MULTI-SPRING SEALS

HRN

  • Stationary-Based Design
  • O-ring, Multi-Spring Pusher
  • To DIN EN 12756 Standards
  • Balanced
  • Bi-directional

HRN is a balanced, o-ring mounted,

multi-spring mechanical seal based on the industry standard "HRN" design

compliant with DIN EN 12756. The springs are located and protected in the stationary, away from the product, eliminating the possible effects of clogging.

 

It is commonly used in dirty, abrasive

solids-containing media.

PARTS

A

B

C

D

E

F

G

H

I

J

K

L

Rotary Holder

Rotary Set Screws

Rotary O-ring

Rotary Pin

Rotary O-ring

Rotary Face / Ring

Stationary Face / Ring

Stationary O-ring

Stationary Pin

Stationary O-ring

Stationary Holder

Stationary Multi-Springs

EQUIVALENT

  • Operating conditions¹

HRN

Temperature:

Pressure:

Speed:

-20°C to +220°C

< 452 bar, 360 psi, 2.5 MPa

< 20m/s, 4000 fpm

rpm < 12000000/(3.14 x D1 mm)

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

DATA SHEET

HRN - Data Sheet
  • Material options

Rotary Face:

Stationary Face:

Elastomer:

Metal Parts:

SiC or S.SiC

SiC or S.SiC

N, V or EP

304S.S.

HRN

PRODUCT INFORMATION

DIMENSIONS

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