Asbestos sealing material

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I would also like to share with you the material of the asbestos sealing material XB-150 asbestos rubber sheet: it is made of asbestos and rubber as the main raw materials and is pressed. use: Suitable for general plumbing equipment, low-pressure water pipes and steam pipe sealing gasket materials. heat resistance: 150℃ working pressure: 0.8Mpa XB-200 asbestos rubber sheet material: It is pressed with asbestos and rubber as the main raw materials. use: Suitable for general plumbing equipment, low-pressure water pipes and steam pipe sealing lining materials. heat resistance: 200℃ working pressure: 1.5Mpa XB-300 asbestos rubber sheet material: It is made of high-quality asbestos and rubber as the main raw materials. use: It is suitable for sealing gasket materials at pipe flange joints with media such as water, steam, air, ammonia and alkali liquid. heat resistance: 300℃ working pressure: 3.0Mpa XB-350 asbestos rubber sheet material: It is made of high-quality asbestos and rubber as the main raw materials. use: It is suitable for sealing gasket materials at flange joints of equipment pipelines with media such as water, saturated steam, gas, ammonia, alkali, etc. heat resistance: 350℃ working pressure: 4.0Mpa XB-400 asbestos rubber sheet material: It is made of high-quality medium-length asbestos fiber and rubber as the main raw materials. use: It is suitable for sealing gasket materials at flange joints of equipment pipelines with high temperature and high pressure water, saturated steam, coal gas, inert gas and other media. heat resistance: 400℃ working pressure: 5.0Mpa XB-450 high pressure asbestos rubber sheet material: It is made of high-quality medium-length asbestos fiber and rubber as the main raw materials. use: It is suitable for sealing gasket materials at flange joints of equipment pipelines with high temperature and high pressure water, saturated steam, superheated steam, coal gas, inert gas and other media. heat resistance: 450℃ working pressure: 6.0Mpa clip metal mesh asbestos rubber sheet material: It is made of asbestos and rubber as the main raw materials, pressed with a metal mesh in the middle, and then vulcanized. (The surface can be coated with graphite) Application: Sealing gasket material for water, oil, oil and gas and other media. heat resistance: 450℃ working pressure: 6Mpa NY-150 oil-resistant asbestos rubber sheet material: It is made of high-quality asbestos and oil-resistant synthetic rubber as raw materials, and is pressed and vulcanized. use: It is suitable for sealing gasket materials at the flange joints of oil refining equipment and distillation pipelines, and at the joints of automobile diesel engines and oil pipelines. heat resistance: 150℃ working pressure: 1.5Mpa NY-250 oil-resistant asbestos rubber sheet material: It is made of high-quality asbestos and oil-resistant synthetic rubber as raw materials, pressed and vulcanized. use: It is suitable for sealing gasket materials at the flange joints of oil refining equipment and distillation pipelines, and at the joints of automobile diesel engines and oil pipelines. heat resistance: 250℃ working pressure: 2.5Mpa NY-300 oil-resistant asbestos rubber sheet material: It is made of high-quality asbestos and oil-resistant synthetic rubber as raw materials, pressed and vulcanized. use: It is suitable for sealing gasket materials in fuel, petroleum-based lubricating oil media, joints of aircraft engines and air-conditioning systems, etc. heat resistance: 300℃ working pressure: 4.5Mpa NY-400 oil-resistant asbestos rubber sheet material: It is made of high-quality medium-long fiber asbestos and oil-resistant synthetic rubber as raw materials, pressed and vulcanized. use: Sealing gasket material in oil, solvent, alkali and other media. heat resistance: 400℃ working pressure: 4.0Mpa NY-510 oil-resistant asbestos rubber sheet material: It is made of high-quality long-fiber asbestos and oil-resistant synthetic rubber as raw materials, pressed and vulcanized. use: Sealing gasket material for flange joints of equipment and pipelines with media such as petroleum, animal and vegetable oils, hot oil and other media. heat resistance: 450℃--500℃ Working pressure: 5.0Mpa NY-600 oil-resistant asbestos rubber sheet material: It is made of high-quality long-fiber asbestos and oil-resistant synthetic rubber as raw materials, pressed and vulcanized. use: Sealing gasket material for flange joints of equipment and pipelines with media such as petroleum, animal and vegetable oils, hot oil and other media. heat resistance: 580℃ Working pressure: 6.0Mpa Clamped metal mesh oil-resistant asbestos rubber sheet material: It