密封件、密封装置

摘要： 本文件界定了机械密封的术语和定义，规定了机械密封产品型号编制方法。本文件适用于各类机械密封。

摘要： 本文件界定了机械密封的术语和定义，规定了型式与主要尺寸、识别标志和材料代号。
本文件适用于离心泵及类似旋转机械用机械密封。

摘要： 本文件规定了设计压力为0.25 MPa～6.4 MPa、设计温度为-196 ℃～450 ℃、公称直径为DN159～DN2 600、密封面型式为凹凸面的管壳式热交换器用垫片（以下简称垫片）的代号与型式、结构与基本尺寸、制造、检验、标记、包装与贮存等要求。本文件适用于管壳式热交换器用缠绕式、金属波齿复合、金属包覆、非金属、金属齿形组合等垫片的设计、制造。

摘要： 主要技术内容:本文件规定了防泄漏检测功能旋转接头的术语和定义、技术要求、试验方法、检验规则、仪器仪表、标志、包装、运输和贮存。本文件适用于防泄漏检测功能旋转接头的生产、检验与验收工作

摘要： 主要技术内容:本文件规定了球壳板的术语和定义、技术要求、检测方法、检验规则、标志、包装、运输和贮存。本文件适用于球壳板的生产与检验工作

摘要： 主要技术内容:本文件规定了碟型封头的术语和定义、技术要求、检测方法、检验规则、标志、包装、运输和贮存。本文件适用于碟型封头的生产与检验工作

摘要： 主要技术内容:本文件规定了拉矫机辊用旋转密封接头的术语和定义、技术要求、试验方法、检验规则、仪器仪表、标志、包装、运输和贮存。本文件适用于拉矫机辊用旋转密封接头的生产、检验与验收工作

摘要： 主要技术内容:本文件规定了球形封头的术语和定义、技术要求、检测方法、检验规则、标志、包装、运输和贮存。本文件适用于球形封头的生产与检验工作

摘要： 主要技术内容:本文件规定了椭圆封头的术语和定义、技术要求、检测方法、检验规则、标志、包装、运输和贮存。本文件适用于椭圆封头的生产与检验工作

摘要： 主要技术内容:本文件规定了立式多级泵用集装式机械密封（以下简称机械密封）的基本参数、产品型号及结构型式、基本要求、技术要求、试验方法、检验规则、标志、包装、运输和贮存和质量承诺。本文件适用于介质为清水、油类和一般腐蚀性液体的立式多级泵用集装式机械密封

