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{"title":"Custom Cut Graphite Gasket Sheet Supplier","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/40\/e4\/42498a2c46558b494f6c48bf5996-200x200-1\/custom_cut_graphite_gasket_sheet_supplier.jpg","attrs":{"Brand Name":"CLINGSEAL","Model Number":"CSG80","Certification":"ISO,SGS","Place of Origin":"CHINA"}}
{"title":"High Density Flexible Graphite Sealing Material","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/40\/e4\/42498a2c46558b494f6c48bf5996-200x200-1\/high_density_flexible_graphite_sealing_material.jpg","attrs":{"Brand Name":"CLINGSEAL","Model Number":"CSG80","Certification":"ISO,SGS","Place of Origin":"CHINA"}}
{"title":"Ultra-Thin Flexible Graphite Gasket Sheet","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/55\/d1\/9c8b40e7f4e3ed5ecfbe6e2c06e1-200x200-1\/ultra_thin_flexible_graphite_gasket_sheet.jpg","attrs":{"Brand Name":"CLINGSEAL","Model Number":"CSG80","Certification":"ISO,SGS","Place of Origin":"CHINA"}}
{"title":"Graphite Gasket Supplier for Compressors","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/ac\/48\/c2616dcd0a9b318f474a86550616-200x200-1\/graphite_gasket_supplier_for_compressors.jpg","attrs":{"Brand Name":"CLINGSEAL","Model Number":"CSG80","Certification":"ISO,SGS","Place of Origin":"CHINA"}}
{"title":"API Standard Flexible Graphite Sealing Material","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/ac\/48\/c2616dcd0a9b318f474a86550616-200x200-1\/api_standard_flexible_graphite_sealing_material.jpg","attrs":{"Brand Name":"CLINGSEAL","Model Number":"CSG80","Certification":"ISO,SGS","Place of Origin":"CHINA"}}
{"title":"Industrial 99.9% Pure Graphite Sheet DIN Standard for Flange Sealing","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/40\/e4\/42498a2c46558b494f6c48bf5996-200x200-1\/industrial_99_9_25_pure_graphite_sheet_din_standard_for_flange_sealing.jpg","attrs":{"Brand Name":"CLINGSEAL","Model Number":"CSG80","Certification":"ISO,SGS","Place of Origin":"CHINA"}}
Manufactured from natural graphite flakes via a dual - stage process of chemical intercalation and thermal exfoliation, flexible graphite materials—including expanded graphite sheets, foil, tape, and strips—are engineered to meet the stringent demands of industrial valve sealing. The exfoliation process produces worm - like graphite structures with an ultralow bulk density of approximately 3 kg/m³. These structures are then compressed into rolls or sheets without binders, ensuring a purity exceeding 99.8% and optimal sealing performance.
Critical Performance Features for Valve Applications
Chemical Resistance
Resists aggressive media such as acids, alkalis, and hydrocarbons in valve bodies and pipelines.
Non - reactive nature prevents contamination in pharmaceutical and food processing valves.
Thermal Stability
Maintains structural integrity from cryogenic temperatures (-200°C) up to 3000°C in high - temperature steam valves.
Low thermal expansion coefficient minimizes dimensional changes under rapid temperature fluctuations.
Dynamic Sealing Efficiency
Self - lubricating properties reduce friction in moving valve components like stems and ball seats.
Impermeable structure prevents leaks in gas, liquid, and slurry handling valves.
Valve - Specific Applications
Valve Stem Sealing
Forms reliable seals in gate, globe, and butterfly valves, compensating for stem wear and pressure variations.
Composite versions with metal reinforcement enhance durability in high - pressure valves (API 6D compliance).
Flange Gaskets
Custom - cut to fit ASME B16.5 flange dimensions, ensuring leak - free connections in pipeline systems.
Corrugated designs improve sealing contact in irregular mating surfaces.
Valve Body Seals
Directly integrated into valve housings to prevent external leakage in critical applications like oil refining and chemical processing.
Customizable Specifications for Valve Systems
Sizes:
Rolls: 1000mm/1500mm width, 30m/50m/80m length.
Sheets: 1000mm x 1500mm, thicknesses from 0.15mm (precision seals) to 5mm (heavy - duty valves).
Density: 0.8–1.25 g/cm³ (adjustable to balance compressibility and pressure resistance).
Surface treatments like PTFE coating for enhanced chemical resistance.
Compliance & Testing
Meets API 607 fire test requirements for hydrocarbon - handling valves.
Compliant with ASME BPVC Section VIII for pressure vessel applications.
Tested for gas leakage (ASTM F137), compression stress relaxation (ASTM F38), and chemical compatibility (NACE TM0177).
Why Choose Our Valve Sealing Solutions?
Longevity: Reduces maintenance intervals with a service life of over 15 years in continuous operation.
Cost - Savings: Minimizes downtime and replacement costs through resistance to erosion and cavitation.
Technical Support: Provides finite element analysis (FEA) for optimizing gasket performance in critical valves.
Engineered to deliver leak - tight performance in the most challenging valve environments.
Item
Standard Value
C concentration
99%
S concentration
<1000ppm
chlorine concentration
<45ppm
tensile strength
4.5MPa
compressibility
>40%
recovery
>10%
Temperature
-200ºC-600ºC
Pressure
20MPa
Terence of Thickness
-0.04mm~+0.04mm
Terence of Dimension
In accordance with your Gasket size
Terence of Density
-0.06~g/cm3+0.06gcm3
Grades Separate :JB/T53392-1999
Mechanical Data
Qualified product
Top Grade
Superior Grade
Density Tolerance g/cm3
<0.4
±0.10
±0.05
≥0.4
±0.07
Tensile Strength MPa
≥3.2
≥4.5
≥5.0
Compression Ratio %
35~55
Rebound Rate %
≥9
≥11
≥12
Stress relaxation rate %
≤10
Ash %
≤6.0
≤3.0
≤1.0
Heat loss on ignation %
450ºC
≤1.0
≤0.5
600ºC
≤20
≤15
Sulphur content
≤1500ppm
≤1000ppm
≤600ppm
Chloride content
≤100ppm
≤50ppm
≤20ppm
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Seller
Year Established:
2005
Total Annual:
6000000-7000000
Employee Number:
20~30
Ecer Certification：
Verified Supplier
Cling - Seal Manufacturing Co., Ltd. stands as a paragon in the global gasket manufacturing and export domain. With a resounding 20 - year tenure in the Chinese market and a remarkable 17 - year presence in the international arena, we have amassed over two decades of unrivaled expertise in crafting ... Cling - Seal Manufacturing Co., Ltd. stands as a paragon in the global gasket manufacturing and export domain. With a resounding 20 - year tenure in the Chinese market and a remarkable 17 - year presence in the international arena, we have amassed over two decades of unrivaled expertise in crafting ...
