4KDC Pump-specific cartridge mechanical seal

Pump-specific cartridge mechanical seal 4KDC

For the KWP pump type series. Double cartridge seal in double balanced, stationary design.

Main Applications

Waste water containing stringy material and abrasive particles

Technical Data

Cartridge seal: Yes
Design: Stationary
Balancing: Balanced double mechanical sea
Sealing type: Double
Maximum allowable fluid temperature: 200 °C

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Benefits

This double cartridge seal includes the shaft protecting sleeve for the pump and can be fitted without adjusting dimension.
The pumping ring circulates the buffer/barrier fluid effectively. The circulation ensures optimum heat dissipation in the space between the two seals and thus increases the service life.
The double mechanical seal's cartridge can be operated with either unpressurised buffer fluid or pressurised barrier fluid. In the event of a sudden barrier fluid pressure failure, the double pressure balanced design ensures that 4KDC's seal faces will not open.

Technical Data

Maximum allowable axial movement: 1.5 mm
Minimum allowable axial movement: -1.5 mm
Component type series: KSB KWP-NC [A]
Cartridge seal: Yes
Maximum allowable dynamic pressure: 16 bar
Design: Stationary
Balancing: Balanced double mechanical sea
Sealing type: Double
Mtrl metallic compon.mech.seal: X6CRNIMOTI17-12-2,
X1NICRMOCU25-20-5,
X2CRNIMON22-5-3
Mtrl mech.seal spring: X6CRNIMOTI17-12-2
Mtrl Secondary seal outboard: FLUORINATED RUBBER,
ETHYLENE-PROPYLENE-DIENE-RUBBER,
PERFLUORO-RUBBER
Mtrl Secondary seal inboard: FLUORINATED RUBBER,
ETHYLENE-PROPYLENE-DIENE-RUBBER,
PERFLUORO-RUBBER
Mtrl Mating ring outboard: Q1 [SIC, DRUCKLOS GESINTERT]
Mtrl Mating ring inboard: Q1 [SIC, DRUCKLOS GESINTERT]
Mtrl Primary ring outboard: B [CARBON, RESIN-IMPREGNATED]
Mtrl Primary ring inboard: Q1 [SIC, DRUCKLOS GESINTERT]
Direction of rotation: Clockwise rotation
Maximum allowable sliding velocity: 20 m/s
Spring design: Multiple springs
Maximum allowable static pressure: 24 bar
Maximum allowable fluid temperature: 200 °C
Minimum allowable fluid temperature: -40 °C

Sectional Drawings

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