is made of high-quality asbestos and oil-resistant synthetic rubber as raw materials, pressed with a metal mesh in the middle, and then vulcanized. use: It is suitable for sealing gasket materials at the flange joints of oil refining equipment and distillation pipelines, and at the joints of automobile diesel engines and oil pipelines. heat resistance: 150℃ working pressure: 1.5Mpa NS-200 acid-resistant asbestos rubber sheet material: It is made of long fiber asbestos and acid-resistant synthetic rubber as raw materials, which are pressed and vulcanized. use: Gasket material for sealing in acidic media. heat resistance: 200℃ working pressure: 2.5Mpa NS-350 acid-resistant asbestos rubber sheet material: It is made of long fiber asbestos and acid-resistant synthetic rubber as raw materials, which are pressed and vulcanized. use: Gasket material for sealing in acidic media. heat resistance: 350℃ working pressure: 4Mpa FNY350 non-asbestos oil-resistant rubber sheet material: made of special fiber and oil-resistant synthetic rubber as the main raw materials, pressed and vulcanized. use: It is used as sealing gasket material at the joints of refining equipment and distillation pipelines, high-pressure vessel flanges, automobile diesel engines, and oil pipeline cooling systems that do not allow the use of asbestos. heat resistance: 350℃ Working pressure: 4Mpa FXB350 Non-asbestos rubber sheet material: special heat-resistant fiber and natural rubber as raw materials, pressed. use: It is used as a sealing gasket material for pipeline flange joints of water, steam, air, gas, alkali and other media instead of asbestos rubber sheets of the same number. heat resistance: 350℃ working pressure: 4Mpa rubber asbestos packing system uses asbestos cloth and asbestos thread (or metal asbestos cloth and thread) as the base material, rubber as the adhesive, and is rolled or braided into a square sealing material. It is suitable for sealing materials on the piston and valve rod of reciprocating pumps in steam engines with pressures of 80kg/cm2 and temperatures below 550°C. 　　Rubber asbestos packing is divided into four grades: XSS550, XS450, XS350, and XS250 according to the applicable vapor degree range. Specifications are 3.0-50.0 mm, tolerance is ±0.3-1.0 mm. Rubber asbestos pan is divided into four grades: XS550, XS450, XS350 and XS250 according to the applicable steam temperature range. Specifications are 3.0-50.0 mm, tolerance is ±0.3-1.0 mm. Its various technical performance indicators comply with JC67-82 regulations. 　　Oil-impregnated asbestos packing system is made of asbestos thread (or metal asbestos thread) impregnated with lubricating oil and surface-coated with graphite, braided or twisted. It is suitable for use as sealing material on rotary shafts, reciprocating piston or valve stems. The medium is steam, air, industrial water, heavy petroleum products. The ultimate steam pressure is 45kg/cm2 and the temperature is below 350℃. 　　Oil-immersed asbestos packing is divided into two grades: YS350 and YS250 according to its applicable temperature range. Oil-impregnated asbestos packing is divided into three types: square type (F), round type (Y), and round twisted type (N). Metal wires can be clamped according to user needs. The specifications and dimensions (circular diameter and square side length) are 3.0-50.0 mm, and the tolerance is 0.3-1.0 mm. Its various technical performance indicators comply with JC68-82 regulations. Asbestos PTFE packing is made of braided pure white asbestos packing, which is then impregnated with PTFE emulsion. 　　It is suitable for sealing filling boxes of rotary motors, reciprocating valve rods, moderate acid and alkali liquids, etc. 　　PTFE-A203 is made of PTFE-AS203 packing treated with special lubricant. Basic size3.2 4.8 6.4 7.9 9.5 11.1 12.7 15.9 19 22.2 25.4 (1/8) (3/16) (1/4) (5/16) (3/8) (7/16) (1/2) (5/8) (3/4) (7/8) -1 kg/m3 0.05 0.1 0.18 0.27 0.37 0.51 0.65 1.02 1.46 1.98 2.62 Braiding Method Square Braid Lattice Bradid Expanded asbestos packing is a flexible packing made of innovative pure expanded graphite threads and braided. The combination of ordinary braided packing and this pure graphite disc with excellent sealing properties makes GR-203 the most effective component to solve sealing problems. 　　Except for a few strong oxidants, it can be used to seal hot water, high temperature and high pressure steam, heat exchange fluid, hydrogen, ammonia, organic solutions, hydrocarbons, cryogenic liquids, etc. 　　It is a unique and widely available sealing packing. PTFE packing is a packing made of pure PTFE fiber, and the threads are impregnated with PTFE emulsion and treated with special lubricant. 　　