Name of Legally Binding Document: JIS B Taper pipe threads. Name of Standards Organization: Japan Standards Association (JSA). UDC JIS. Japanese Industrial Standard. Designation of thread . r = P. P = n. JIS B ISO (BS21). C JIS B – Download as PDF File .pdf), Text File .txt) or read online. JIS B .
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Log In Sign Up. T If the thread is tapered: If not, try another gauge. It is intended to be used as b02033 guide to help identify various threads.
Thread and End Connection | CYRIL LE CORSU –
Calibration of calipers is the responsibility of the end user. Determine the thread standard. Thread and End Connection.
The main reason for this variation is industry or manufacturing tolerances.
Measured thread diameters may not match table measurements exactly. The h0203 tight seal is the reason most process instrumentation use tapered thread connections. The male end has a straight thread and an angled shoulder. Tapered threads tighten to create a higher pressure fluid type seal.
The counterbore is larger to help ensure the male end compresses the gasket into a b0023 position. Use a caliper to measure the nominal male or female thread diameter from crest-to-crest. Thread and End Connection Identification Steps You have a male fitting and you need to identify its thread. To identify the end connection, you: The seal takes place by compressing the O-ring into the taper. Thread standards are usually referenced in the end connection standard.
At this point you know that the thread has the following characteristics: See pages 26 through For each case, read across the table to the pitch column to determine the b0023 thread pitches for your thread. Thread Flank Angle 2. Therefore, thread standards can be used to help define end connection standards.
See cut-out of table below. ISOis the international standard for parallel threads.
Pipe Gauge for Precision Inspection of Tapered Male Pipe Thread (JIS B0203)
Contact your independent Swagelok representative for additional information. The seal takes place between the taper in the male fitting and mis globe seal nose. Straight Thread Connection Tapered threads tighten to create a higher pressure fluid type seal. See Unified Screw Threads.
JIS B 0203: Taper pipe threads
Function, material compatibility, adequate ratings, proper installation, operation, and maintenance are the responsibilities of the system designer and user. S Measure any full thread. Nominal thread diameter of 0. Selected special combinations of diameters, pitches, and lengths of engagement. On the appropriate thread identification reference table, locate the nominal thread diameter.
Nis gland with a flat face is held against the body by a female nut that threads onto the body. You find the thread diameter to be 0. The female end has a straight thread.