
SiC-C-Si, silicon impregnated carbon (Q3),
Carbon graphite antimony impregnated (A)
Seat: Silicon carbide (Q)
Secondary seals:
FKM (V), EPDM (E), FFKM (K)
Springs: Hastelloy® C-4 (M)
Metal parts: CrNiMo steel (G), Duplex (G1), Super Duplex (G4), Pure Titanium (T2), Hastelloy® C-4 (M)
Recommended applications
Oil and gas industry
Refining technology
Petrochemical industry
Chemical industry
Power plant technology
Volatile and non-volatile hydrocarbons
Crude oil
Process water
Crude oil feed pumps
Injection pumps
Multiphase pumps
Service
Provide special design
According to the requirements and conditions for the custom processing
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