Seal Refurbishment Services

Elastomer Chemical Compatibility

Seal Face Chemical Compatibility

MULTI-SPRING SEALS

H58B / H59B

  • Multi-spring arrangement
  • DIN 24960 L1K
  • Balanced

H58B is a balanced, narrow profile, multi-spring & DIN compliant seal commonly used in chemical pumps. Originally designed to use a PTFE wedge as the secondary seal, a more cost effective option using o-rings is now more commonplace (H58B).

 

The original PTFE wedge design is still available if required (H59B).

  • Operating conditions

Temperature:

Pressure:

Speed:

-30°C to 260°C

up to 62 bar, 900 psi

up to 25m/s, 5000 fpm

  • Material options

H59B - PTFE WEDGE

PARTS

A

B

C

D

E

F

G

H

I

J

Seat O-ring

Seat (BP Standard)

Rotary Face

Snap Ring

Metal Housing

O-ring (H58B)

Disc

Multi-Spring

Set Screw

PTFE Wedge

Rotary Face:

Stationary Face:

Elastomer:

Metal Parts

CAB, A1. CAB, SiC

SiC

N, V or EP

Stainless Steel

EQUIVALENT

58B / 59B

M04SU / M04U

1659BS / 1659B

BT-C5.KB

BT-C56.KB

STANDARD SEAT

BP

BO

anti-rotation slot

unslotted

DATA SHEET

H58B - Data Sheet

TYPE 58B - BALANCED

PRODUCT INFORMATION

DIMENSIONS

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