Products Description

Technical Specification & Payment and Trade Terms & Delivery and Packaging

Desc.	O ring seal	Part No	3679933 4299124
Brand Name	Cummins, Detroit, DCEC, CCEC, XCEC etc.	Other parts	pls contact freely if you need other P/N
Engine Type	Diesel engine, Gas engine, Diesel Generator, Marine engine, Construction engine Pump engine etc.	Spare Type	Wearing spare parts, maintenance tools, repair kit, upper and lower engine gasket kit.
Condition:	Original and brand new	Applicatble industriy	Retail, marine engines, Construction works, Energy & Mining etc
Key Word:	Original spare parts and engine repair tool kits	Trade terms	FOB EXW CIF DDU DDP, Door to door is available in some countries.
Delivery time:	Most parts are in stock, bulk order based on qty	Payment	T/T, L/C, D/A, Alipay, Western Union, Paypal etc.
Place of origin	China/USA/Japan/Austria/Mexico	Package	Neutral or original packaging
Engine model	NH/NT 855 4B3.9, ISBE CM2150, ISD4.5 CM2150, QSB6.7 M CM2250, ISF3.8 CM2220 F103, QSB6.7 CM2250 EC, ISB 5.9 G CM2180, ISBE CM800, ISF3.8 CM2220 AN, ISB6.7 CM2250, B4.5 RGT, ISF2.8 CM2220 F101, B5.9 G, QSB3.9 30 CM550, QSB5.9 30 CM550, G3.9, ISD6.7 CM2150 SN, QSB6.7 CM2250, ISF2.8 CM2220 EC, ISF3.8 CM2220 IAN, B6.7S, QSB7-DM CM850, ISB6.7 CM2350 B101, ISB CM850, ISBE4 CM850, ISF3.8 CM2220, B4.5, ISB CM2150, ISF2.8 CM2220 AN, ISB6.7 CM2150 SN, QSB6.7 CM850, B5.9 G CM558, B4.5S, ISB6.7 CM2150 SQ, 6B5.9, ISB4.5 CM2150, B5.9 GAS PLUS CM556, ISF2.8 CM2220 IAN, QSB4.5 30 CM550, ISB4.5 CM2150 SN, QSB5.9 CM850, ISB CM550, ISF2.8 CM2220, QSB4.5 CM850, QSB5.9 44 CM550, F3.8 F102, B GAS INTERNATIONAL CM556, B5.9 LPG PLUS CM556, QSB4.5 CM2250 EC

Material classification
Natural rubber NR
Natural Rubber is made from latex collected from rubber trees and is a polymer of isoprene. It has good wear resistance, high elasticity, tensile strength, and elongation. It is prone to aging in the air, becomes sticky when exposed to heat, expands and dissolves easily in mineral oil or gasoline, and is alkali resistant but not strong acid resistant· It is a raw material for making adhesive tape, hoses, and rubber shoes, and is suitable for making shock absorption parts and products used in liquids with hydroxide ions such as automotive brake oil and ethanol.
Styrene butadiene rubber S B R
Styrene Butadiene Copolyme is a copolymer of butadiene and styrene. Compared with natural rubber, it has a uniform quality, fewer foreign objects, but weaker mechanical strength, and can be mixed with natural rubber for use.
Advantages:
·Low cost non oil resistant materials
·Good water resistance, hardness below 70, with good elasticity
·Poor compression distortion at high hardness
·Can use most neutral chemicals and dry, nourishing organic ketones
Disadvantages:
·It is not recommended to use strong acids, ozone, oils, esters, fats, and most hydrocarbons· Widely used in the tire industry, footwear industry, and? Fabric and conveyor belt industries, etc.
Butyl rubber IIR
Butyl rubber is polymerized from isobutene and a small amount of isoprene, retaining a small amount of unsaturated groups for sulfur addition. Due to the steric hindrance of methyl groups, the movement of molecules is less than other polymers, resulting in less gas permeability, high resistance to heat, sunlight, and ozone, and good electrical insulation; It has strong resistance to polar solvents such as alcohols, ketones, esters, etc., and is generally used in the temperature range of -54~110 ℃.
Advantages:
·Impermeability to most general gases
·Has good resistance to sunlight and ozone
·Can be exposed to animal or vegetable oils or oxidizable chemicals
Disadvantages:
·Not suitable for use with petroleum solvents, kerosene, and aromatic hydrogen· Rubber parts used for producing chemical resistant and vacuum equipment.
