IBK–SAFE–H® Sealing System

Secondary friction connection seal

Developed by IBK Wiesehahn, the secondary friction connection seal with H-profile has created an area of application in the industrial branch.
The successfull conzept of “secondary friction connection” is based on the separation of bracing and sealing.
Every functionary of the seal meet only one function. The seal is made of hard metal-profile and elastic sealing-material.
The sealing-material is measured, that after reaching the block storage, the recovery behavior fully exists.
A overpress of the sealing-material is basically excluded.

Benfits of IBK SAFE-H® Seal:

  • Secondary friction connection (block storage)
  • Seal is chambered (secured against exhaust)
  • High resilience of the flange connection
  • Indenpendently pressure stage dimensions
  • Easier to install regarding centring gauges
  • Simplified warehousing
  • High temperature resistance (up to 1000°C)
  • High pressure resistance (up to 525 bar)
  • Possibility of redefinition of the sealing zone with repair set


Type IBK – SAFE-H® „HZ“ and „OZ“

Seals according Type SAFE-H® „HZ“ will be centred with the outer diameter of the flange.
Seals according Type SAFE-H® „OZ“ will be centred with the screws.

The mounted hooks and lugs are simultaneously helps for a better handling and ensure the best position of the seal. The almost middle position of the sealing strip guaranteed  a similar distance of the lever arm of the bolt force.

The mentioned Dimension are only valid for the welding neck flanges according DIN, ASA and MSS SP-44.

Technical Information:

Working pressure:max. 525 bar
TemperaturePTFE-layerGraphit-layerPTFE-layerGraphit-layer
max. 250°Cmax. 500°Cmax. 250°Cmax. 500°C
Surface pressure(20°C)(20°C)(300°C)(300°C)
VU20 N/mm²20 N/mm²30 N/mm²
VO500 N/mm²500 N/mm²500 N/mm²
Flange surface:
recommended roughness depth:25–50 µm12,5–25 µm25–50 µm12,5–25 µm

Material for the metal carrier: 1.4571 (standard), other stainless steels and steels on request
Material for the layer: graphit, PTFE, mica


Dimensions

The mentioned Dimension are only valid for the welding neck flanges according DIN, ASA and MSS SP-44.

DIN (mm)ASA (Zoll)d1d2d3
10173320
151/2193522
203/4244027
251305034
321 1/4406044
401 1/2447248
502589064
652 1/27210478
8038511791
1004110142116
1255135167141
1506166198172
2008220252226
25010275307281
30012325357331
35014370402376
40016424456430
50020430462436
60024630662636
70028735767741
80032838870844
90036940972946
100040104010721046
120048124812801254
140056144814801454
1600165816901664
1800185518871861
2000205820902064
2200226522972271
2400246024922466
2600266026922666
2800287529072881
3000307531073081


Workmanship

Type – Workmanship:
ST – standard version
STA – standard version with outer centring
STIZ – standard version with inner centring
NF – for tongue and groove
PH – PHOSGEN (jacket monitored systems)
CH – chemical apparatus construction model
CHS – CH with modified profile
SR/MS – Saturn ring / moment brackets
BY – Bayer – works standard
CSS – special system seal
MO – special diary system seal
X – double seal
R – angled version
OV – oval version
HZ – with hook centring
OZ – eyelet centring

Proved leakage values: IBK-SAFE-H
® PTFE 6,9 x 10^-9 mbar x l (m*s)
TA-Air: IBK-SAFE-H
® graphit 3,48 x 10^-7 mbar x l (m*s)