Seal Refurbishment Services

Elastomer Chemical Compatibility

Seal Face Chemical Compatibility

DIAPHRAGM SEALS

H2US

  • Suits US imperial sizes
  • Short working length
  • Alternate drive band design

H2US suits the same US imperial standards as H21, but has a shorter working length and  wider profile. The drive band is designed differently such that the spring is positioned up to a lip that is almost in-line with the seal face.

PARTS

A

B

C

D

E

F

G

H

Seat Cup

Seat (CM Standard)

Rotary Face

Retainer

Rubber Diaphragm

Spring

Drive Band

Spring Cap

  • Operating conditions

EQUIVALENT

Temperature:

Pressure:

Speed:

-40°C to 200°C

up to 12.5 bar, 180 psi

up to 18m/s, 3500 fpm

  • Material options

43 CU Short

Type 2, 2B*

P04U

Type A4*

MG921

Rotary Face:

Stationary Face:

Elastomer:

Metal Parts

CAB, SiC

CER, SiC, TC

N, V

Stainless Steel

STANDARD SEAT

CM, G55

OG

US imperial cup seat

US imperial o-ring seat

ALTERNATIVE SEAT

N, G50

W

Euro imperial cup seat

Euro imperial o-ring seat

DATA SHEET

H2US - Data Sheet

TYPE 2 - US

PRODUCT INFORMATION

DIMENSIONS

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