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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