Gaskets EPDM SBR Rubber Ring DN250 is on Sale

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China main port
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Min Order Qty:
100 pc
Supply Capability:
100000 pc/month

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Product Description:

1.Description of Gasket :
Ginseal Spiral-wound gaskets comprise a mix of metallic and filler ma- terial. Generally, the gasket has a metal (normally carbon rich or stainless steel) wound outwards in a circular spiral (other shapes are possible) with the filler material (generally a flex- ible graphite) wound in the same manner but starting from the opposing side. This results in alternating layers of filler and metal.

2.Features of Gasket :
• Perfect sealing performance.
• Normal requirement of flange surface finishing which contact with gasket.
• Easy installation and low pre-tightening stress of gasket.
• Heat treatment industry for furnace parts, fans, tube hangers, and baskets and trays to hold small parts.
• Chemical process industry to contain hot concentrated acids, ammonia, and sulfur dioxide.
•  Food processing industry.
• Hot acetic and citric etc.
3.Gasket Images:

Gaskets EPDM SBR Rubber Ring DN250 is on Sale

Gaskets EPDM SBR Rubber Ring DN250 is on Sale

4.Specifications of the Gasket:
1.A good compression ratio and elasticity.
2.With plastic appropriate, after pressing can adapt to the sealing surface and sealing surface uneven fill the gap, to ensure good sealing performance with the temperature and pressure in the system of alternating case.
3.With excellent corrosion resistance, not to be damaged in some extreme medium, does not have the expansion and contraction.
4.Under the condition of high temperature softening, does not creep; under the condition of low temperature hardening, does not shrink.
5.Have sufficient strength, when external load conditions, not be crushed; at high temperature, not blown out.
5.FAQ
Ask 2:What the MOQ?
Answer:The MOQ should reach 800 kilograms
Ask 3:Should i pay for it If some product need molds?
Answer:I'm afraid you should pay for it,However,We would return it back when we get the first order.
Ask 4:What's the delivery circle times ?
Answer:About 2 weeks and we would give the accurate time when we know the quantity.
Ask 5:What's the FOB port?
Anser:Our port are Shanghai and Ningbo usual.
Ask 6:Your price seems higher than others.
Answer:As you know,Price equals qualities.We have faith in our qualites.But it must be in the acceptable rang

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Q:How to enhance the performance of water resistant silicone rubber products
Steam can also reduce the performance of silicone rubber / silicone products, essentially the fracture of the backbone. The hydrolysis fracture reaction becomes apparent due to the increase of temperature and the presence of ionic reagents.
Q:What is the relationship between synthetic rubber and crude oil?
Synthetic rubber is a kind of polymer material made of petroleum and natural gas as raw material and polymerized with diene and olefin as monomers.The main purpose of the industrial synthesis of rubber material is cost saving, improving the properties of rubber products, because the natural rubber products price is more expensive, in order to reduce the cost of enterprises have invested a lot of synthetic rubber materials with low cost.
Q:What are the uses of ethylene propylene rubber?
Because of the high strength, good flexibility, high gloss and easy recycling of thermoplastic three yuan EPDM rubber, EPDM/PP has been used as the main material in automobile bumpers and automobile dashboard production both at home and abroad. It is estimated that only two items of bumper and dashboard will be used in 2010, and the annual domestic consumption of EPDM/PP can reach 45 thousand tons. The main processes adopted for the recycling of these products are: first remove the coating of the product surface - grinding - Cleaning - re granulation - adding new materials to produce new products. Thus, a large amount of raw material can be saved and better economic benefits can be obtained in the production of the bumper and the dashboard. The ethylene propylene rubber used in the automotive industry accounts for 42%-44% of the total ethylene propylene rubber in China, excluding the ethylene propylene rubber used by ships, trains and container seals. Because the bonding properties of EPDM rubber is not good, in the tire industry in a large number of materials of tire body and the tread part to promote the use of ethylene propylene rubber, only in the inner tube, white wall, tire strip and other parts of the use of a small amount of ethylene propylene rubber.
Q:What is the difference between silicone rubber and silicone rubber?
Silica gel is a kind of analysis called silica aggregate because he has a special chemical properties in various fields so we found it a synthetic rubber chemical, this also let a lot of friends on the silica gel cognition have a certain understanding, but the difference between silica gel and silicone rubber, we may know little, according to since 1916 the American chemist invented its performance and the effect of silica gel has been studied for many years continuously since the development of silicone industry is more and more widely, and the silica gel and silicone rubber used a different name for different parts!
Q:What's wrong with rubber whitening?
Rubber whitening (spray cream) the main reason for analysis, rubber spray cream, including rubber surface spray and surface spray cream. Spray (Bloom) is a phenomenon in which liquid or solid agents migrate from rubber to rubber surfaces [1]. It can be seen that the inner compound of rubber will precipitate and form a spray. There are three kinds of forms of rubber spray. Powder spraying, wax injection, injection (also known as exudation).1. powder is a curing agent, accelerator, activator, antioxidant and filler powder with precipitation agent on the rubber surface, and form a layer of powder.2. spray wax is paraffin wax, ceresin wax precipitation etc. on the rubber surface, forming a layer of wax.3. fuel injection is softening agent, tackifier, lubricants, plasticizers and other additives in liquid precipitation of the rubber surface, and form a layer of oil.In practice, frost forms on rubber surfaces sometimes appear in one form, sometimes in two or three forms.
Q:What is the role of softening plasticizers in rubber? How are they classified?
Rubber plasticizer refers to add certain substances in rubber, can make the force rubber molecules is reduced, thereby reducing the glass transition temperature of the rubber, the rubber plasticity and fluidity, easy calendering and extrusion molding operation, but also can improve the mechanical properties of the vulcanizate of some physical machines, such as the decrease of hardness and elastic constant tensile stress, with high and low heat, improve the cold tolerance.
Q:How do rubber undergo vulcanization?
Vulcanization of rubber can be divided into three categories: cold vulcanization, room temperature vulcanization and heat vulcanization according to the curing conditions.1. Cold vulcanizing products impregnated in a solution of carbon disulfide containing 2% to 5% sulfur chloride.2, room temperature vulcanization, the use of room temperature vulcanized mortar (mixed rubber solution) for vulcanization.
Q:What are the causes of chapped rubber products?
Rubber aging is a common problem of rubber products, and aging is mainly due to internal structure or component is easy to aging due to weakness, such as unsaturated double bond, branched, carbonyl, hydroxyl and so on; at the end, the main external or environmental factors are sunlight, oxygen, ozone, heat, water and mechanical stress force, high energy radiation, electricity, industrial gas, water, salt fog, fungi, bacteria, insects etc.
Q:What are the rubber parts for the car
Filter rubber parts, cloth (diaphragm), injection pump sealing ring, car frame sealing strip, door seal..... There are many, the car inside the big, small, a lot of rubber products. Watch more and you'll see.
Q:What is the specific gravity of natural rubber?
Natural rubber is composed of rubber, hydrocarbon, water, resin, protein, sugar and inorganic salts, and its specific gravity is 0.90~0.93. The natural rubber without impurities is transparent and yellowish, with good viscosity and dielectric properties, and its tensile properties are generally higher than those of synthetic rubber. Soluble in benzene, solvent naphtha, carbon disulfide, carbon tetrachloride, chloroform, turpentine, etc., but not soluble in ethanol and acetone. With halogen, oxygen, ozone, peroxide, sulfur and so on. Widely used in the manufacture of rubber products, such as tires, rubber shoes, hose, tape, wire and cable insulation materials.

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