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4STC Component mechanical seal

Component mechanical seal 4STC

For the Sewatec, Amarex KRT and AmaCan pump type series. Single, balanced component seal, stationary design. The springs are located outside the fluid handled.
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Main Applications

  • Untreated sewage

Technical Data

Cartridge seal
No
Design
Stationary
Balancing
Balanced mechanical seal
Sealing type
Single
Maximum allowable fluid temperature
200 °C

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Benefits

  • Single component seal, stationary design.
  • The springs are located outside the fluid handled and therefore protected from contamination.
  • The primary ring of the seal has been secured against falling out, making installation in vertically installed pumps easier.

Technical Data

Maximum allowable axial movement
2 mm
Minimum allowable axial movement
-2 mm
Component type series
KSB Amarex KRT [B],
KSB Amacan [A],
KSB Sewatec [B]
Cartridge seal
No
Maximum allowable dynamic pressure
14 bar
Design
Stationary
Balancing
Balanced mechanical seal
Sealing type
Single
Mtrl metallic compon.mech.seal
X2CRNIMOCUWN25-7-4,
X6CRNIMOTI17-12-2
Mtrl mech.seal spring
X6CRNIMOTI17-12-2,
NIMO16CR16TI
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],
Q1 [SIC, DRUCKLOS GESINTERT]
Direction of rotation
Bi-directional
Maximum allowable sliding velocity
10 m/s
Spring design
Multiple springs
Maximum allowable static pressure
16 bar
Maximum allowable fluid temperature
200 °C
Minimum allowable fluid temperature
-40 °C

Sectional Drawings

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