Hydrogenated nitrile rubber HNBR
Hydrogenated Nitrile is a type of nitrile rubber in which some double chains are removed after hydrogenation. After hydrogenation, its temperature and weather resistance are significantly improved compared to general nitrile rubber, and its oil resistance is similar to that of general nitrile rubber. The general temperature range for use is -25~150 ℃.
Advantages:
·Compared to nitrile rubber, it has better wear resistance
·Has excellent resistance to corrosion, tension, tear, and compression distortion
·Has good resistance to ozone, sunlight, and other atmospheric conditions
·Generally speaking, it is suitable for cleaning agents used in laundry or dishwashing
Disadvantages:
·Not recommended for use in alcohol, ester, or aromatic solutions· The air conditioning refrigeration industry is widely used as a sealing element in environmentally friendly refrigerant R134a systems.
·Automotive engine system seals.
EPDM ethylene propylene adhesive
Ethylene propylene rubber is a copolymer of ethylene and propylene, with a main chain that is not double stranded. Therefore, it has excellent heat resistance, aging resistance, ozone resistance, and stability, but cannot be sulfurized. To solve this problem, a small amount of the third component with double chains can be introduced into the EP main chain and sulfur can be added to form EPDM, which is generally used in the temperature range of -50~150 ℃. Excellent resistance to polar solvents such as alcohols, ketones, ethylene glycol, and phosphate hydraulic oils.
Advantages:
·Has good weather resistance and ozone resistance
·Excellent water resistance and chemical resistance
·Alcohols and ketones can be used
·High temperature vapor resistance and good impermeability to gases
Disadvantages:
·Not recommended for food use or exposure to aromatic hydrogen· Seals for high-temperature steam environments.
·Seals or parts of bathroom equipment.
·Rubber parts in the braking system.
·The seal in the radiator (car radiator).
Nitrile rubber NBR
Nitrile rubber is formed by copolymerization of acrylonitrile and butadiene, with an acrylonitrile content ranging from 18% to 50%. The higher the acrylonitrile content, the better the resistance to petrochemical oil and hydrocarbon fuel oil. However, its low-temperature performance deteriorates, and it is generally used in the temperature range of -25~100 ℃. Nitrile rubber is one of the most commonly used rubbers for oil seals and O-rings.
Advantages:
·Has good properties of oil resistance, water resistance, solvent resistance, and resistance to high-pressure oil.
·Has good compression deflection, wear resistance, and elongation.
Disadvantages:
·Not suitable for use in polar solvents such as ketones, ozone, nitrohydrocarbons, MEK, and chloroform· Used to make rubber parts, especially sealing parts, for fuel tanks, lubricating oil tanks, and fluid media such as petroleum hydraulic oil, gasoline, water, silicone grease, silicone oil, diester lubricating oil, and ethylene glycol hydraulic oil. It can be said that it is the most widely used and cost-effective rubber seal.
Chloroprene rubber CR
Neoprene and Polychromoprene are polymerized from chloroprene monomers. The vulcanized rubber has good elasticity and wear resistance, is not afraid of direct sunlight exposure, has particularly good resistance to atmospheric aging, is not afraid of intense distortion, is not afraid of refrigerants such as dichlorodifluoromethane and ammonia, is resistant to dilute acid and silicone ester lubricating oil, but not phosphate ester hydraulic oil. Easy to crystallize and harden at low temperatures, with poor storage stability, and large expansion in mineral oils with low aniline points. The general temperature range for use is -50~150 ℃
Advantages:
·Good elasticity and good compression deformation.
·The formula does not contain sulfur, making it very easy to make
·Has anti animal and vegetable oil properties
·Not affected by neutral chemicals, esters, fats, various oils, solvents, etc
·Has flame retardant properties
Disadvantages:
·It is not recommended to use chemicals such as strong acids, nitrohydrocarbons, esters, chloroform, and ketones· Seals resistant to R12 refrigerant· Rubber parts or seals on household appliances.
·Suitable for making various parts that come into direct contact with the atmosphere, sunlight, and ozone.
·Suitable for various rubber products that are resistant to combustion and chemical corrosion.
Chlorosulfonated polyethylene adhesive
Chlorosulfonated polyethylene is a synthetic rubber patented by DuPont. Excellent heat resistance, weather resistance, and ozone resistance; It also has good acid resistance and is commonly used in areas with oxidizing drugs (nitric acid, sulfuric acid). The general temperature range for use is -45~120 ℃.
Advantages:
·Has good resistance to ozone, oxidation, and flames
·The physical properties are similar to chloroprene rubber and it has better acid resistance
·Excellent abrasion resistance
·Having the same low friction surface as nitrile rubber
·The resistance to oil and solvents is between nitrile rubber and chloroprene rubber
·Suggest using water to prevent leakage
Disadvantages:
·It is not recommended to be exposed to concentrated oxidizing acids, nitrohydrocarbons, esters, ketones, and aromatic hydrocarbons.
