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Buy Metal-wrapped O-rings Products Should Pay Attention

Doit Rubber Products Co.,Ltd | Updated: Oct 24, 2017

Buy metal-wrapped O-rings products should pay attention
Metal-wound O-rings is an important sealing element, widely used in petroleum, chemical, metallurgy, power generation, shipbuilding and other industries, is the current pressure pipelines, valves, pumps, heat exchangers and other equipment, static sealing key components. Choose and use high-quality metal-wrapped O-rings, to reduce and eliminate run, run, drip, drain, to ensure that the host equipment safety, pressure pipeline normal operation, has a very important significance. It is an important sealing element. It is widely used in oil, chemical industry, metallurgy, power generation, shipbuilding and other industries. It is the key zero point of static seal of pipeline, valve, pump and heat exchanger in China. part. Choose and use high-quality metal-wrapped O-rings, to reduce and eliminate run, run, drip, drain, to ensure that the host equipment safety, pressure pipeline normal operation, has a very important significance.
Buy metal winding O-rings products should pay attention to the following points:
1, according to the working conditions to choose O-rings.
2, O-rings body surface does not allow the impact of sealing performance of the scars, voids, rugged and rust defects.
3, compression rate, rebound rate and sealing performance is an important indicator of sealing O-rings, in general, to meet the requirements of the compression rate under the premise of the higher the better the rebound rate; and meet the requirements of the resilience standard Under the premise of the compression rate of the test value is also bigger as well. Should choose a good sealing performance, moderate compression rate and rebound as much as possible products.
When installing the metal wound O-rings should pay attention to the following:
1, carefully check the flange before the installation, bolts, nuts and O-rings quality, carefully check the flange or interface installation, with or without bias, wrong mouth, mouth, wrong hole and other defects.
2, the flange or sealing parts of the surface must be clean, O-rings surface and bolts, thread does not allow adhesion of mechanical impurities.
3, O-rings can not be installed partial, should ensure uniform pressure.
4, tighten the nut when the force is uniform, the bolts should be symmetrical, evenly divided into 2 times -3
Metal-wound O-rings is the choice of alloy belt or stainless steel with material, graphite, asbestos, tetrafluoroethane as a filler material, for "V" or "W" type spiral wound made. Due to the high mechanical strength, easy to use, good compression elasticity, and more suitable for applications where the temperature is alternating.
Strictly speaking, it is also no special sealing principle, and other common such as rubber O-rings use is the same, but the use of different materials used in other occasions O-rings is not applicable
In today's market choice, the user regardless of whether the choice of metal-wrapped O-rings, or choose other types of O-rings, in the course of their choice is a certain choice is the need to pay attention to, so as to ensure that the user final The selected O-rings is in line with your own requirements. Then in the inner and outer ring metal winding O-rings selection process, the user need to pay attention to what the problem?
Can not blindly pursue low prices. In fact, in today's market, the user regardless of whether the choice of inner and outer ring metal winding O-rings, or choose other types of O-rings, in the course of its selection need to pay attention to the problem is that in its O-rings selection The process can not blindly pursue low prices, after all, too low prices in the use of the product is not guaranteed.
It should be noted that the size of the O-rings is appropriate. In the process of selecting the inner and outer ring metal-wound O-rings, the user should pay attention to the above-mentioned can not blindly pursue the low price, in the course of its choice also need to pay attention to another problem is to see O-rings The size of the size is appropriate, after all, only the size of the appropriate O-rings can be in the actual application to play the desired effect.