BS ISO 6002:2021 pdf download – Industrial valves — Bolted bonnet steel gate valves

BS ISO 6002:2021 pdf download – Industrial valves — Bolted bonnet steel gate valves This document specifies the requirements for bolted bonnet steel gate vales having the following features: — bolted bonnet; — outside screw and yoke; — inside screw (alternative for PN 10, PN 16, Class 150, PN 25 and PN 40 only); — single or double obturator; — wedge or parallel seating; — with or without non-metallic obturator or seat seals; — flanged or butt-welding ends. It covers valves of the nominal sizes DN: — 10; 15; 20; 25; 32; 40; 50; 65; 80; 100; 125; 150; 200; 250; 300; 350; 400; 450; 500; 600; 700; 800; 900; 1 000; corresponding to nominal pipe sizes NPS: — ⅜; ½; ¾; 1; 1 ¼; 1 ½; 2; 2 ½; 3; 4; 5; 6; 8; 10; 12; 14; 16; 18; 20; 24; 28; 32; 36; 40;and applies to valves of the following pressure designations: — PN 10; 16; 25; 40; 63; 100; — Class 150; 300; 600. This document applies to bolted bonnet steel gate valves used for all industrial applications. Additional requirements given in the relevant application standards can apply to bolted bonnet steel gate valves used for more specific applications (e.g. for the water industry, the chemical and petrochemical process industry, the oil and gas industry). 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 4991, Steel castings for pressure purposes ISO 5208, Industrial valves — Pressure testing of metallic valves ISO 5210, Industrial valves — Multi-turn valve actuator attachments ISO 5752, Metal valves for use in flanged pipe systems — Face-to-face and centre-to-face dimensions ISO 9327 (all parts), Steel forgings and rolled or forged bars for pressure purposes — Technical delivery conditions ISO 9328-1, Steel flat products for pressure purposes — Technical delivery conditions — Part 1: General requirements ISO 9328-2, Steel flat products for pressure purposes — Technical delivery conditions — Part 2: Non-alloy and alloy steels with specified elevated temperature properties ISO 9328-3, Steel flat products for pressure purposes — Technical delivery conditions — Part 3: Weldable fine grain steels, normalized ISO 9328-4, Steel flat products for pressure purposes — Technical delivery conditions...