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4RPS Pump-specific cartridge mechanical seal

Pump-specific cartridge mechanical seal 4RPS

For the RPH-RO pump type series. Single balanced cartridge seal in stationary design.

Main Applications

  • Seawater

Technical Data

Cartridge seal
Yes
Design
Stationary
Balancing
Balanced mechanical seal
Sealing type
Single
Maximum allowable fluid temperature
100 °C

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Benefits

  • The single cartridge seal features a quench connection for flushing out leakage on the atmospheric side.
  • Tailored to the seal installation space and requirements of the RPH-RO pump type series
  • A floating throttling ring provides additional safety.

Technical Data

Maximum allowable axial movement
1.5 mm
Minimum allowable axial movement
-1.5 mm
Component type series
KSB RPH-RO [A]
Cartridge seal
Yes
Maximum allowable dynamic pressure
70 bar
Design
Stationary
Balancing
Balanced mechanical seal
Sealing type
Single
Mtrl metallic compon.mech.seal
X2CRNIMOCUWN25-7-4,
X2CRNIMON22-5-3
Mtrl mech.seal spring
NIMO16CR16TI
Mtrl Secondary seal inboard
FLUORINATED RUBBER
Mtrl Mating ring inboard
Q1 [SIC, DRUCKLOS GESINTERT]
Mtrl Primary ring inboard
Q1 [SIC, DRUCKLOS GESINTERT]
Direction of rotation
Bi-directional
Maximum allowable sliding velocity
20 m/s
Spring design
Multiple springs
Maximum allowable static pressure
100 bar
Maximum allowable fluid temperature
100 °C
Minimum allowable fluid temperature
-15 °C

Sectional Drawings

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