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4EDBM6T/4EDBM6D Mechanical seal according to API 682

Mechanical seal according to API 682 4EDBM6T/4EDBM6D

Double mechanical seal to API 682, 4th edition. Balanced cartridge seal, Arrangements 2 and 3, dynamic design.

Main Applications

  • API 682 applications in the chemical and petrochemical industries

Technical Data

Cartridge seal
Yes
Design
Dynamic
Balancing
Balanced mechanical seal
Sealing type
Double
Maximum allowable fluid temperature
200 °C

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Benefits

  • The double cartridge seal can be connected in accordance with all common API Plans,such as: 01, 02, 11, 31, 32 + 52, 53 (A, B, C) and 23 + 52, 53 (A, B, C). The seals are available for all of KSB's API pumps.
  • The space between the two mechanical seals is flushed with a buffer or barrier fluid, depending on the application. This completely absorbs any leakage of the fluid pumped. In addition, the heat is transported away from this area.
  • The double pressure balanced mechanical seal can be operated with pressurised barrier fluid or unpressurised buffer fluid.

Technical Data

Maximum allowable axial movement
1 mm
Minimum allowable axial movement
-1 mm
Cartridge seal
Yes
Maximum allowable dynamic pressure
40 bar
Design
Dynamic
Balancing
Balanced mechanical seal
Sealing type
Double
Mtrl metallic compon.mech.seal
X6CRNIMOTI17-12-2
Mtrl mech.seal spring
NIMO16CR16TI
Mtrl Secondary seal outboard
FLUORINATED RUBBER
Mtrl Secondary seal inboard
FLUORINATED RUBBER,
PERFLUORO-RUBBER
Mtrl Mating ring outboard
Q2 [SIC-C-SI, COMPOSITE]
Mtrl Mating ring inboard
Q2 [SIC-C-SI, COMPOSITE]
Mtrl Primary ring outboard
A [CARBON, METAL-IMPREGNATED]
Mtrl Primary ring inboard
A [CARBON, METAL-IMPREGNATED],
Q2 [SIC-C-SI, COMPOSITE]
Direction of rotation
Bi-directional
Maximum allowable sliding velocity
23 m/s
Spring design
Multiple springs
Maximum allowable static pressure
40 bar
Maximum allowable fluid temperature
200 °C
Minimum allowable fluid temperature
-10 °C

Sectional Drawings

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