METAL BELLOW SEALS

H670

  • Metal Bellows - Rotary Only
  • Full Alloy C-276
  • Imperial Sizes
  • For Highly Corrosive Media

H670 is an edge-welded metal bellows mechanical seal designed to

provide resistance to extremely high

corrosive applications.

 

It has similar design principles to H670

except all metallic components are of

All-alloy C-276* construction.

  • Operating conditions¹

Temperature:

Pressure:

Speed:

-30°C to +260°C

< 25 bar, 360 psi, 2.5 MPa

< 25m/s, 5000 fpm

rpm < 1500000/(79.8 x D1 inch)

PARTS

A

B

C

D

E

F

Rotary Face / Ring

Rotary Face Holder

Rotary Metal Bellows

Rotary Shell

Rotary O-ring

Rotary Set Screws

EQUIVALENT

T670

T676

886

MFL85N

BSAI

DATA SHEET

¹Guide-values only (due to diversity of possible applications). Enquire for specific-use cases. Maximum values of each parameter cannot be applied together.

H670 - Data Sheet
  • Material options

Rotary Face:

Rotary Face Holder:

Metal Bellows:

Elastomer:

Shell:

A1 or S.SiC

Alloy C-276

Alloy C-276

N, V, EP or ~

Alloy C-276

*is a wrought alloy with tungsten. Also referred to trade

names: HASTELLOY® C-276, Inconel® C-276 and Inco

Alloy C-276.

~special compounds available on request e.g. FFKM,

PTFE Encap. & TFE. trade names: Kalrez®, Teflex®, Aflas®

& others.

TYPE 670

PRODUCT INFORMATION

DIMENSIONS

Dimensions refer to installed length, not 'free' length: