Carbon Seal

• 

Mechanical carbon sealhas a long history. Graphite is an isoform of element carbon. In 1971, the United States studied the successful flexible graphite sealing material, which solved the leakage of atomic energy valve. After deep processing, the flexible graphite becomes an excellent sealing material, which are made into various carbon mechanical sealwith the effect of sealing components. These carbon shaft sealare used in chemical, petroleum, electric power industries such as high temperature fluid seal.

Because the flexible graphite is formed by the expansion of expanded graphite after high temperature, the amount of intercalating agent remaining in the flexible graphite is very small, but not completely, so the existence and composition of the intercalation agent have a great influence on the quality and performance of the product.

Selection of Carbon Seal Material

The original inventor used concentrated sulfuric acid as oxidant and intercalating agent. However, after being applied to the seal of a metal component, a small amount of sulfur remaining in the flexible graphite was found to corrode the contact metal after long term use. In view of this point, some domestic scholars have tried to improve it, such as Song Kemin who choosed acetic acid and organic acid instead of sulfuric acid. acid, slow in nitric acid, and lower the temperature to room temperature, made from a mixture of nitric acid and acetic acid. By using the mixture of nitric acid and acetic acid as the inserting agent, the sulfur free expanded graphite was prepared with potassium permanganate as oxidant, and acetic acid was slowly added to nitric acid. The temperature is reduced to room temperature, and the mixture of nitric acid and acetic acid is made. Then the natural flake graphite and potassium permanganate are added to this mixture. Under constant stirring, the temperature is 30 C. After reaction 40min, the water is washed to neutral and dried at 50~60 C, and the expanded graphite is made after high temperature expansion. This method achieves no vulcanization under the condition that the product can reach a certain volume of expansion, so as to achieve a relatively stable nature of the sealing material.

Specification of Carbon Ring Seal

Sealcon can produce different carbon ring seals according to different customers’ requirement.

+ stable - unstable 0 middle (between stable and unstable)

Hangzhou Sealcon Fluid Machinery Co., Ltdis a professional carbon seal ring manufacturer, we provide china agitator, high quality mechanical sealand etc. For more information, please feel free to contact us!

Другие товары поставщика

	ELASTOMER RUBBER BELLOW MECHANICAL SEALS	Types of Elastomer Bellow Mechanical Seals Designed by single or double, Hangzhou SEALCON supply standard and OEM elastomer bellows sealto suit di...
	PTFE TEFLON BELLOW MECHANICAL SEALS	Polytetrafluoroethylene (PTFE) is one of the best corrosion resistant materials in the world. Therefore, it is called "the king of plastic". So the...
	Double Cartridge Mechanical Seals	Cartridge mechanical seal is the rotary ring, stationary ring, spring, auxiliary seal, bushings, glands, Gasket and static seal, total 7 components...
	Flygt Mechanical Seals FBU-28	Replacement for: FBU-28 upper parts for flygt 3101pump Features: Original Sweden design Big stock Wilo pumps ITT pumps Flygt Pump Model of...
	Seal Spare Parts Sleeve	Seal Spare Sleeve Mechanical Part In most pumps, the portion of the shaft that is under the sealing arrangement is covered with a shaft sleeve. Th...

Похожие товары

	Custom Flat Lollipop Production	Продавец: Jiangsu Flying Dragon Food Machinery Co., Ltd.	Custom Flat Lollipop Production provides tailored machinery solutions for shaping, forming, and p...
	custom electrical enclosures	Продавец: 869600	custom electrical enclosures When searching for , they are looking for a manufacturer who ca...
	cnc precision machining service	Продавец: 869600	cnc precision machining service CNC Precision Machining Service Hebi Jin Hui Precision Mach...
	Microcrystalline wax used for high end candle production	Продавец: Syntop chemical Co.,Ltd.	The core industrial applications of microcrystalline wax primarily stem from its finer crystal st...
	Microcrystalline wax used for improving the flexibility of packaging materials	Продавец: Syntop chemical Co.,Ltd.	Microcrystalline wax is a specialty wax extracted from petroleum. Its primary functions include t...