Silicone rubber SI
The main chain of silicone rubber is composed of silicon (- si-o-si). Has excellent heat resistance, cold resistance, ozone resistance, and resistance to atmospheric aging. Has excellent electrical insulation performance. The tensile strength is inferior to ordinary rubber and does not have oil resistance. Advantages:
·After being formulated, the tensile strength can reach 1500PSI and the tear resistance can reach 88LBS
·Good elasticity and good compressibility
·Has good resistance to neutral solvents
·Has excellent heat resistance
·Has excellent cold resistance
·Excellent resistance to ozone and oxide erosion
·Excellent electrical insulation performance
·Excellent insulation and heat dissipation
Disadvantages:
·Not recommended for use in most concentrated solvents, oils, concentrated acids, and diluted sodium hydroxide· Seals or rubber parts used in the household appliance industry, such as rubber parts in electric kettles, electric irons, and microwave ovens.
·Seals or rubber parts in the electronics industry, such as shock absorbers in phone buttons, DVDs, and seals in cable connectors.
·Seals on various items that come into contact with the human body, such as kettles, water dispensers, etc.
Silicone fluorine rubber FLS
Fluorinated Silicone Rubber is a type of silicone rubber that has been fluorinated, and its general properties combine the advantages of both fluororubber and silicone rubber; It has excellent oil resistance, solvent resistance, fuel oil resistance, and high and low temperature resistance, and is generally used at temperatures ranging from -50 to 200 ℃.
Advantages:
·Suitable for special purposes, such as requiring resistance to the erosion of oxygen-containing chemicals, solvents containing aromatic hydrogen, and solvents containing chlorine.
Disadvantages:
·It is not recommended to be exposed to brake fluid, ketones, and callus solutions on spacecraft components.
Fluororubber FPM
Fluoro Carbon Rubber is a rubber molecule that contains fluorine, and there are various types depending on the fluorine content (i.e. monomer structure). The widely used hexafluoride fluororubber was first launched by DuPont under the trade name "Viton". High temperature resistance is superior to silicone rubber, with excellent chemical resistance, resistance to most oils and solvents (excluding ketones and esters), weather resistance, and ozone resistance; Cold resistance is relatively poor, and the general temperature range for use is -20~250 ℃. The special formula can withstand low temperatures up to -40 ℃. Advantages:
·Can withstand heat up to 250 ℃
·It has the ability to resist most oil products and solvents, especially all acids, aliphatic hydrocarbons, aromatic hydrocarbons, and animal and vegetable oils
Disadvantages:
·Not recommended for use in ketones, low molecular weight esters, and mixtures containing nitrate· Cars, locomotives, diesel engines, and fuel systems.
·Seals for chemical plants.
Perfluorinated rubber FFPM
Perfluoroelastomer
Advantages:
·Best heat resistance characteristics
·Excellent anti chemical properties
·Low Outgassing Characteristics
·Excellent anti Plasma properties
Disadvantages:
·Poor low-temperature resistance
·High raw material prices
·The production difficulty is high. The perfluorinated series products are widely used in the semiconductor industry and information related industries, including PVC, CVD, etching processes, and various high vacuum sealing processes in thin film processes.
Acrylate rubber ACM
Polyacrylate rubber is an elastic body polymerized from Alkyl Ester Acrylate as the main component. It has good resistance to petrochemical oil, high temperature, and weather, but weaker mechanical strength, compression deformation rate, and water resistance, slightly inferior to general oil resistant adhesives. The general temperature range for use is -25~170 ℃.
Advantages:
·Suitable for automotive transmission oil
·Has good antioxidant and weather resistance
·Capable of resisting bending deformation
·Excellent resistance to oil products
·Suitable for automotive transmission systems and power steering wheels
Disadvantages:
·Not suitable for use in hot water
·Not suitable for use in brake fluid
·Not capable of withstanding low temperatures
·Not suitable for automotive transmission and power system seals in phosphate esters.
Polyurethane rubber PU
Urethane rubber has excellent mechanical properties, with high hardness, elasticity, and wear resistance that are difficult to compare with other types of rubber; The aging resistance, ozone resistance, and oil resistance are also quite good. The general temperature range for use is -45~90 ℃.
Advantages:
·Wear resistance and high pressure resistance
Disadvantages:
·Not resistant to high temperature, high pressure and wear-resistant seals in industry, such as hydraulic cylinder seals.
·High voltage and high charge system
Material List
Comparison of material properties