Guide Ring is a mechanical seal, also known as a guide ring. It is usually made of metal or plastic and used to support and position pistons or rods. Guide Ring has excellent wear resistance and corrosion resistance, which can effectively reduce leakage and friction, thereby extending equipment life. Guide Ring is widely used in the hydraulic, pneumatic, mechanical, and automotive industries as an important mechanical seal.
The classification of Guide Ring can be divided by material, structure, and purpose. According to material classification, Guide Rings are mainly divided into metal Guide Rings and plastic Guide Rings. Metal Guide Rings are usually made of metals such as copper, iron, and stainless steel, which have high strength, wear resistance, and high-temperature resistance; The plastic Guide Ring is usually made of polytetrafluoroethylene (PTFE), nylon, polyimide and other materials, with good corrosion resistance and low friction coefficient.
According to structural classification, Guide Rings are mainly divided into unidirectional Guide Rings and bidirectional Guide Rings. A unidirectional guide ring can only withstand pressure in one direction and is typically used in hydraulic and pneumatic systems; The bidirectional guide ring can withstand bidirectional pressure and is typically used in the mechanical and automotive industries.
According to usage classification, Guide Rings are mainly divided into piston Guide Rings and rod Guide Rings. The piston guide ring is usually used to support and position the piston, preventing friction and leakage between the piston and the cylinder liner; The rod guide ring is used to support and position the rod, preventing friction and leakage between the rod and the seal.
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How to use insulin pump properly?
How to use insulin pump properly? I believe people have great doubts about the daily use of insulin pump! Pump fell first to take the battery, and then loaded, easy insulin pump self-test, to resume normal work If inadvertently insulin pump crashed to the ground, should pay attention to check the appearance of insulin pump, cracks means that the pump will lose the role of waterproof, Need to be promptly sent to repair. Also check all the accessories are in the correct position, there is no sign of shaking loose. Check all connections for liquid leaks, wrap a piece of cloth around the junction to see if there is any evidence of wetness. The most important thing is to immediately remove the infusion device from the body, remove the battery, and then loaded, so that insulin pump will automatically self-test, until the insulin pump is working properly, and then start using again. It should be noted that the wear process should be taken to avoid the entire infusion device is clipped or wrapped clothes, so as not to affect the correct infusion of insulin. In addition, the replacement of the drug storage device should pay attention to insulin to be removed from the refrigerator 3 to 4 hours in advance, until the temperature rose to room temperature and then use. Otherwise, if insulin was removed from the refrigerator and loaded directly into the reservoir, the temperature rose a few hours later, and the gas originally dissolved in the insulin solution ran out and even ran into the catheter. To avoid accidental infusion of insulin, be sure to disconnect the infusion device from the puncture site before replacing the new reservoir. Hot weather, wear a waterproof pump tape to wear the hot weather, sweating, wet skin, insulin pump fixed catheter needle stick tape easily lame off, and then the needle will leave the skin, so wear insulin pump patients should always observe And check the adhesive tape fixed situation, the best selection of waterproof tape to prevent the needle unplug insulin without infusion of human body situation. If you suddenly find blood sugar unexpectedly increased, immediately added to add additional volume, and in 1 hour after the test blood glucose, if still not decreased and continued to rise, to immediately check whether the syringe, the needle blocked, and immediately check urinary ketone body, such as Positive urine ketone body, ketoacidosis should be self-help treatment methods. Infusion blocker obstruction is the most common failure, obstruction can lead to interruption of insulin infusion, a short period of high blood sugar, improper handling can lead to ketoacidosis. When blocking alarm, the patient should be supine, family members should be carefully checked whether the infusion device is distorted or air bubbles obstruction, if bubbles shut down, remove the insulin pump, re-air replacement after the injection site, and then wear the pump. Doctors remind: Some people sleep more "night", once the pump due to insufficient insulin alarm may not be able to hear. Before going to bed, please check the reservoir, make sure there are enough insulin to use the next morning.