Products
VR 99
Material
VR 99 is an asbestos-free gasket material with a strong reinforcement of expanded stainless steel 1.4404 (316L) which is 0.5 mm thick. The material is physiologically safe and contains no color pigments. It is composed of aramide fibers and other asbestos substitutes which are resistant to high temperatures and are processed with high-grade elastomers under elevated pressure and temperature.
Properties
VR 99 is resistant to media such as oils, solvents, fuels, steam, saline solutions, refrigerating agents (freons), alcohols, and many others.
Due to the expanded metal mesh reinforcement, the gasket material features a number of outstanding properties as compared to conventional composite materials. VR 99 exhibits very high tensile strength, high stress and shear resistance, and is extremely easy to handle. VR 99 exhibits far lower values for hot creep than conventional composite materials.
The expanded metal mesh reinforcement permits VR 99 to cope better with higher pressures and temperatures than conventional non-reinforced materials. It is also suitable for sealing hot water and steam up to 200 °C in stationary applications and with an installation surface pressure of at least 75 N/mm². Please consult us if you have a specific application.
In spite of its expanded metal reinforcement, the gasket material exhibits high sealability with gases – a novel feature with metal-reinforced fiber gasket materials.
Application
for DIN and ANSI flanges, fittings, pumps and apparatus in chemical plants, refineries, power stations as well as in shipbuilding and in high-pressure gas supply plants and refrigeration engineering
in general for sealed joints in which high mechanical and/or thermal stresses or alternating loads occur
for sealing components with relatively narrow webs, e.g. heat exchangers, steam fittings, air and refrigerating compressors as well as all threaded couplings
also suitable for sealed joints subject to high mechanical stress in IC engines, e.g. for sealing intake manifolds and timing cases.
Surfaces
As standard, both sides of VR 99 are coated with a non-stick, high-friction layer that greatly facilitates disassembly. In most cases, additional surface treatment is unnecessary.
However, a graphite coating on one or both sides of the gasket is required when used with components that rotate on the gasket during assembly, e.g. in threaded couplings, radiator plugs, etc., as a low friction value is required in these cases.
Technical Data
(nominal thickness 1.0 mm)
Density | g/cm³ | ≈ 2.6 |
Ignition loss acc. to DIN 52 911 | % | < 22 |
Tensile strength | ||
across grain | N/mm² | > 60 |
with grain | N/mm² | > 33 |
Residual stress acc. to DIN 52 913 | ||
16 h, 300 °C | N/mm² | ≈ 42 |
16 h, 175 °C | N/mm² | ≈ 46 |
Compressibility and recovery | ||
acc. to ASTM F 36, procedure J | ||
compressibility | % | ≈ 5 |
recovery | % | ≈ 60 |
Sealability against nitrogen | ||
acc. to DIN 3535, part 6 FA | mg/(s·m) | ≈ 0.05 |
Swelling acc. to ASTM F 146 | ||
in IRM 903 Oil (replaces ASTM Oil No. 3) | ||
5 h, 150 °C | ||
increase in thickness | % | < 10 |
increase in weight | % | < 10 |
in ASTM Fuel B | ||
5 h, room temp. | ||
increase in thickness | % | < 10 |
increase in weight | % | < 10 |
in water / antifreeze (50:50) | ||
5 h, 100 °C | ||
increase in thickness | % | < 5 |
increase in weight | % | < 5 |
Content of water-soluble chloride | ppm | < 100 |
Minimum installed surface pressure σVU/L | ||
for sealing against helium acc. to | ||
Reinz Test Method RPM 505: | ||
Leakage rate 10-2 mbar·l/s·m = 0.6 cm³/min·m | ||
at 10 bar | N/mm² | 60 |
at 25 bar | N/mm² | 80 |
at 50 bar | N/mm² | 100 |
Short-term peak temperature | °C | 400 |
Maximum continuous temperature | °C | 275 |
for steam up to | °C | 240 |
Maximum operating pressure | bar | 300 |
Max. continuous temperature and max. pressure must not occur simultaneously.
Please contact us for sealing parameters.
The data quoted above are valid for the material “as delivered” without any additional treatment. In view of the countless possible installation and operating conditions, definitive conclusions cannot be drawn for all applications regarding the behavior in a sealed joint. Therefore, we do not give any warranty for technical data, as they do not represent assured characteristics. If you have any doubt, please contact us and specify the exact operating conditions.
