MULTI-SPRING SEALS

H802

  • O-ring, Multi-Spring Pusher
  • To DIN EN 12756 Standards
  • Double Seal (Back-To-Back)
  • Unbalanced
  • Bi-directional

H802 is a DIN EN 12756 compliant

mechanical seal for metric shafts

(apart from fitting length). It commonly sees usage in pumps of Chinese

origin.

 

The multi-springs ensure even face

pressure, minimising face wear whilst

also compensating for any shaft misalignment.

 

The design incorporates shrink-fitted

seal faces, providing better resilience

to impact damage, as well as reducing

the likelihood of chipping at the anti-rotation slots.

PARTS

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

S

Inb. Stationary O-ring

Inb. Stationary Holder

Inb. Stationary Face

Inb. Rotary Face

Inb. Rotary Holder

Inb. Rotary O-ring

Inb. Rotary Thrust Ring

Rotary Multi-Springs

Rotary Holder

Outb. Rotary Thrust Ring

Outb. Rotary O-ring

Outb. Rotary Holder

Outb. Rotary Face

Outb. Stationary Face

Outb. Stationary Holder

Outb. Stationary O-ring

Inb. Rotary Snap Ring

Set Screws

Outb. Rotary Snap Ring

EQUIVALENT

  • Operating conditions¹

802

DATA SHEET

Temperature:

Pressure:

Speed:

-20°C to +180°C

< 10 bar, 145 psi, 1 MPa

< 13m/s, 2500 fpm

rpm < 1780000/(3.14 x D1)

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

H802 - Data Sheet
  • Material options

Inboard:

Outboard:

Elastomer:

Metal Parts:

TC/TC

TC/CAB or TC/TC

N, V or EP

304S.S.

TYPE 802

PRODUCT INFORMATION

DIMENSIONS

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