CONICAL-SPRING SEALS

H32 / H37

  • O-ring, Conical-Spring Drive
  • Shaft Rotation Dependant
  • Unbalanced
  • Metric Sizes - European

H3_ series are conical spring-driven mechanical seals for metric shafts, based on the industry standard "M3N" design. The spring provides both axial and rotational force being tightly wound in the direction of the rotating shaft.

 

Compliance to DIN EN 12756 in shaft size only. Fitting length and stationary cavity size ("G4" seat standard) to European dimensional standards.

 

H32 is shrink-fitted rotary "soft" face i.e. resin-carbon (CAB) or antimony-carbon (A1). Equivalent "M32".

 

H37 is shrink-fitted rotary "hard" face  i.e. silicon carbide (SiC). Equivalent "M37G".

 

H3 is monolithic one-piece rotary, i.e. S.S. or CAB. Equivalent "M2" or "M3"

  • Operating conditions¹

Temperature:

Pressure:

Speed:

-30°C to +200°C

< 10 bar, 145 psi, 1 MPa

< 10m/s, 2000 fpm

rpm < 600000/(3.14 x D1)

PARTS

A

B

C

D

E

F

G

H

I

Stationary O-ring

Stationary Face / Ring

H32 - Rotary Face / Ring

H32 - Rotary Holder

Rotary O-ring

Rotary Thrust Ring

Rotary Conical Spring

H37 - Rotary Face / Ring

H37 - Rotary Holder

SEAT OPTIONS

G4

G13

G6

G9

standard, euro - SiC

euro - CAB

DIN EN, no slot

DIN EN, with slot

EQUIVALENT

M3N range:

M3, M32, M37, M37G

M32N4, M37N4, M37GN4

M3N, M32N, M37N, M37GN

M2N range:

M2, M2N4, M2N

 

37 / 38 / 38D / 39

P37 / P38 / P38B / P39

T01 / T01U / T01D / T01DU

T02 / T02U

Type 8, 8B, 8DIN, 8DINS

Type 9

RB632 / RB638

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

  • Material options

Elastomer:

Metal Parts:

N, V or EP

304S.S.

H32 / 37 - Data Sheet

M3N

PRODUCT INFORMATION

DIMENSIONS

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

*non-DIN EN 12756 size