It is highly plastic packing. The volume will not change after long-term use when the filling box has minimum pressure. Its low friction coefficient prevents heating of the shaft surface even at high peripheral speeds. 　　It is suitable for use in high-concentration, highly corrosive and oxidizing chemical products. Graphite PTFE-Soft Packing It is a kind of fiber braided packing made of PTFE containing graphite and anti-corrosion lubricant. Pump shaft seals for all chemical media. 　　The low coefficient of friction gives the packing stability and long life. It also has good tensile strength and high thermal conductivity. Packing with excellent lubricity will not cut the shaft and can reduce the replacement cost of the bushing. 　　It can be used to seal alkali, solvent, water, steam pumps, acids in centrifugal pumps, autoclaves, agitators, mixers, etc., in addition to strong acid oxides (such as aqua regia, fuming nitric acid, fuming sulfuric acid, etc.). Standard mm Size(inch) 3.2 4.8 6.4 7.9 9.5 11.1 12.7 15.9 19 22.2 25.4 (1/8) (3/16) (1/4) (5/16) (3/8) (7/16) (1/2) (5/8) (3/4) (7/8) -1 Kg/m3 0.06 0.12 0.17 0.3 0.48 0.58 0.78 1.15 1.65 2.2 2.84 Braiding Method Square Braid Lattice Bradid Asbestos PTFE packing is braided with more than 95% pure white asbestos threads impregnated with PTFE emulsion. 　　It is a packing with softness, elasticity, uniformity and tightness. 　　It is suitable for sealing filling boxes on rotary motors, reciprocating valve rods, cooling switch valves, moderate acids and halogens, petrochemical and food plants. Carbon fiber packing is made of carbon fiber threads that have been treated with graphite particles and then braided. The surface is then treated with high temperature resistant lubricant. 　　It has the performance of high temperature and high pressure resistance, which can prevent the wear of the packing ring and prevent the volume loss of the packing ring. It can also minimize the electrochemical corrosion of the valve stem by the packing. Carbon PTFE packing is a packing made of carbon fibers pre-impregnated with PTFE emulsion. It is resistant to almost all corrosive chemicals. When used in pumps, due to its good thermal conductivity, frictional heat can be quickly transferred to the stuffing box shell, so the packing will not be damaged. 　　Its wide range of uses makes it an alternative to PTFE-containing asbestos packing. 　　It can seal all corrosive fluids except strong acid oxidizers, organic solvents, and fluids used in centrifugal pumps, column pumps, mixer valves, etc. that do not allow contamination. Asbestos cloth has two types of heat resistance: dusty asbestos cloth and dust-free asbestos cloth.: 250℃, 350℃, 450℃, 500℃, the loss on ignition is not more than 35%. Specifications: Thickness 1.5mm, 3mm width 1m packaging: Woven cloth packaging, net weight 50kg per piece. Asbestos rope asbestos yarn is a yarn spun from chrysotile asbestos fiber or mixed with other fibers. Asbestos thread is made of two or more asbestos threads bonded together. Asbestos yarn and wire sandwiched with metal wire are made of asbestos yarn and metal wire twisted together. Asbestos yarn and thread are used to replicate various asbestos products, and can also be directly used as thermal insulation materials in various thermal equipment and heat transfer systems. Asbestos yarn and thread are classified according to the amount of loss on ignition: There are five models: SS-16, SS-19, SS-24, SS-28, and SS-32. The thickness is expressed in counts. Each kilogram of asbestos yarn and thread has a length of 100 meters. Technical conditions shall be implemented in accordance with JC221-79. Asbestos rope is made of asbestos yarn or thread (asbestos yarn or thread sandwiched with metal wire). It is a thermal insulation or filling material for various thermal equipment and heat transfer systems. 　　There are four types of asbestos ropes: 　　Asbestos twisted rope: Made of twisted asbestos yarn and thread. Models include SN-16 ； Five types: SN-19; SN-24; SN-28; SN-32. Specification: 3～50±0.3～0.5mm. 　　Asbestos round rope: A round rope woven with asbestos yarn and thread. There are five models: SY-16; SY-19; SY-24; SY28; SY-32. Specifications are 6~50±0.5~2 mm. 　　Asbestos square rope: Weave asbestos yarn and thread into a square rope. There are five models: SF-16; SF-19; SF-24; SF-28; SF-32. Specifications: 6～50±0.5～2mm. 　　Asbestos slack rope: Use asbestos wool as the core, and use asbestos yarn and thread to form a soft round rope with a diamond-shaped mesh outer skin. There are three models: SC-24, SC-27, and SC-32. The specifications are 13~50±1~2mm. Other technical requirements are implemented according to JC222 specifications. This post was last edited by JLH on 2008-1-28 20:14 ]