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Is0 7 consists of the following parts, under the general where pressure- tight joints are made on the threads: title pipe threads part 1: dimensions, tolerances and designation part 2: verification by means of limit gauges. This part of iso 7 specifies the requirements for thread form, dimensions, tolerances and designation for jointing pipe threads, sizes 1/ 16 to 6 inclusive, for joints made pressure- tight by the mating of the threads. Therefore this version remains current. Pipe threads where pressure- tight joints are made on the threads — part 1: dimensions, tolerances and designation this standard was last reviewed and confirmed in.
For pipe threads where pressure- tight joints are not made on the threads, see is0 228. Is0 7/ 11 will deal with inspection of these threads. This part of iso 7 specifies the requirements for thread form, dimensions, tolerances and designation for jointing pipe threads, sizes 1/ 16 to 6 inclusive, for joints made pressure- tight by the mating of the threads. The 1/ 16 size is given solely for connector threads ( see is0 1179) ; it is not intended that there should be a 1/ 16 nominal size tube. Scope and field of application 2 references. These threads are taper external, parallel internal or taper internal and are intended for use with pipes suitable for.
Iso 7- 1 / entapered pipe thread is designated as: bspt germany - din 2999 rp internal cylindrical/ parallel according to din 2999 ( identical to iso 228- 1 internal g) external taper/ conical according to din 2999 britain - bs 21 rc internal taper/ conical british standard pipe taper external. The standard iso 7 - pipe threads where pressure- tight joints are made on the threads consists of iso 7- 1: 1994 dimensions, tolerances and designation iso 7- 2: verification by means of limit gauges the iso 7 tapered whitworth threads are equivalent to din 2999, bs 21 ( bs en, jis b0203.
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