Seal Refurbishment Services

Elastomer Chemical Compatibility

Seal Face Chemical Compatibility

EXTERNAL SEALS

H8-2

  • Externally mounted
  • Corrosive applications

PARTS

H8-2 is a cost-effective solution for highly corrosive chemical services. It is installed outside of the seal chamber. As such, no metallic components come in contact with the process fluid. The rotary face is hydraulically balanced to provide proper face loading for extended reliability.

 

This seal is commonly specified in American-made standardised pumps such as Fybroc, Armstrong and Bell & Gossett.

  • Operating conditions

A

B

C

D

E

F

G

H

I

PTFE Gasket

Integral flush

Clamped Seat

Rotary Face

O-ring

Thrust Ring

Multi-spring

Drive Collar

Set Screw

EQUIVALENT

Type 8B2

RA / RA-C

VGXB2

Temperature:

Pressure:

Speed:

-40°C to 205°C

up to 27.6 bar, 400 psi

up to 23m/s, 4500 fpm

  • Material options

DATA SHEET

H8-2 - Data Sheet

Rotary Face:

Stationary Face:

Gaskets:

Elastomer:

Metal Parts

CAB, SiC

CER, SIC, TC

PTFE

N, V or EP

Stainless Steel

TYPE 8B2

PRODUCT INFORMATION

DIMENSIONS

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