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Cixi City,Zhejiang,China 315300
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Gaskets are available to EN 1514-1, ASME B 16.21. Custom dimensions are available on request.
Thickness:1.0mm~ 20.0mm
| Quantity: | |
|---|---|
Reinforced inserted material | Temperature(°C) | Compressibility( %) | Recovery(%) | Standard | |
In oxidizing media | In non oxidizing media | ||||
carbon steel sheet | -10~450 | -10~550 | 30~35 | 15~20 | Non-standard |
SS304,SS316 | -240~450 | -200~600 | 30~40 | 15~30 | EN1514-1 |
SS304,SS316 Flat sheet | -240~450 | -200~600 | 40~50 | 10~15 | ASME B16.21 |
SS304 Mesh | -240~450 | -200~600 | 30~35 | 15~20 | HGT 20606 |
The DH-G-SF Xinsen-G Graphite Gasket is a premium high-temperature sealing solution made from Xinsen-G expanded graphite (99.5% carbon content) bonded with stainless steel core mesh. Produced via calendering and die-cutting, it balances flexibility and structural integrity, meeting ASME BPVC III, API 601, and ISO 15797 standards. Standard sizes (50×50mm to 2500×2500mm, thickness 0.5mm-15mm) and custom shapes (ASME B16.5 flanges) are available, with a 24-month shelf life (dry storage).
Thermal Resistance: Continuous 500℃ (oxidizing), 650℃ (inert gas); short-term resistance up to 700℃ (30 minutes).
Pressure Capacity: Static pressure up to 30MPa, dynamic pressure up to 18MPa – exceeds non-reinforced graphite gaskets by 40%.
Chemical Compatibility: Resists acids (98% H₂SO₄), alkalis (40% NaOH), and molten salts; corrosion rate < 0.03mm/year in seawater.
Mechanical Strength: Tensile strength 15MPa, compression rebound ≥ 50%; no fracture after 500 flex cycles.
Anti-Oxidation: Ceramic coating reduces weight loss to < 0.8% after 1000h at 500℃ (ASTM G113).
Power Generation: Boiler manholes (450℃, 15MPa), turbine exhaust flange seals.
Oil Refining: Hydrocracker reactor flanges (400℃, 25MPa), catalytic converter gaskets.
Chemical Processing: Autoclave doors (350℃, 20MPa), chlor-alkali electrolyzer seals.
Metallurgy: Furnace flue gas duct flanges, molten metal transfer pipe joints.
Shedding (common in pure graphite gaskets) is eliminated by:
Stainless steel core reinforcement (316L mesh, 0.1mm thickness) that binds graphite particles.
PTFE surface treatment (5μm coating) that seals surface pores.
Ensuring flange roughness Ra 0.6-1.0μm (too smooth surfaces cause powder transfer).
Xinsen-G graphite has higher expansion ratio (300:1 vs. 200:1) and lower ash content (<0.5% vs. 1.2%), resulting in:
25% better compression rebound.
30% lower leakage rate.
40% longer service life in high-temperature applications.
Yes, the oxygen-clean variant (degreased, moisture <0.1%) meets ASTM G93-17 standards for oxygen service. Operating limits: 200℃, 15MPa; avoid oil-based lubricants (risk of ignition). Ideal for oxygen storage tank flanges.
