The axial section of the stainless steel clamp is concave, and the upper and lower surfaces on the inner side are inclined planes. The inclined view point between the stainless steel clamp and the horizontal plane should be less than the friction angle, generally 5 ° to 7 °. In the groove, in order to ease the stress convergence, the larger the corner radius is, the better.

The head and cylinder flange connected by stainless steel clamp have shoulders, and the inclined view point of the inclined plane on the shoulder is the same as that of the clamp. When tightening, several clamp pieces are firmly connected together, relying on the function of the matching slope, so that the head and the cylinder flange close together, so as to achieve sealing.

Stainless steel clamp is generally divided into two types, one is connected by bolts. According to the number of clamp pieces, the clamp can be divided into two-and-a-half, three or more pieces. They are fastened by connecting bolts. The other is the quick release clamp, which is fastened by two bolts by means of the transmission device composed of two pairs of bevel gears.