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4HLQ Pump-specific cartridge mechanical seal

Pump-specific cartridge mechanical seal 4HLQ

For the HPK-L pump type series. Single, unbalanced component seal, dynamic design. Used in combination with KSB's 4HL single mechanical seal.

Main Applications

  • Hot water transport
  • Handling heat transfer fluids

Technical Data

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

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Benefits

  • The mechanical seal is used with quench (unpressurised buffer fluid) for pumps handling hot water or thermal oils to prevent dry running or cracking of the thermal oil when in contact with atmospheric oxygen.
  • Combined with KSB's 4HL single mechanical seal this is an optimum sealing solution for demanding fluids.
  • The design facilitates installation with no need for assembly fixtures or adjusting dimension.

Technical Data

Maximum allowable axial movement
0.5 mm
Minimum allowable axial movement
-0.5 mm
Component type series
KSB Etanorm-RSY [A],
KSB HPK-L [B]
Cartridge seal
Yes
Maximum allowable dynamic pressure
16 bar
Design
Dynamic
Balancing
Unbalanced mechanical seal
Sealing type
Single
Mtrl metallic compon.mech.seal
X39CRMO17-1,
X6CRNIMOTI17-12-2
Mtrl mech.seal spring
X6CRNIMOTI17-12-2
Mtrl Secondary seal inboard
FLUORINATED RUBBER
Mtrl Mating ring inboard
A [CARBON, METAL-IMPREGNATED]
Mtrl Primary ring inboard
Q1 [SIC, DRUCKLOS GESINTERT]
Direction of rotation
Bi-directional
Maximum allowable sliding velocity
16 m/s
Spring design
Multiple springs
Maximum allowable static pressure
24 bar
Maximum allowable fluid temperature
100 °C
Minimum allowable fluid temperature
-15 °C

Sectional Drawings

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