Welcome to www.aakindustry.com
News information

AAK hydraulic valve choose the right seal ring, no matter what medium is encountered, there is no leakage

Views : 211
Update time : 2021-03-26 14:00:19
After the last two articles about sealing rings and media have been posted, we have received a lot of e-mails from customers in recent days. It is very gratifying to find that many people have gained something. Today, we will continue to talk about the last aspect of "Application of common seals and classification of media resistance". The specific introduction is as follows:
 
1, NBR: oil resistance, heat resistance, corrosion resistance, good wear resistance, anti-aging. It is widely used in making sealing products, but not suitable for phosphate series hydraulic and gear oil containing polar additives. It can be used to make "O" ring and oil seal. It is suitable for general hydraulic and pneumatic systems. NBR is widely used in hydraulic valve system in China, and it is also the first choice of raw materials for hydraulic valve sealing ring.
 
2. Rubber and plastic: high modulus of elasticity, high strength, other properties as above. It is used to make O-ring, Y-ring and dust-proof ring. It is used in the sealing of construction machinery and high-pressure hydraulic system.
 
3. Fluororubber: heat resistant, acid and alkali resistant and other chemicals, oil resistant (including phosphate series hydraulic oil), suitable for all lubricating oil, gasoline, hydraulic oil, synthetic oil. At the same time, it is suitable for the sealing of high temperature resistant, chemical and fire-resistant hydraulic oil, and is widely used in metallurgy, electric power and other industries. Because of aging resistance and better elasticity than nitrile rubber, fluorinated rubber is preferred for hydraulic valves with high quality requirements.
 
4. Silicone rubber: good heat and cold resistance. The compression set is small, but the mechanical strength is low. It is suitable for high speed rotary seal at high and low temperature and food machinery seal. However, silicone rubber is not resistant to oil and has very poor aging resistance. Generally, it is not suitable for the hydraulic valve system. Because of the low price of silicone rubber, some hydraulic valve manufacturers ignore the quality and choose silicone rubber as the sealing ring.
 
5. Polytetrafluoroethylene: good chemical stability, heat resistance, cold resistance, resistance to oil, water, steam, drugs and other media. High mechanical strength, high temperature resistance, wear resistance, low friction coefficient, good self lubrication. It is used to make wear-resistant ring, guide ring and retaining ring, and is a common sealing material in machinery, widely used in metallurgy, petrochemical, engineering machinery and light industry machinery.
 
AAK Hydraulic Valve, save time, worry, labor and money for you!

 
Related News
Read More >>
Original factory can’t solve failure of the pressure spring of hydraulic relief valves under high temperature. AAK can withstand 500℃ Original factory can’t solve failure of the pressure spring of hydraulic relief valves under high temperature. AAK can withstand 500℃
Aug .11.2022
Maverick is from a Canadian hydraulic equipment manufacturing company. In the first half of last year, the high-temperature hydraulic power unit dedicated to meltblown equipment sold by their company for less than 4 months was complained by customers.
The potential safety hazard of the hydraulic column can not be found, AAK newly designed hydraulic pressure reducing valves solved it with O-ring The potential safety hazard of the hydraulic column can not be found, AAK newly designed hydraulic pressure reducing valves solved it with O-ring
Aug .10.2022
At the beginning of this year, Liam from the Netherlands found AAK Hydraulic Valves on Google. He told me that he encountered the dilemma of purchasing hydraulic pressure reducing valves. Their company has developed a hydraulic support column used in coal mining.
Many hydraulic valve manufacturers can't make hydraulic relief valves with a fixed length diameter ratio of 11:1, AAK solved it with 3 points Many hydraulic valve manufacturers can't make hydraulic relief valves with a fixed length diameter ratio of 11:1, AAK solved it with 3 points
Aug .09.2022
The processing difficulty of hydraulic relief valves with deep hole is a pain point in the industry. The greater the length diameter ratio, the greater the difficulty. Pablo, an American Hydraulic customer, has recently been besieged by an order for hydraulic relief valves with a length diameter ratio of 11:1.
The sensitivity of AAK hydraulic pressure control valve is over 30% higher than that of the original manufacturer, the unsalable equipment sells hot The sensitivity of AAK hydraulic pressure control valve is over 30% higher than that of the original manufacturer, the unsalable equipment sells hot
Aug .08.2022
2 months ago, Jackson from the United States left a message on AAK website: I read the article "The throttling groove is changed from double to single triangle. The hydraulic counterbalance valve has no vibration. AAK makes Henry feel at ease for vacation".