vacuum pipeline

The heat transfer by convection in vacuum insulation of steel jacketed heating pipeline is not neglectable.

计算真空层压力处于中、低真空下的真空保温管道的换热时不应忽略真空层中的对流换热.

Standard atmospheric pressure to high pressure pipeline vacuum 10.33 meters.

标准大气压能压管路真空高度10.33米.

It is used to put through or cut off the air passage in vacuum pipeline.

阀门用于接通或切断真空管路中的气流.

GDC-5 Electro High Vacuum Flapper Valve ■ GDC-5 electro high vacuum flapper valve is mounted in vacuum pipeline to put through or cut off the airflow in vacuum system, or used as a charging vale.

GDC-5型-电磁高真空挡板阀■GDC-5型电磁高真空挡板阀是连接在真空管路上，用来接通或截止真空系统中的气流，或作充气阀用。

Remake of vacuum oil pipeline in refinery unit and pipeline stress analysis

减压转油线改造与管系应力分析

GUD electric high vacuum ( pressure) ball valve uses electric device to drive the stem and ball for open and close, thus to put through or cut off the medium flow in vacuum ( pressure) pipeline.

GUD型-电动高真空球阀是以电动装置驱动阀杆与球芯来执行启闭动作，达到接通或切断真空系统管路中的介质流。

GD high vacuum flapper valve is used to put through or cut off the airflow in vacuum pipeline.

GD型高真空挡板阀用于接通或切断真空管路中的气流。

GI High Vacuum Butterfly Valve ■ GI high vacuum butterfly valve is used to put through or cut off the airflow in vacuum pipeline.

GI型-高真空蝶阀■GI型高真空蝶阀用于接通或切断真空管路中的气流。