CONICAL-SPRING SEALS

H12N

  • O-ring, Conical-Spring Drive
  • Shaft Rotation Dependant
  • Balanced
  • To DIN EN 12756 Standards

H12N is a DIN EN 12756 compliant (apart from fitting length) conical spring-driven balanced mechanical seal, based on the industry standard "H12N & H17GN" designs. The spring provides both axial and rotational force being tightly wound in the direction of the rotating shaft.

 

Available in shrink-fitted carbon or carbide rotary face materials, dimensionally interchangeable.

PARTS

A

B

C

D

E

F

G

H

I

Stationary O-ring

Stationary Face / Ring

CAB Rotary Face / Ring

CAB Rotary Holder

Rotary O-ring

Rotary Thrust Ring

Rotary Conical Spring

SiC Rotary Face / Ring

SiC Rotary Holder

SEAT OPTIONS

G9

standard, with slot

EQUIVALENT

  • Operating conditions¹

Temperature:

Pressure:

Speed:

-30°C to +260°C

< 25 bar, 360 psi, 2.5 MPa

< 15m/s, 3000 fpm

rpm < 900000/(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.

H12N / H17GN

P32

T01DB/ T01DBU

Type 82

RB642 / RB647

DATA SHEET

  • Material options

Rotary Face:

Stationary Face:

Elastomer:

Metal Parts:

CAB, A1, SiC or TC

SiC

N, V or EP

304S.S.

H12N - Data Sheet

H12N / H17GN

PRODUCT INFORMATION

DIMENSIONS

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