高真空阀 美国A＆N公司 美国进口阀门

高真空阀 美国A＆N公司 美国进口阀门

A＆N提供三（3）品种的真空截止阀：球阀，提升阀，闸阀。 These valves are designed to perform fully opened or closed and therefore are not intended for flow control.这些阀??门*打开或关闭，因此，不打算用于流控制的目的是执行。 A brief description of each style of valve follows:每个款式的阀的简要说明如下：

Ball Valves are available with port sizes ranging from 3/4” to 4”. 球阀可提供端口大小不等，从3/4“?4”。 These valves offer straight- through, unimpeded flow with minimal space requirements and ¼ turn actuation.这些阀??门提供直通式，以zui小的空间需求和¼圈驱动的畅通。 Manual and pneumatic versions are available.手动，气动版本可供选择。 Because of its unique valve seat configuration, the ball is wiped clean as it is opened.由于其*的阀座配置，球被擦拭干净，因为它被打开。 As a result, these robust valves are less sensitive to particulate contamination and are especially useful in dirty vacuum applications.其结果是，这些强有力的阀是不太敏感的微粒污染，脏真空应用中是特别有用的。

Poppet Valves are available in three （3） body styles: 90° Angle, In-Line, and Angle In-Line. 提升阀，可在三（3）车身款式：90°角，线，角度线。 These valves are made of a body, actuator, and internal poppet.这些制成的阀主体，致动器，和内部的提升阀。 A pneumatic, bellows-sealed actuator transports the poppet linearly.一个气动，波纹管密封阀芯线性致动器输送。 The poppet seal is typically elastomeric therefore base pressures down to 10^-8 Torr may be achieved.提升阀密封件通常是弹性体，因此基地压力下降到10 ^ -8乇，可以实现。 An all-metal version, with copper bonnet and valve seat, is also available.全金属版，铜阀盖，阀座，也可以使用。

Gate Valves are available with nominal apertures ranging from 1.5” to 12” inches. 闸阀 ，额定孔径范围从1.5“到12”英寸。 These valves provide straight-through, unimpeded flow with the smallest valve body profile.这些阀??门为直通式，畅通，与阀体zui小的个人资料。 Gate valves are ideal for space- constrained applications that require maximum conductance.闸阀是zui大电导为空间受限的应用中的理想选择。 A central carriage or gate is transported by a pneumatic actuator within the body.一个*的滑架或栅极被输送身体内的由气动致动器。 In the open position the gate retracts compley from the tube aperture allowing unrestricted flow.在打开位置上的栅极从管孔径*缩回允许不受限制地流动。 In the closed position an elastomer seal is compressed against a sealing surface thereby providing base pressures down to 10^-8 Torr.在闭合??位置??，对被压缩的弹性体密封件的密封表面，从而提供基本的压力下降到10 ^ -8乇。