Hammer union is a common part of pipe connection, but different types of hammer uonion have different numbers on the top. Do you understand the meaning of these numbers? The following is a professional manufacturer to explain the meaning of the hanmmer union number.
The hammer union number can be divided into three digits and four digits. The three-digit number, the first digit indicates the working pressure; the four-digit number, the first two digits indicate the working pressure. The two digits after the two types indicate the form of the contact surface and the contact surface seal: 00--tapered surface, metal contact seal; 02--tapered surface, rubber gasket seal; 03--male (Male Sub, with one end of the nut, the taper surface opens the "O" ring groove, and the "O" ring seals. For example, the working pressure of the number 1002 is 10,000 psi, 02 represents the buckle type; the 1502 number represents the working pressure is 15,000 psi.
Petroleum equipment high-pressure manifolds generally use the specifications of 1002, 1502, 1003 and other specifications. In addition, depending on the size, hammer union can be divided into 2 inches, 3 inches, 4 inches and other dif size. According to the connection method, it can be divided into connection welding type and thread type. In addition, there are differences between the three wings and four wings hammer unions. These different types of hammer uoions can be distinguished by numbering.
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