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 | |||
|---|---|---|---|---|
| Temperature | PTFE-layer | Graphit-layer | PTFE-layer | Graphit-layer |
| max. 250°C | max. 500°C | max. 250°C | max. 500°C | |
| Surface pressure | (20°C) | (20°C) | (300°C) | (300°C) |
| VU | 20 N/mm² | 20 N/mm² | – | 30 N/mm² |
| VO | 500 N/mm² | 500 N/mm² | – | 500 N/mm² |
| Flange surface: | ||||
| recommended roughness depth: | 25–50 µm | 12,5–25 µm | 25–50 µm | 12,5–25 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) | d1 | d2 | d3 |
|---|---|---|---|---|
| 10 | – | 17 | 33 | 20 |
| 15 | 1/2 | 19 | 35 | 22 |
| 20 | 3/4 | 24 | 40 | 27 |
| 25 | 1 | 30 | 50 | 34 |
| 32 | 1 1/4 | 40 | 60 | 44 |
| 40 | 1 1/2 | 44 | 72 | 48 |
| 50 | 2 | 58 | 90 | 64 |
| 65 | 2 1/2 | 72 | 104 | 78 |
| 80 | 3 | 85 | 117 | 91 |
| 100 | 4 | 110 | 142 | 116 |
| 125 | 5 | 135 | 167 | 141 |
| 150 | 6 | 166 | 198 | 172 |
| 200 | 8 | 220 | 252 | 226 |
| 250 | 10 | 275 | 307 | 281 |
| 300 | 12 | 325 | 357 | 331 |
| 350 | 14 | 370 | 402 | 376 |
| 400 | 16 | 424 | 456 | 430 |
| 500 | 20 | 430 | 462 | 436 |
| 600 | 24 | 630 | 662 | 636 |
| 700 | 28 | 735 | 767 | 741 |
| 800 | 32 | 838 | 870 | 844 |
| 900 | 36 | 940 | 972 | 946 |
| 1000 | 40 | 1040 | 1072 | 1046 |
| 1200 | 48 | 1248 | 1280 | 1254 |
| 1400 | 56 | 1448 | 1480 | 1454 |
| 1600 | 1658 | 1690 | 1664 | |
| 1800 | 1855 | 1887 | 1861 | |
| 2000 | 2058 | 2090 | 2064 | |
| 2200 | 2265 | 2297 | 2271 | |
| 2400 | 2460 | 2492 | 2466 | |
| 2600 | 2660 | 2692 | 2666 | |
| 2800 | 2875 | 2907 | 2881 | |
| 3000 | 3075 | 3107 | 3081 |
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)