公称

公称管道规格（NPS）是一种北美用于压力管道的管道规格标准。

Nominal Pipe Size ( NPS ) is a set of standard pipe sizes used for pressure piping in North America .

管道规格使用两个无纲量的编号来表示：公称管道尺寸规格（NPS）及抗拉强度（SCH）。

Pipe size is specified with two non-dimensional numbers : a Nominal Pipe Size ( NPS ) and a schedule ( SCH ) .

如何确定非标规格API钢丝绳的公称破断拉力值

On Determing the Breaking Force of Nonstandard Size API Steel Wire Rope

论文针对不同粉胶比、不同最大公称粒径集料、使用不同沥青对Am、Ap值变化影响进行了研究，得出了相关规律。

For the using different ratio of filler bitumen , different nominal maximum size of aggregate , different asphalt , the paper analyzed thoroughly the influence to AM , AP , then get some related rule .

对中压燃气管道，若公称直径不大于200mm，采用PE管；

For middle-pressure gas pipeline , the PE pipe is used if the nominal diameter does not exceed 200 mm ;

提出了摆动活齿传动中心齿轮量柱距测量法，推导出计算量柱直径dp、量柱距公称值M的方程式；

A measurement method of gauge pin distance about center gear of swing oscillating tooth drive , and the equation for calculating the gauge pin diameter dp and nominal pin distance M are derived .

在钢厂的循环发电工程中，各钢厂利用公称直径d≥200mm的大型调节阀对混合煤气进行压力控制。

Steel mills using waste gas in combined cycle power project , steel mills use the nominal diameter ≥ 200mm of large control valve to control pressure of the mixed gas .

采用20MPa的充气压力，蓄能器皮囊在最大工作压力下体积变化小于公称体积的75%，仍有较大的补压余量。

When precharge pressure is 20 MPa , bladder volume change is less than 75 % of nominal volume under maximum working pressure , while some compensation margin is still preserved .

应用传热、传热速率和能量三大平衡和优化设计原理，设计了抚钢的变压器功率7000kVA的公称10t电弧炉的管式水冷挂渣护壁。

The Pipe-type water-cooled Panel for a 10 ton , 7000 kVA electric Arc Furnace at Fushun Steel WOrks has been designed by using the balances of heat , heat transfer rate and energy 1 and the principle of optimum design .

本文介绍了确定电弧炉质心位置及倾动力矩的分部计算方法，并以一台公称容量为5t改造成实际容量为19t的电炉作实例进行计算。

The article gives the method for determining the centroid position and tilting moment of arc furnaces , then gives an example of a furnace with nominal capacity 5t which has been reformed to with actual capacity 19t .

J41N型PN40钢制截止阀：手动、法兰连接、直通式、阀座密封面材料为尼龙塑料、公称压力PN40、阀体材料为碳素钢的截止阀。

J41N Type PN40 steel globe valves : manual , flanged , straight-through , the valve seat sealing surface material as nylon plastic , nominal pressure PN40 , carbon steel valve body material cut-off valve .

结合工程实例，对公称管径≥500mm的大管径直埋热水管道的安装方式、设计理论及设计要点进行了探讨，对大管径直埋热水管道的设计、施工提出了建议。

The installation mode , design theory and design essentials of directly buried hot-water pipeline with nominal diameter of equal to or greater than 500 mm are discussed , and suggestions on the design and installation of directly buried hot-water pipeline with large diameter are offered .

采用公称尺寸设计法设计异型轧辊孔型

Application of Nominal Dimension Method to Design Groove of Shaped Roll

确定球磨机公称尺寸的新方法

New method to determine a ball mill 's nominal size

立窑单位截面积产量钢丝绳公称横截面积

Production of shaft kiln for unit cross section nominal cross-section of rope

GB/T17587.2-1998滚珠丝杠副第2部分：公称直径和公称导程公制系列

Ball screws Part 2 : Nominal diameters and nominal leads Metric series

船舶主机轴系交变扭矩与扭振测试装置GB/T3507-1983机械式联轴器公称扭矩系列

Device of shaft alternative torque and torsional vibration test of marine main engine

GB/T7996-1987搪玻璃容器公称容积与公称直径

Nominal volume and nominal diameter for glass-lined vessel

在设计中选择保护层公称厚度时，应该考虑这一标准。

It should be considered when choosing the value of nominal cover for design .

切削层公称横截面积在体型方面，对称就是美。

Nominal cross-sectional area of the cut In bodily form , symmetry is beauty .

电磁阀公称压力应超过管内最高工作压力。

Nominal pressure solenoid valve should be more than the maximum working pressure tube .

什么是公称倒角尺寸？

What is the nominal chamfer size ?

具有价格低及公称直径不受到限制的特点。

The utility model has the advantages of low price and non-limitation of nominal diameter .

晶粒的弗里特直径、平均截距、公称直径之间关系的研究

Investigation of the Relations among Frit Diameter , Average Intercept and Nominal Diameter of Crystall Grain

研究还表明，四通换阀公称容量与工作方式（制冷、供热）有关。

The experiments also show that the reversing valve capacity is related to the working mode .

O形圈压缩密封的公称槽深、公称压缩量和公称压缩率的计算

Calculation for Normal Groove Depth , Normal Compression and Normal Compression Ratio of O-ring Compression Seal

与阀门将要安装的管道的公称通径相同。

Same as the nominal size of the pipe into which the valve will be installed .

对公称容积相同但计算容积不同的油罐，其设计高度应有所区别。

The height of different actual volume tank at uniform nominal volume should be a little different .

GB/T9019-1988压力容器公称直径

Nominal diameter of pressure vessel

GB/T1048-1990管道元件公称压力

Nominal pressure for pipe components