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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
X39CRMO17-1
Mtrl mech.seal spring
X6CRNIMOTI17-12-2
Mtrl Secondary seal inboard
FLUORINATED RUBBER,
ETHYLENE-PROPYLENE-DIENE-RUBBER
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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