APG’s Graphite Laminate PSM has a 0.1 mm thick perforated stainless-steel insert. The insert aids material handling properties and increases the blow-out resistance. The insert is mechanically bonded to pure exfoliated graphite and therefore does not rely on adhesive. Stable physical properties over the whole temperature range. This material is suitable for hot water and steam at high temperatures up to 842°F (450°C). To prevent the gasket material from sticking to the flange surface (even at high temperatures), the graphite surface can be given a non-stick coating at the customer’s request. With this process, the gasket material’s surface is coated and not impregnated.
Features
Max Pressure: 2900 psi
Mechanically bonded tanged stainless steel insert
Temperature Range: -450ºF to 500ºF
Excellent resistance to chemical attack
Flexibility makes it easy to hand or die cut and simple to install
Indefinite shelf life
Dimensionally stable
Applications
FDA Applications
Fragile piping systems
Certifications
DIN-DVGW
BAM tested
TA-Luft (Clean Air)
FDA conformity (must specify unbranded)
Product Specifications
Typical Values Refer to 1/16'' Thick Material Unless Noted
| Density DIN28090-2 | 1.0 g/cm³ |
| Purity of Graphite DIN 51903 | ≥ 99.0 % |
| Metallic reinforcement | |
| 1 Plain metal | 1 AISI 316 (L) |
| 2 Thickness | 2 0.05 mm |
| 3 Number of sheets | 3 1 |
| Compressibility ASTM F36A | 35 - 45 % |
| Recovery ASTM F36A | 12 - 18 % |
| Creep relaxation DIN 52913 16h/50 MPa/300°C | ≥ 46 MPa |
| KLINGER Cold/Hot Compression Test 50 MPa | |
| 1 Thickness Decrease 23°C |
1 35 - 45 % |
| 2 Thickness Decrease 300°C |
2 1 - 3 % |
| Specific leak rate DIN 28090-2 | < 0.10 mg/s x m |
| Chloride content of graphite layer DIN 28090-2 |
≤ 40 ppm |
| Color |
Grey |
| Non-stick coating |
Upon Request |
Pressure/Temperature Graphs
The pressure/temperature graphs shown are the most current method of determining the suitability of a gasket material in a known environment. However, chemical compatibility must also be considered.
IIn area 1 the gasket material is suitable using common installment practices subject to chemical compatibility
IIn area 2 appropriate measures are necessary for installation of the gasket to ensure maximum performance.
IIn area 3 do not install gaskets in these applications without first contacting APG for technical support service.
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