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4HL Component mechanical seal

Component mechanical seal 4HL

For the HPK-L pump type series. Single, balanced component seal, dynamic design.
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Main Applications

  • Hot water transport
  • Handling heat transfer fluids

Technical Data

Cartridge seal
No
Design
Dynamic
Balancing
Balanced mechanical seal
Sealing type
Single
Maximum allowable fluid temperature
130 °C

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Benefits

  • Dynamic design, multi-spring arrangement, bi-directional and balanced. Robust and practical seal design.
  • In combination with the pump's design, the seal can be used for fluid temperatures of up to 350 °C.
  • Circumferential groove at the primary ring carrier facilitates setting the axial pre-load of the mechanical seal.

Technical Data

Maximum allowable axial movement
1.5 mm
Minimum allowable axial movement
-1.5 mm
Component type series
KSB HPK-L [B]
Cartridge seal
No
Maximum allowable dynamic pressure
40 bar
Design
Dynamic
Balancing
Balanced mechanical seal
Sealing type
Single
Mtrl metallic compon.mech.seal
1.4122
Mtrl mech.seal spring
1.4571
Mtrl Secondary seal inboard
FKM,
EPDM
Mtrl Mating ring inboard
Q1 [SIC, DRUCKLOS GESINTERT]
Mtrl Primary ring inboard
A [CARBON, METAL-IMPREGNATED],
B [CARBON, RESIN-IMPREGNATED]
Direction of rotation
Bi-directional
Maximum allowable sliding velocity
20 m/s
Spring design
Multiple springs
Maximum allowable static pressure
60 bar
Maximum allowable fluid temperature
130 °C
Minimum allowable fluid temperature
-40 °C

Sectional Drawings

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