gate valve

A backup stem seal for a gate valve retains pressure in the body when the valve is in the closed position.

一种用于闸阀的备用阀杆密封件，其在所述阀处于闭合位置时保持阀体内的压力。

Butterfly valves have flow characteristics three times better than globe valves and approximately 75% of an equivalent size gate valve.

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%。

the electric-hydraulic pusher devices of the upper and the lower gate valve are connected with a controller by cables.

所述的电液推杆装置上设有压力继电器，此压力继电器通过电缆与控制器相联接。

The utility model relates to a gate valve, in particular to a three-way gate valve for cutting over the current direction.

本实用新型涉及一种闸阀，尤其是一种用于流向切换的三通闸阀。

A gate valve and a rotary butterfly valve are shown acting as the upstream throttling valve.

图中显示一闸阀及一旋转的蝶阀用作上游节流阀。

Bleed valves can be supplied upon request. Pacific Valves standard bleed valve is a gate valve, but other configurations can be furnished.

排出阀可以按要求提供。美国太平洋阀门标准配置的排出阀是闸阀，但是也可以配置其它结构的阀门。

It may be loosely thought of as the sliding gate on a gate valve.

因此也可以粗略地认为全封闭防喷器闸板是闸阀上的一个闸门。

Adjust outlet gate valve to make it run within the set range of performance.

调节出水闸阀，使之在规定的性能范围内运转。

The utility model relates to a spherical valve, particularly to an anti-blocking knife gate valve.

本实用新型涉及一种球阀，特别涉及一种防堵刀闸阀。

Thus, the latent seal degree can be achieved by metallic sealing wedge gate valve is higher than flat-plate gate valve.

这样，金属密封的楔式闸阀所能达到的潜在密封程度就比普通的金属硬密封的平板闸阀高。

Gefa processtechnik GmbH provides different types of valve for you need. It including butterfly valve , ball valve , gate valve &. . .

公司产品提供为业用多种多样的阀门，包括自动化之蝶阀、球阀、闸阀等等。

Our major products are: stainless ball valve, gate valve, globe valve, check value, butterfly valve strainer, pipe fittings, and water pump.

工厂主导产品有：不锈钢球阀﹑闸阀﹑截止阀﹑止回阀﹑蝶阀、过滤器、管接件、水泵等。

The invention relates to a knife-shaped gate valve, in particular to a rising stem knife-shaped gate valve.

本发明涉及一种刀型闸阀，尤其涉及一种明杆刀型闸阀。

FGV gate valve can be divided into the passage, full-bore type and non-reducing type two kinds.

FGV闸阀阀体的流道可分为，全通径式和缩径式两种。

A comparatively simple form of gate valve is illustrated in the figure.

简单形式的闸阀如图所示。

Introducea gate valve which adopt isostatic compaction polyfluortetraethylene lining .

介绍了一种采用聚四氟乙烯等压成型衬里闸阀。

a gate valve and a throttle valve are arranged on each integral branch wing.

每个整体式支翼上装有闸阀和节流阀。

The gate valve with the test cock is to mounted on the inlet side of the backflow preventer .

带有测试旋塞的闸阀安装在防回流阀的进口一侧。

But, sometimes the inlet seal load generated by stiff metallic sealing wedge gate valve is insufficient to achieve the inlet seal.

但是，金属硬密封的楔式闸阀由楔入作用所产生的进口端密封载荷往往不足以达到进口端密封。

Finally, the design process reengineering of the large-scale gate valve was provided as an example.

最后，用该方法对某类大型阀门进行了设计过程重组。