1. NBR nitrile rubber is a kind of synthetic rubber obtained by copolymerizing butadiene and acrylonitrile. It is a synthetic rubber with good oil resistance and aging resistance. The higher the acrylonitrile content, the better the oil resistance, but the corresponding decrease in the cold resistance. It can be used for a long time in air at 120°C or in oil at 150°C. In addition, it also has good water resistance, air tightness and excellent bonding properties.

 2. Advantages: good oil resistance, water resistance, solvent resistance and high pressure oil resistance, good compressibility, wear resistance and elongation force. 

3. Disadvantages: not suitable for polar solvents, such as ketones and ozone;

4. Application: At present, one of the most commonly used rubbers for oil seals and O-rings is used to make fuel tanks, lubricating oil tanks and rubbers used in petroleum hydraulic oil, gasoline, water, silicone oil, diester lubricating oil and other fluid media. parts, especially sealing parts. It can be said that it is the most widely used rubber seal. 

5. Operating temperature: about -20℃～+120℃ 

6. Keywords: seals, oil resistance, O-rings, ozone resistance, wear resistance Hello everyone, the name of the rubber product in the picture is called a hemostatic valve, which is mainly used in medical catheter sheaths. The catheter sheath kit is a device for establishing a percutaneous access path for other intravascular devices in vascular interventional diagnosis and treatment. The sheath tube is inserted into the blood vessel under the guidance of a guide wire by puncture technology. Its function is mainly to install stents to the lesion, take thrombus, angiography, balloon, guide wire, radiofrequency ablation and so on. The core point of our product hemostatic valve is the anti-reverse flow function, and this is also the function that customers are most concerned about. The incision is very important for the effect of preventing backflow. At present, our company uses automatic incision equipment to ensure the accuracy of the depth and position of the incision. Although it is an application in medical equipment; but in terms of design principle, it can also be used in the working condition that the pipe fitting is inserted into the valve body. There was a sprayer cartridge that had this connection method before.