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What kind of material seals can withstand ammonia, -40 degrees to 200 degrees?
PTFE seals can withstand ammonia, -40 degrees to 200 degrees.Advantages of polytetrafluoroethylene:1, PTFE is a fluorocarbon chemicals chemical resistance and excellent resistance to high temperature, even when exposed in the air will not deteriorate, can be used for a long time in the temperature range of -200~250.
What are the criteria for choosing the sealing ring type of hydraulic cylinders?
Basically refer to the following criteriaGB/T 10708.1-2000 reciprocating rubber sealing ring structure dimension series first parts: unidirectional sealing rubber (piston seal)GB/T 10708.2-2000 reciprocating rubber ring structure size series, second part, two-way sealing rubber ring (piston rod seal)GB/T 10708.3-2000 reciprocating rubber sealing ring structure size series third parts: rubber dust sealing ring standardOf course, engineering machinery selection of mechanical or other industry standards
Does the PTFE seal contain plasticizer? Does the silicone seal require temperature during use?
At the same time, PTFE has the characteristics of high temperature resistance, its coefficient of friction is very low, so it can be used as lubrication, but also become an ideal coating to clean the inner layer of the water pipe.Most of the PTFE material contains plasticizers.
What kind of seals are divided into?
According to the type of sealing structure, sealing mechanism, seal shape and material, the classification of seal is:Static seal1. gasket sealing (1) non-metallic gasket (2), metal metal composite gasket (3), metal gasket2. glue seal3. packing seal4. bellows
What are the main seals used in nuclear power plants?
Rubber gaskets shall consider radiation resistance to ensure that irradiation does not speed up rubber aging. For building joints, sealant will be used to fill the gap.
Silicone seals should pay attention to what storage?
4. Seals should not be placed near heat sources, motors, or ozone.5, do not use wire, rope hanging seals, so that storage will make the seal deformation, damage to the lip.The above is the silicone rubber seal storage should pay attention to several aspects, want to know more about silicon rubber tube knowledge
Is it good to use NBR or EPDM for sealing parts?
For example, EPDM is used to produce seals as follows:1, water pipe seals; 2, heat exchanger rubber seals; 3, capacitor seals, and so on;
What are the requirements of bearings for sealing?
The sealing methods of rolling bearings can be divided into two categories: contact seal and non-contact type.Contact sealing, felt ring seal, sealing ring, sealing, etc..