Seal Refurbishment Services

Elastomer Chemical Compatibility

Seal Face Chemical Compatibility

MULTI-SPRING SEALS

H74UD

  • Double seal
  • Multi-spring arrangement
  • Unbalanced

H74UD is designed for metric shaft sizes with DIN cavities (G9), but non-conforming working length. It is compact in design and uses 2 o-rings as the secondary seal.  Positive mechanical drive is created with set screws.

PARTS

A

B

C

D

E

F

G

Seat O-ring

Seat (G9 Standard)

Rotary Face

O-ring

Thrust Ring

Drive Collar

Set Screw

EQUIVALENT

  • Operating conditions

Temperature:

Pressure:

Speed:

-50°C to 220°C

up to 16 bar, 230 psi

up to 20m/s, 4000 fpm

M74-D

STANDARD SEAT

G9

anti-rotation slot

ALTERNATIVE SEAT

G14

G6

CAB Seat

DIN metric o-ring seat

ALTERNATIVE DRIVE

D22 - Spring loaded drive pin

DATA SHEET

H74UD - Data Sheet

M74-D

PRODUCT INFORMATION

DIMENSIONS

note: dimensions refer to installed length, not 'free' length