Thread form conversion specifications are: ZG1/4-M10*1, ZG1/8-M10*1, G1/2-M20*1.5, 1/2NPT-ZG1/2, 1/2NPT-M20*1.5, 3/8NPT-M14*1.5, M16*1.5-3/8NPT, M20*1.5-3/4NPT, 1NPT-3/4NPT, M14*1.5-R1/4, 1/4NPT-M14*1.5, G3/8- M22*1.5, and so on different thread specifications conversion
Manufacturing process: the use of hexagonal steel, CNC machine tools processing threads, with high pressure resistance, corrosion resistance, durability and other advantages, exquisite appearance, smooth thread characteristics.
Uses: In the power industry, mechanical and electrical engineering, chemical engineering, pressure gauge pipelines, instrument pipelines, pneumatic pipelines, hydraulic pipelines, shipbuilding, auto parts industry, gold treatment, aerospace, and other occasions a large number of applications.
1, M thread, also known as metric thread, the representation method is generally the diameter of the thread and the tooth spacing, such as M14 * 1.5, 14 means that the thread diameter is 14MM, the tooth spacing is 1.5MM of the metric thread, the pressure gauge joint national standard is the metric thread, such as M14 * 1.5, M10 * 1, M16 * 1.5, M18 * 1.5, M20 * 1.5, M22 * 1.5, M24 * 1.5
2, G, ZG thread, also known as the national standard inch thread, 55 degree tooth type, where G is a straight thread, ZG is a tapered thread, G thread can also be sealed with a sealing O-ring. The ZG thread itself is a sealing thread and does not require a sealing ring. In the pressure gauge adapter, there are generally ZG1/4, ZG3/8, ZG1/2, ZG3/4, G1/4, G1/2, G3/8, G3/4
G1, etc. 1 part is 1/8, 2 parts is 1/4, 3 is 3/8, 4 is 1/2, 6 is 3/4, and 1 inch is 8.
3, NPT thread, also known as the United States cone sealing thread, tooth type 60 degrees, isosceles triangle type, with taper, no need for sealing rings, directly sealed threads, commonly used in the United States connection pipe, in the pressure instrument conversion joint is commonly used specifications are, 1/8NPT, 1/4NPT, 3/8NTP, 1/2NPT, 3/4NPT, 1NTP, etc.
4, R, RC thread, GB old-fashioned thread, R is the external thread, RC is the inner thread, with taper, equivalent to ZG, G thread. Commonly used specifications in pressure gauge conversion joints are, R1/4, R1/8, R3/8, R1/2, R3/4 and so on.
5, BSPP, BSPT thread, is an inch thread, 55 degree tooth angle, equivalent to G, ZG thread, can be used.
The inch thread units are:
1/2 (4 minutes/DN15) thread diameter approx. 20mm
3/4 (6 min/DN20) thread diameter approx. 25mm
1' (1 inch/DN25) Thread diameter approx. 32mm
Female thread M20*1.5 male ZG1/2(4 min)
Female thread M20*1.5 male thread ZG1/4(2 points)
Female thread M20*1.5 Male thread M14*1.5MM
Female thread G1/2 (4 min) male thread M20*1.5
Female thread M14*1.5MM male thread ZG1/4(2 minutes)