Seal Refurbishment Services

Elastomer Chemical Compatibility

Seal Face Chemical Compatibility

METAL BELLOW SEALS

H680

  • Edge-welded metal bellows
  • High corrosion resistance
  • Pressure balanced
  • No shaft fretting / hang up
  • Self cleaning
  • Designed to fit DIN 24960 and other restricted cavities

PARTS

A

B

C

D

E

F

Rotary Face

Face Holder

Metal Bellows

Shell

O-ring

Set Screw

H680 is an edge-welded metal bellows mechanical seal designed to provide corrosion resistance in a broad range of corrosive media.

  • Operating conditions

Temperature:

Pressure:

Speed:

-30°C to 260°C

up to 25 bar, 360 psi

up to 25m/s, 5000 fpm

EQUIVALENT

Type 680

Type 886

MFL85N

BSAI

STANDARD SEAT

  • Materials

G9

anti-rotation slot

Rotary Face:

Rotary Holder:

Metal Bellows:

Elastomer:

Shell:

CAB, A1, SiC, TC

Carpenter 20

AM350

N, V or EP

316 Stainless Steel

DATA SHEET

H680 - Data Sheet

TYPE 680 - METAL BELLOW SEALS

PRODUCT INFORMATION

DIMENSIONS

note: dimensions refer to installed length, not 'free' length