Definition Of Sealing Packing

Packing seal is also known as Gland Packings seal, commonly known as packing (Packings) seal. Packing seal is the oldest kind of sealing structure, in China's ancient water lifting machinery, it is the method of stuffing cotton yarn to block the leak, the world's earliest steam engine is also using this sealing form. The production and development of oil and gas extraction technology in the 19th century has made new developments in packing and sealing materials. By the 20th century, packing seals were favored by many industrial sectors because of their simple structure, inexpensive price and wide range of sources.