Technical Data
(nominal thickness 1.5 mm)
Density | g/cm³ | ≈ 2.45 |
Ignition loss acc. to DIN 52 911 | % | < 24 |
Tensile strength | ||
across grain | N/mm² | > 52 |
with grain | N/mm² | > 33 |
Residual stress acc. to DIN 52 913 | ||
16 h, 300 °C | N/mm² | ≈ 33 |
16 h, 175 °C | N/mm² | ≈ 43 |
Compressibility and recovery | ||
acc. to ASTM F 36, procedure J | ||
compressibility | % | ≈ 5 |
recovery | % | ≈ 60 |
Sealability against nitrogen | ||
acc. to DIN 3535, part 6 FA | mg/(s·m) | ≈ 0.05 |
Swelling acc. to ASTM F 146 | ||
in IRM 903 Oil (replaces ASTM Oil No. 3) | ||
5 h, 150 °C | ||
increase in thickness | % | < 10 |
increase in weight | % | < 10 |
in ASTM Fuel B | ||
5 h, room temp. | ||
increase in thickness | % | < 10 |
increase in weight | % | < 10 |
in water / antifreeze (50:50) | ||
5 h, 100 °C | ||
increase in thickness | % | < 5 |
increase in weight | % | < 5 |
Content of water-soluble chloride | ppm | < 100 |
Minimum installed surface pressure σVU/L | ||
for sealing against helium acc. to | ||
Reinz Test Method RPM 505: | ||
Leakage rate 10-2 mbar·l/s·m = 0.6 cm³/min·m | ||
at 10 bar | N/mm² | 45 |
at 25 bar | N/mm² | 60 |
at 50 bar | N/mm² | 80 |
Short-term peak temperature | °C | 400 |
Maximum continuous temperature | °C | 260 |
for steam up to | °C | 240 |
Maximum operating pressure | bar | 250 |
Max. continuous temperature and max. pressure must not occur simultaneously.
Please contact us for sealing parameters.
The data quoted above are valid for the material “as delivered” without any additional treatment. In view of the countless possible installation and operating conditions, definitive conclusions cannot be drawn for all applications regarding the behavior in a sealed joint. Therefore, we do not give any warranty for technical data, as they do not represent assured characteristics. If you have any doubt, please contact us and specify the exact operating conditions.
Technical Data
(nominal thickness 2.0 mm)
Density | g/cm³ | ≈ 2.3 |
Ignition loss acc. to DIN 52 911 | % | < 26 |
Tensile strength | ||
across grain | N/mm² | > 45 |
with grain | N/mm² | > 33 |
Residual stress acc. to DIN 52 913 | ||
16 h, 300 °C | N/mm² | ≈ 25 |
16 h, 175 °C | N/mm² | ≈ 40 |
Compressibility and recovery | ||
acc. to ASTM F 36, procedure J | ||
compressibility | % | ≈ 5 |
recovery | % | ≈ 60 |
Sealability against nitrogen | ||
acc. to DIN 3535, part 6 FA | mg/(s·m) | ≈ 0.05 |
Swelling acc. to ASTM F 146 | ||
in IRM 903 Oil (replaces ASTM Oil No. 3) | ||
5 h, 150 °C | ||
increase in thickness | % | < 10 |
increase in weight | % | < 10 |
in ASTM Fuel B | ||
5 h, room temp. | ||
increase in thickness | % | < 10 |
increase in weight | % | < 10 |
in water / antifreeze (50:50) | ||
5 h, 100 °C | ||
increase in thickness | % | < 5 |
increase in weight | % | < 5 |
Content of water-soluble chloride | ppm | < 100 |
Minimum installed surface pressure σVU/L | ||
for sealing against helium acc. to | ||
Reinz Test Method RPM 505: | ||
Leakage rate 10-2 mbar·l/s·m = 0.6 cm³/min·m | ||
at 10 bar | N/mm² | 34 |
at 25 bar | N/mm² | 45 |
at 50 bar | N/mm² | 60 |
Short-term peak temperature | °C | 400 |
Maximum continuous temperature | °C | 250 |
for steam up to | °C | 240 |
with metal inner eyelet (ME) |
|
|
for steam up to | °C | 275 |
Maximum operating pressure | bar | 200 |
Max. continuous temperature and max. pressure must not occur simultaneously.
Please contact us for sealing parameters.
DIN 28091-2: | ||
Cold creep εKSW | % | 5 – 8 |
Cold recovery εKRW | % | 2 – 4 |
Hot creep during service εWSW/T | % | 4 – 7 |
Hot recovery εWRW/T | % | ≈ 0.60 |
Recovery R | mm | ≈ 0.01 |
Specific leakage rate λ | mg/(s·m) | < 0.1 |
Residual surface pressure | % | > 50 |
after 1000 h (in air at 100 °C) | ||
| Please contact us for sealing parameters. | ||
The data quoted above are valid for the material “as delivered” without any additional treatment. In view of the countless possible installation and operating conditions, definitive conclusions cannot be drawn for all applications regarding the behavior in a sealed joint. Therefore, we do not give any warranty for technical data, as they do not represent assured characteristics. If you have any doubt, please contact us and specify the exact operating conditions.
Form of delivery
Sheets
49” x 59”
Nominal thicknesses and tolerances acc. to ASTM F 104
Dimensional limits within a shipment
1.00 | ±0.10 |
1.50 | ±0.15 |
2.00 | ±0.20 |
Max. thickness variation in a sheet:
0.1 mm for sheet thickness ≤1.00 mm, and 0.2 mm for thickness >1.00 mm
Products
Download the Victor Reinz Product Catalog here.
