选用真空阀门要考虑5大因素

来源:闸阀知识 http://www.shgkvc.cn 发布时间:2011-04-02

工开阀门是上海地区专业的阀门生产厂家,主要生产产品有闸阀高压闸阀三通球阀、截止阀等,工程师皆有数十年专业经验,今天要为大家介绍的是选用真空阀门要考虑5大因素:

1.根据材料有不锈钢、碳钢、铝合金为主体材料的阀门。

2.根据工作压力有低真空阀门、高真空阀门和超高真空阀门。

3.根据结构特点有挡板阀、插板阀、蝶阀、球阀、隔膜阀、角阀、直通阀、三通阀。

4.根据动密封的材料也可分金属密封和非金属密封阀门。轴封用O形橡胶圈一般真空动密封的漏率为10-4Pa.L/S,在轴运动过程中真空度不高,可用于要求不高的高真空条件下使用;轴封为金属波纹管密封,其漏率为10-7Pa.L/S,适用于超高真空条件下使用。

5.根据传动原理有手动、气动、电动、电磁。一般气动是电磁先导、气缸执行动作的过程,也可用手控制先导阀气缸执行动作的过程。电动为手、电两用,当停电时可用手动进行操作。

Workers in Shanghai to open the valve is a professional valve manufacturer, main products are gate valve, high pressure valve, ball valve, globe valve, engineers Jieyou decades of professional experience, introduced today is the choice for everyone vacuum valve 5 of the major factors to consider:

1. According to the material stainless steel, carbon steel, aluminum as the main material of the valve.

2. According to the work of a low pressure vacuum valves, ultra high vacuum valves and vacuum valves.

3. According to structural characteristics of a flapper valve, flapper valves, butterfly valves, ball valves, diaphragm valves, angle valves, through the valve, three-way valve.

4. According to the materials can be divided into dynamic seal metal seal and metal sealing valve. Rubber O-ring seal typically vacuum seals the drain was 10-4Pa.L / S, the axis of vacuum is not high, can be used for less demanding high vacuum conditions; metal bellows seal pipe sealing, the leakage rate of 10-7Pa.L / S, for ultra-high vacuum conditions.

5. According to a manual transmission principle, pneumatic, electric, electromagnetic. General pneumatic electromagnetic guide, the process of performing actions cylinder can also be manually controlled pilot valve cylinder process of the implementation of the action. Power for the hand, dual power, when power is available when manually operated.