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TG74BD

EagleBurgmann H74-D Series Replacement

PTFE wedge, Mutil-Spring construction mechanical seals Type 74BD is suitable for use with corrosive fluid media, such as typically corrosives, and chemicals.

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Detail Information

Features

Double seal

Balanced

Bi-directional

Multiple springs

For stepped shafts

EN 12756 Standard

Equivalent to H74-D

Recommended Applications

Chemical industry

Industry pumps

Process Pumps

Oil refining and petrochemical industry

Other Rotating Equipment

Operating range

Shaft diameter: d1=14...150mm

Pressure: p=0...2.5Mpa（362.5psi）

Temperature: t = -40 °C ..+220 °C(-40°F to 428°F)

Sliding velocity: Vg≤20m/s（65.6ft/s）

Notes: The range of preesure,temperature and sliding velocity is depend on seals combination materials

Product Structure

Combination Materials

1. Rotary Face

Reaction Bonded Sic RB SIC O

Tungsten Carbide.Ni-bin der W

2. Stationary Seat

Carbon graphite, resin impreg A_K

Reaction Bonded Sic RBSlC O

Tungsten Carbide.Ni -binder W

3. Auxiliary Seal

Fluorocarbon Rubber FKM V

Etylene Propylene Rubber EPDM E

Perfluorocarbon Rubber FFKM K

4. Spring

GrNi-Steel (AlS1304) F

GrNiMo-Steel (AlS1316) G

HastelloyC-4 M

5. Metal Parts

GrNi-Steel (AlS1304) F

GrNiMo-Steel (AlS1316) G

HastelloyC-4 M

Mechanical Seals

Pump Seals

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