摘要： 1.1This guide covers the extension of results obtained from fire tests performed in accordance with Test MethodE814to applications that have not been tested. Test MethodE814evaluates the duration for which test specimens will contain a fire, retain their integrity, or both during a predetermined fire test exposure. Firestops are intended for use in fire-resistive walls and floors that are evaluated in conformance with Test MethodsE119.Note 1:Data obtained from firestops tested in accordance with Test MethodsE119with positive pressure can also be used.1.2This guide is based on principles involving the extension of test data using simple considerations. The acceptance of these principles and their application is based substantially on an analogous worst-case proposition.1.3These principles are only applicable to temperature conditions represented by the standard time-temperature curve described in Test MethodE814, for systems falling within the scope of Test MethodE814. This test method is a fire-test-response standard.1.4The types of building constructions which are part of this guide are as follows: floors, walls, partitions, floor/ceiling and roof/ceiling assemblies.1.5This guide applies to:1.5.1a single penetrating item, or1.5.2multiple penetrating items.1.6This guide does not apply to joints systems tested to Test MethodsE119,E1966,E2307, andE2837.1.7Penetrating items can be one of the following: metallic pipe, non-metallic pipe, metallic tubing, non-metallic tubing, metallic conduit, non-metallic conduit, flexible metal conduit, cables, cable trays, bus ducts, insulated pipes, insulated tubing, insulated conduit, insulated and non-insulated ducts, and structural members.Metallic pipe, tubing or conduit6.7Insulated pipe, tubing or conduit6.8Non-metallic pipe, tubing or conduit6.9and6.10Flexible metal conduit6.11.1.4and6.11.1.5Cables6.11Cable tray6.12Bus duct6.13Non-insulated duct6.14Insulated duct6.14.2Non-structural or service support member6.15Mixed penetrations6.161.8Assemblies can be one of the following; concrete floors or walls, masonry walls, gypsum walls, wood floor/ceiling assemblies, concrete floor/ceiling assemblies, chase wall in floor/ceiling assemblies and fire-rated insulated walls.Concrete floors or walls6.1Masonry walls6.1Gypsum board wall assemblies6.2Wood floor/ceiling assemblies6.3Floor/ceiling assembly with concrete floor6.4Chase wall intersecting a floor/ceiling assembly6.5Fire-resistance insulated walls6.61.9The extension of data using numerical calculations based on empirical data or theoretical models is not covered in this guide.1.10This guide does not cover the substitution of one proprietary material for another proprietary material, or materials for which fire-test data are not presently available.1.11This guide is used to predict or provide a quantitative measure of the fire hazard from a specified set of fire conditions involving specific materials, products, or assemblies. This assessment does not necessarily predict the hazard of actual fires which involve conditions other than those assumed in the analysis.1.12This guide is used to measure and describe the response of materials, products, or assemblies to heat and flame under controlled conditions, but does not by itself incorporate all factors required for fire hazard or fire risk assessment of the materials, products or assemblies under actual fire conditions.1.13Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.1.14This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.15This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ======4.1The methods and procedures set forth in this guide relate to the extension of the fire test results to firestop systems that have not been tested.4.2Users of this guide must have knowledge and understanding of the provisions of Test MethodsE119and Test MethodE814including those pertaining to conditions of acceptance.4.3In order to apply some of the principles described in this guide, reference to the original fire test report will be necessary.4.4In Test MethodE814, the specimens are subjected to specific laboratory fire test exposure conditions. Differences between the tested assembly and the as-built assembly impact the fire-test-response characteristics. Substitution of different test conditions also impacts the fire-test-response characteristics.4.5The extension of data is valid only for the fire test exposure described in Test MethodE814.4.6This guide shall not be used to extrapolate the fire resistance rating to a higher value.4.7Limitations:4.7.1The extension of fire resistance data is to be used only for changes to the tested specimen that fall within normal and reasonable limits of accepted construction practices.4.7.2Conclusions derived from using this guide are valid only if the identified change is the only change in the construction or properties of the components.4.7.3Evaluation of changes to the fire-resistive assembly in which the firestop is installed is governed by the Extension of Data principles in PracticeE2032.4.8The statements in this guide are based on a single change to a system.Note 2:It is possible that multiple changes have a different cumulative effect than that of individual changes evaluated separately. The principles contained herein may provide useful information for the application of sound engineering principles to evaluate the effect of multiple differences between tested and installed firestops.4.9Extensions of data using this document shall be done by individuals possessing the following minimum qualifications and attributes:4.9.1an understanding of the Test MethodE814test procedure,4.9.2an understanding of the fire behavior of firestop materials,4.9.3knowledge of the elements of the construction to be protected, and4.9.4an understanding of the probable behavior of the underlying construction and the recommended firestop system protecting it, were they to be subjected to testing in accordance with Test MethodE814.4.10The person performing evaluations based on tested or listed firestops shall be one of the following:4.10.1the firestop manufacturer's knowledgeable and qualified technical personnel,4.10.2a registered professional engineer, or Fire Protection Engineer, knowledgeable in firestopping systems,4.10.3an independent testing agency or a listing agency, or4.10.4technical personnel with experience in firestopping.

摘要： 1.1This practice permits measurement of gasket compression resulting from bolt loading on a flat-face joint assembly at ambient conditions.1.2The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.1.3This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.4This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ======4.1Gasket compressions produced by bolt loads in a flanged joint are important in the application engineering of a joint assembly. They are related to the ability of a gasket to seal, to maintain tightness on assembly bolts, and to a variety of other gasket properties that determine the service behavior of a joint assembly. Thus, being able to determine the degree of compression in a gasket under the bolt loading will permit one to make qualitative predictions of the behavior of a joint assembly when it comes in contact with the application or service environment. With the plug test, bending of a flange facing between bolt centers can be measured; however, in a few highly distortable flanges the maximum bending between bolt centers may not be detected.4.2The variation in gasket compressions at selected points in a flat-face joint assembly reveals the degree of flange distortion or the ability of the flange to distribute satisfactorily the compressive forces from bolt loads throughout the gasket.