Expanded graphite yarn
The Spiral Wound Gaskets can be used to seal fluid pressure up to 250 bar cryogrnices temperature as low as -2000C and up to elevated temperature of 10000C Products are widely used in the oil, gas, petrochemical process and engineering industries.
We can produce according to ANSI B16.5,
MSS SP-44, API605, DIN, JIS, JPI, BS1560
Reinforced Graphite sheet is comprised of expanded graphite sheet and various steel sheets such as tanged, flat or mesh. It has character of thermally stability, high strength and no cold flow etc. It is an ideal material of all kinds of reinforced graphite gaskets, engine heat gaskets
Length: 1500mm;1000mm
Width : 1000mm
Thickness:1.2 to 3.0mm
Service range
Reinforced inserted material Construction ííStability under compressive stress (N/mm2) Temperature
Expanded graphite sheet & rolls are selected from the high purity natural flake graphite. They are made through the advanced chemical treatment and mechanical procedure etc. This products inhance excellent properties such as ther- mal stable, with stand high and low temperature, corrosion, resistance. It has been widely used for die formed packing rings and various kinds of gaskets.
Length: up to 1500mm
Width : up to 1500mm
Thickness: 0.2 to 3.0mm
Density: 0.7 to 1.2g/cm3
Natural graphite flake is chemically treated to form Graphite Intercalation Compound
This intercalation compound is then rapidly heated to decomposition
The result is a rapid expansion of the panicle size
The bulk density of the yvorm-like graphite powders is about 0.003g/cc
Then they are formed into graphite sheets by rolling.
Principal applications
Glands
Gaskets used in flanges,covers of observation holes,level meters
Direct attach to themetal surfaces for gas phase sealing effectively
Especially the expanded graphite rolls can be used as a material for automatic producing lines.
Length:30M;50M;80M
Width: up to 1500mm
Thickness:0.2 to 1.0mm
Density:0.7 to 1.1 g/cm3
The packing is a pure PTFE fiber yarn packing braided into wquare cross section and impregnated with PTFE dispersion.High cross-sectional density and structural strength. Inert to almost all chemicals and has great resistance to mechanical attack
Low coeffient of friction results in easy shaft running
Long lubricant squeezed out under operating pressure.
High- quality combination of PTFE with incorporated graphite and reinforced edges from armada yarn to prevent gap extrusions within the high pressure and temperature range. Good sliding velocity and thermal conductivity. It is recommended for piston pumps up to 500 bar long service live. It can be used to seal water.
Sewage water. Hot water. Oils. Greases. Gases. Weak acids and alkaline solutions
Non asbestos sheet
Length:1000mm;1350mm;2000mm;4000mm
Width: 1500mm
Density:1.8 to 2.0g/cm3
Working pressure:100 bar
Working Temperature:370 D.C.(Color:Blue)
Working Temperature:400 D.C.(Color:Black)
Compressibility(astm f36): 7 to 17%
Recovery(DASTM 13 16Hrs-300 D.C. - 50N/mm): 20 N/mm
Gas infiltration(DIN 3535/4):0.5ml/min
Immersion test (ASTM F146)
Immersion in ASTM oil#3 under
5Hrs/150D.C.
Thickness increase: 10%
Tehsile strength:8N/mm
Sulfuric-Acid under 48 Hrs/23D.C.
Loss on ignition(DIN52911):26%
Density(DIN3754): 1.85g/cm3
PH value:2 to 14
Reinforced asbestos sheet
The material compounded by choosing common white,grey,or black sheets based on the diffrent technical requirements and carbon steel flat or tanged sheet,coated with graphite powder,anti-adhesive
Tanged reinforced insertioin
Thickness:1.0 to 3.0mm
Length :1000mm;500mm
Width :1500mm;1000mm;500mm
Flat adhesive bond insertion
Thickness:0.8 to 3.0mm
Length :1000mm;500mm
Width :1500mm;1000mm;500mm
