Features
Cartridge design
Single seal
Balanced
Multiple springs
Stationary spring loaded unit
Shrink-fitted seal face
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
Insensitive to shaft deflections due to stationary design
Pre-assembled unit for quick and easy installation
Suitable for use in compliance with API 682, type ES
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: p1 = 150 bar (2,175 PSI)
Temperature: t = 200 °C (394 °F),
Sliding velocity: vg = 60 m/s (197 ft/s)
Axial movement: ±3 mm
* 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), Titanium (T2), Hastelloy® C-4 (M)
Recommended applications
Oil and gas industry
Refining technology
Petrochemical industry
Chemical industry
Power plant technology
Pulp and paper industry
Water and waste water technology
Hot water
Sour water
Caustic soda
Amines
Crystallizing media
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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