摘要针对闸阀阀杆填料密封泄漏的问题，提出了正确选择密封填料的材料和改进闸阀填料压盖密封件结构的技术改进措施。
In allusion to the leaking of packing of gate valve, this paper presents technical improvement measures in properly selecting packing material and varying the structure of packing assembly.
蝶阀的流体特性相当于截止阀的三倍甚至更高，相当于同样尺寸的闸阀的75%。
Butterfly valves have flow characteristics three times better than globe valves and approximately 75% of an equivalent size gate valve.
我们现在能够提供标准铸钢螺栓阀帽闸阀和截止阀，这些阀门都通过符合EPA短时排放规定要求的鉴定测试。
Velan now offers standard cast steel bolted bonnet gate and globe valves qualification tested for compliance with EPA fugitive emissions regulations.
介绍了涂装线设计中常用的各种类型的阀门(包括球阀、蝶阀、截止阀、闸阀)及其特点。
Different types of valves (including ball valve, butterfly valve, cut-off valve and brake valve) commonly used in designing painting line and their features were introduced.
闸阀通常安装在水平管道上，阀杆垂直朝上。
Valve is usually installed in horizontal pipe, the stem vertically upward.
分析了平衡阀的特点，认为为改善液体管路系统的调节功能，用平衡阀取代截流孔板、闸阀及截止阀势在必行。
Discusses the feature of balance valves, considers that balance valves should be used in place of the orifice, gate valves and stop valves in order to improve regulating function of liquid pipe.
介绍了平板闸阀的性能，分析了其阀杆密封的特点，提出了改进填料结构的方法。
Introducing the properties of slab gate valve, analyzing the characteristics of the stem sealing, proposing the methods of improving packing structure.
闸阀，截止阀，角阀和止回阀型号编制体系。
平行阀座闸阀由两个可互换弹簧负载阀瓣，一个全导向阀瓣托架和扣环销钉构成。
The parallel seat gate assembly consists of two interchangeable spring loaded discs, a fully guided disc carrier, and retaining pins.
闸阀通常安装在水平管道上，阀杆垂直向上。
Gate valve are normally installed in horizontal pipe runs with the stem vertical.
对于高度超过头部，操作困难的闸阀、截止阀和角阀，可以采用巴氏可调节锤击链轮。
The babbitt adjustable Hammer-Blow Sprocket Rim is for use with hard to operate gate, globe and Angle valves in overhead locations.
这种总成应该是完整的，包括紧密关闭弹性阀座关闭阀(闸阀)，测试旋塞，以及建议配置的一个过滤器。
It shall be a complete assembly including tight-closing resilient seated shutoff valves, test cocks, and a strainer is recommended.
对于高度超过头部，操作困难的闸阀、截止阀和角阀，可以采用巴氏可调节锤击链轮。
Rim is for use with hard to operate gate, globe and Angle valves in overhead locations.
美国尼伯科特有的关闭阀设计极大地延长了传统闸阀的使用寿命。
NIBCO's exclusive Block valve design greatly extends the life you ordinarily expect from a gate valve.
我们的产品线包括：闸阀，止回阀，截止阀，止回阀，双板的止回阀，高性能蝶阀。
Our product line includes: Gate valves, Check valves, Globe valves, Non-Return valves, Dual-Plate Check valves, and High Performance Butterfly valves.
闸阀和截止阀(金属与金属连接)的阀座不具备不透气关闭的性能。
Gate and globe (metal to metal) seats cannot provide bubble tight shut-off. Resilient seated butterfly valves are bubble tight by design.
闸阀可作为流体双向有效的关闭阀。
Gate valves serve as efficient stop valves with flow in either direction.
闸阀和截止阀具有各种楔形闸板或阀瓣和阀体的配置，适用于不同的应用场合。
Gate and globe valves are available with a selection of wedge or disc and body configurations for different services.
图中显示一闸阀及一旋转的蝶阀用作上游节流阀。
A gate valve and a rotary butterfly valve are shown acting as the upstream throttling valve.
许多实际应用要求闸阀、截止阀和截止止回阀采用齿轮装置来降低手轮的边缘拉力，使得靠一个人的力量就可以启闭阀门。
Many applications require gate, globe and stop-check valves to use gearing to reduce the hand wheel rimpull and thus allow one man to manually seat or unseat the valve.
主要产品包括：柱塞阀、高温球阀、止回阀、截止阀、排污阀、闸阀、波纹管截止阀及民用阀门。
We have many series production such as plunger valve, integral heat ball valve, check valve, close valve, duct valve.
一个阀门能够关闭和打开多少次？美国尼伯科关闭阀和普通闸阀已经通过了耐疲劳试验。
How often can a valve be opened and closed? NIBCO Block valves and ordinary gate valves were subjected to endurance tests.
它将可取代闸阀、截止阀及球形阀。
It will be replaced valve, the cut-off valve and ball valve.
公司专业生产“皇家”牌铜球阀、闸阀、截止阀、止回阀、过滤器、煤气阀门和管道配件等系列产品。
Company specializing in the production "Huangjia" brand brass ball valve, gate valve, globe valve, check valve, filters, gas valves and pipe fittings and other products.
通用阀门主要有：青铜闸阀、青铜球阀、青铜截止阀、铸铁阀门等。
The universal valve includes bronze gate valve, bronze ball valve, bronze globe valve and cast iron valve etc.
目前，开发生产的主要产品有蝶阀、球阀、止回阀、闸阀、截止阀、浆料阀、隔膜阀等。
At present, the development and production of the main products are butterfly valve, check valve, gate valve, ball valve, strainer valve, globe valve, slurry valve, diaphragm valves and so on.
目前，开发生产的主要产品有蝶阀、球阀、止回阀、闸阀、截止阀、浆料阀、隔膜阀等。
At present, the development and production of the main products are butterfly valve, check valve, gate valve, ball valve, strainer valve, globe valve, slurry valve, diaphragm valves and so on.
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