共找到 2671 条与 阀门 相关的标准,共 179 页
Technical Specifications for Pressure Regulator Proportional Spray Valves for Nuclear Power Plants
This Standard covers face-to-face and end-to-end dimensions of straightway valves, and center-to-face and center-to-end dimensions of angle valves. Its purpose is to ensure installation interchangeability for valves ofa givenmaterial, type, size, rating class, and end connection. Face-to- face and center-to-face dimensions apply to flanged end valves with facings defined in para. 2.3.1 and to other valves intended for assembly between flat face or raised face flanges. Endto-end dimensions apply to grooved end, buttwelding end, and flanged end valves with facings defined in para. 2.3.3. Center-to-end dimensions apply to buttwelding end and to flanged end valves with facings defined in para. 2.3.3. 本标准涵盖直通阀的面对面和端到端尺寸,以及角阀的中心到面和中心到端尺寸。其目的是确保给定材料、类型、尺寸、额定等级和端接的阀门的安装互换性。面对面和中心对面尺寸适用于具有第2.3.1款中定义的面层的法兰端阀,以及用于在平面或凸面法兰之间组装的其他阀门。端对端尺寸适用于带槽端、对焊端和法兰端阀,其面层见第 2.3.3 段。中心到端尺寸适用于对接焊接端和法兰端阀,其面层见第2.3.3段。
Face-to-Face and End-to-End Dimensions of Valves
Gas cylinders. Specifications and testing of LPG cylinder valves. Self-closing
This document specifies the basic series of face-to-face (FTF) and centre-to-face (CTF) dimensions for two-way metal valves of the gate, globe, diaphragm, ball, plug, butterfly design types used as isolating and check valves in flanged pipe systems. Each basic series of face-to-face and centre-to-face dimensions can be used as required with flanges of mating dimensions conforming to the equivalent EN or ASME flange series. This document covers valves with the following PN, Class, DN and NPS values: — PN 2,5; PN 6; PN 10; PN 16; PN 25; PN 40; PN 63; PN 100; PN 160; PN 250; PN 320; PN 400; — Class 125; Class 150; Class 250; Class 300; Class 600; Class 900; Class 1500; Class 2500; — DN 10; DN 15; DN 20; DN 25; DN 32; DN 40; DN 50; DN 65; DN 80; DN 100; DN 125; DN 150; DN 200; DN 250; DN 300; DN 350; DN 400; DN 450; DN 500; DN 600; DN 650; DN 700; DN 750; DN 800; DN 900; DN 1000; DN 1050; DN 1200; DN 1400; DN 1600; DN 1800; DN 2000; — corresponding to nominal 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; 26; 28; 30; 32; 36; 40; 42; 48; 56; 64; 72; 80. NOTE See Annex B for the relationship between DN and NPS.
Metal valves for use in flanged pipe systems - Face-to-face and centre-to-face dimensions
Building valves - Expansion groups - Tests and requirements
This document specifies the general requirements for design, materials (e.g. steel, cast iron, ductile iron, copper alloy), pressure/temperature ratings and testing for butterfly valves having metallic bodies for use in flanged or butt-welding piping systems. This document applies to metallic butterfly valves used for all industrial applications. Additional requirements given in the relevant application standards can apply to butterfly valves used for more specific applications (e.g. for the water industry, the chemical and petrochemical process industry, the oil and gas industry). This document covers butterfly valves of the following nominal sizes, DN and NPS: — DN 40; 50; 65; 80; 100; 125; 150; 200; 250; 300; 350; 400; 450; 500; (550); 600; (650); 700; 750; 800; 900; 1000; 1050; 1200; 1400; 1500; 1600; 1800; 2000; 2200; 2400. — NPS 1 ½; 2; 2 ½; 3; 4; 5; 6; 8; 10; 12; 14; 16; 18; 20; (22); 24; (26); 28; 30; 32; 36; 40; 42; 48; 54; 56; 60; 64; 66; 72; 78; 80; 84; 88; 90; 96. This document is applicable to butterfly valves of the following pressure designations, PN and Class: — PN 2,5; PN 6; PN 10; PN 16; PN 25; PN 40; PN 63; PN 100; — Class 25, 125; 150; 250; 300; 600. NOTE 1 It is possible that the nominal sizes listed are not available for all pressure designations. NOTE 2 Nominal sizes listed in parenthesis are not common industry sizes, but are used in some application standards.
Industrial valves - Metallic butterfly valves
Operator and Mounting Kits for Subsea Pipeline Valves (FIRST EDITION; ERTA 1: May 2021)
This document specifies the requirements for the in-series combination of safety devices covered by EN ISO 4126-1, 4 and 5 and the bursting disc safety devices covered by EN ISO 4126-2 when the bursting disc safety device is fitted within no more than five pipe diameters from the
Safety devices for protection against excessive pressure - Part 3: Safety valves and bursting disc safety devices in combination (ISO 4126-3:2020); German version EN ISO 4126-3:2020
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; 1000; 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).
Industrial valves - Bolted bonnet steel gate valves
1.1?The following procedures and practices are intended to provide guidelines for processing and quality control that will provide acceptable results for the intended end use, keeping in mind the varying quality of the castings available. 1.2?The recommendations are based on wh
Standard Practices for Casting Preparation and Test Procedure of Porcelain Enamel-lined Pipe, Fittings, and Valves for Use in the Municipal Wastewater, Sewage, and Water Treatment Industry
1.1?This specification2 covers the application, design, and materials for valve locking devices. 1.2?Locking devices Types I and II described in this specification are designed to secure the valve in a fully opened or completely closed position. 1.3?This specification does not
Standard Specification for Valve Locking Devices
LPG equipment and accessories. Pressure relief valves for transportable refillable cylinders for Liquefied Petroleum Gas (LPG)
This document applies to valves of DN 15 and larger, made of metallic materials for chemical and petrochemical plants. It contains additional requirements to those contained in the relevant European product standards (e. g. EN 593, EN 1349) and EN 16668. The use of design codes o
Industrial valves - Valves for chemical and petrochemical process industry - Requirements and tests; German version EN 12569:2020
This International Standard in conjunction with ISO 10297:2014 and ISO 14246:2014 specifies design, type testing, marking and manufacturing tests, and examinations requirements for quick-release cylinder valves intended to be fitted to refillable transportable gas cylinders which
Gas cylinders - Quick-release cylinder valves - Specification and type testing (ISO 17871:2020); German version EN ISO 17871:2020
Sanitary Waste Valves for Plumbing Drainage Systems
Technical conditions for marine valve electric devices
High temperature and high pressure flat gate valve for power stations
Automatic control return valve
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