WAVE-SPRING SEALS

H7B

  • O-ring, Wave-Spring Pusher
  • To DIN EN 12756 Standards
  • Balanced
  • Bi-directional

H7B is a DIN EN 12756 compliant mechanical seal for metric shafts, based on the industry standard "H7N" design. It is balanced to suit stepped shafts. It is o-ring mounted and relies

on a one-piece, sinuous wave-spring

that offers greater axial movement

tolerance while reducing the risk of clogging.

 

The design allows the rotating seal face to be easily replaced or interchanged.

PARTS

A

B

C

D

E

F

G

H

Stationary O-ring

Stationary Face / Ring

Rotary Face / Ring

Rotary O-ring

Rotary Thrust Ring

Rotary Wave-Spring

Rotary Holder

Rotary Set Screws

SEAT OPTIONS

G9

G15

G4

G13

G6

standard - SiC

standard - CAB

Euro - SiC

Euro - CAB

DIN EN Short - SiC

  • Operating conditions¹

EQUIVALENT

Temperature:

Pressure:

Speed:

-30°C to +260°C

< 40 bar, 580 psi, 4 MPa

< 20m/s, 4000 fpm

rpm < 1200000/(3.14 x D2)

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

H7N

P167B

W07DMBU

Type 1678 / 1678M

RB677

  • Material options

DATA SHEET

Rotary Face:

Stationary Face:

Elastomer:

Metal Parts:

SiC

SiC, CAB or A1

N, V or EP

304S.S.

H7B - Data Sheet

H7N

PRODUCT INFORMATION

DIMENSIONS

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

*non-DIN EN 12756 size