NF EN ISO 10434
Bolted bonnet steel gate valves for the petroleum, petrochemical and allied industries
This document specifies the requirements for a heavy-duty series of bolted bonnet steel gate valves for petroleum refinery and related applications where corrosion, erosion and other service conditions can indicate a need for full port openings, heavy wall sections and large stem diameters. This document sets forth the requirements for the following gate valve features: — bolted bonnet; — outside screw and yoke; — rising stems; — non-rising handwheels; — single or double gate; — wedge or parallel seating; — metallic seating surfaces; — flanged or butt-welding ends. It covers valves of the nominal sizes DN: — 25; 32; 40; 50; 65; 80; 100; 150; 200; 250; 300; 350; 400; 450; 500; 600; corresponding to nominal pipe sizes NPS: — 1; 1¼; 1½; 2; 2½; 3; 4; 6; 8; 10; 12; 14; 16; 18; 20; 24; applies for pressure Class designations: — 150; 300; 600; 900; 1 500; 2 500; and applies for pressure PN designations: — 16, 25, 40, 63, 100, 160, 250 and 400.
This document specifies the requirements for a heavy-duty series of bolted bonnet steel gate valves for petroleum refinery and related applications where corrosion, erosion and other service conditions can indicate a need for full port openings, heavy wall sections and large stem diameters.
This document sets forth the requirements for the following gate valve features:
— bolted bonnet;
— outside screw and yoke;
— rising stems;
— non-rising handwheels;
— single or double gate;
— wedge or parallel seating;
— metallic seating surfaces;
— flanged or butt-welding ends.
It covers valves of the nominal sizes DN:
— 25; 32; 40; 50; 65; 80; 100; 150; 200; 250; 300; 350; 400; 450; 500; 600;
corresponding to nominal pipe sizes NPS:
— 1; 1¼; 1½; 2; 2½; 3; 4; 6; 8; 10; 12; 14; 16; 18; 20; 24;
applies for pressure Class designations:
— 150; 300; 600; 900; 1 500; 2 500;
and applies for pressure PN designations:
— 16, 25, 40, 63, 100, 160, 250 and 400.
Le présent document établit les prescriptions de base pour les robinets-vannes en acier à extrémités à brides ou à souder en bout, à chapeau boulonné, pour des applications en raffinerie de pétrole ou dans les industries pétrochimiques et connexes. Comme l'indique l'introduction de la norme ISO, celle-ci concerne les robinets-vannes de construction analogue à celle spécifiée dans l'API 600, c'est-à-dire des appareils ayant un corps moulé et des épaisseurs minimales spécifiées conformes au Tableau 1.
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1 Domaine d'application
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2 Références normatives
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3 Termes et définitions
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4 Relations pression/température
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5 Conception
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6 Matériaux
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7 Essai, contrôle et vérification
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8 Marquage
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9 Préparation pour expédition
- Annexe A Informations à spécifier par l'acheteur
- Annexe B Identification du vocabulaire de la robinetterie
- Annexe C Combinaisons de matériaux d'appareil de robinetterie
- Bibliographie
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