CONICAL-SPRING SEALS

HR3

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

HR3 is a conical spring-driven mechanical seal for metric shafts, based on the industry standard "Type 3" design. It is commonly found in economical pumps of Italian origin.

 

The spring provides both axial and rotational force being tightly wound in the direction of the rotating shaft. Left or right-hand winding springs must be specified.

 

An optional "R.C.L." seat is available with an extended tail and anti-rotation pin slot.

  • 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)

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

PARTS

A

B

C

D

E

F

G

Stationary O-ring

Stationary Face / Ring

Rotary Seal Ring

Rotary Square-ring

Rotary Frame

Rotary O-ring

Rotary Conical Spring

SEAT OPTIONS

R.C.C.:

R.C.L.:

standard, no slot

extended tail w/ slot

EQUIVALENT

Type 3

Simplex

Type 13

T04

BT-FN

43 / P43

SR3

M112K.FR

DIS. A

RB355 / RB355N

  • Material options

DATA SHEET

Rotary Face:

Stationary Face:

Elastomer:

Metal Parts:

CER or SiC

CAB or SiC

N, V or EP

304S.S.

HR3 - Data Sheet

TYPE 3 - SIMPLEX

PRODUCT INFORMATION

DIMENSIONS

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

Additional sizes 21mm, 33mm & >40mm not typically stocked, therefore omitted.