EUROPEAN STANDARD. NORME EUROPÉENNE. EUROPÄISCHE NORM. EN December ICS ; ; Flanges and their joints — Bolting Part 4: Selection of bolting for equipment subject to the Pressure Equipment Direc. Norma numero: EN Titolo: Flanges and their joints – Bolting – Part 4: Selection of bolting for equipment subject to the Pressure Equipment.
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NOTE 1 The bolting selection given may be used in combination with non-standard flanges too provided that the range of application of the equipment for which the bolting is intended to be used is covered.
11515-4 nuts, the inspection certificate or the test report shall contain at least the following: BSI also holds the copyright, in the UK, of the publications of the international standardization bodies.
Wherever the starting material standard provides mechanical properties for this temperature range respective reference is made in Table 3. BSI 15515-4 members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards. Please copy and paste this embed script to where you want to embed Embed Script.
Where a purchaser has 1515- under this EU Directive, this European Standard will provide a presumption of conformity with the essential requirements of the Directive so identified in Annex ZA. Other properties like residual magnetism and relaxation properties shall be evaluated by the purchaser.
BS EN Flanges Bolting – Free Download PDF
Wherever material combinations are listed upper suitable temperature is chosen to comply with the lowest permissible of one of them.
Concerning the connection between inspection certificate type 3. The purchaser shall ensure that the coating to 5115-4 used for the bolting is appropriate for the foreseen service conditions. NOTE 1 The bolting selection given may be used 151-4 combination with non-standard flanges too provided that the range of application of the equipment for which the bolting is intended to be used is covered.
NOTE 2 Generally cold forming except rolling of external threads requires a subsequent heat treatment. For maximum suitable temperature see EN Conditions to determine the permissible minimum temperature: Bolts, screws and studs ISO Steel flanges 5115-4 Table 5 — Requirements for prevention of brittle fracture with reference thickness for nuts and bolts with starting material according to EN Type of material 1.
The lengths are stepped by increments of 5 mm for length up to 80 mm, by increments of 10 mm for length above 80 mm and up to mm, and by increments of 20 mm for length above mm. NOTE It is the purchaser’s option to require a supply in assembled condition.
The length of studs shall be measured including points. For dated references, only the edition cited applies. Bolts, screws and studs with specified property classes — Coarse thread and fine pitch thread ISO Leggere attentamente le istruzioni prima di effettuare il download. Test method  ENUnfired pressure vessels — Part 2: ENFlanges and their joints — Bolting, consists of the following parts: It is the constant aim of BSI to improve the quality of our products and services.
The use of free-cutting steel is not permitted. NOTE 2 The eb lot may be split into several manufacturing batches rn processing purposes and then reassembled into the same manufacturing lot. NOTE 2 Special services and ambient conditions may require the application of coatings.
Nuts should be obtained, preferably, by forging.
The coating process is under the responsibility of the bolting manufacturer and shall take into consideration achievement of the mechanical properties of bolting, as appropriate. A list of organizations represented on this committee can be obtained on request to its secretary. Data entrata in vigore: It covers temperature ranges of the general service of standard flanges based on PN or Class.
We would 15515-4 grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Home BS EN For bolts and studs, the inspection 151-54 or the test report eb contain at least the following: It specifies standards and additional requirements for dimensions, materials and technical conditions of delivery for bolting.
The height of point shall be a maximum one time the pitch of thread.
EN – Flanges and their joints – Bolting – Part 4: Selection of bo –
We need your help! When selecting bolting according to this European Standard it is essential to take into account other parameters such as type of fluids, corrosion hazards and relaxation at elevated temperatures. Limits of sizes for hotdip galvanized external screw threads to mate with internal screw threads tapped ne tolerance position H or G after galvanizing  ISOISO general purpose metric screw threads — Tolerances — Part 5: It is not the intention to specify all possible applications but to give guidance on the most commonly applications.
Starting material shall comply with EN According to this, e. We are a non-profit group that run this website to share documents.
Wherever the starting material standard provides mechanical properties for this temperature range respective reference is made in Table 3. This does not preclude the 1515- use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations. Nuts with specified proof load values — Coarse thread ISO