<acronym id="ycsmu"><center id="ycsmu"></center></acronym>
<acronym id="ycsmu"><small id="ycsmu"></small></acronym>
<rt id="ycsmu"><optgroup id="ycsmu"></optgroup></rt>
<acronym id="ycsmu"></acronym>
中文  |  English
TOP
+86-021-69755076
Current position:Home >> News

Operating method of manual valve

Release time:2021/1/29

Manual valve is a valve operated by handle and handwheel. It is a common valve used in equipment pipeline.Its handle, hand wheel rotation direction clockwise is closed, counterclockwise is open.However, there are individual valves that open in the opposite way.Therefore, attention should be paid to check the open and close mark before operation.。

The handwheel and handle on the valve are designed according to normal manpower. Therefore, in the use of the valve, the operator is not allowed to open or close the valve with the help of a lever and a long wrench.Handwheel, handle diameter (length) 320mm handwheel, allow two people to operate together, or allow one person to use the appropriate lever (generally not more than 0.
5m long) to operate the valve.

Gate valves and globe valves, close or open the head (that is, the bottom dead point or the top dead point) to turn 1/4 ~ 1/2 laps, so that the thread is better close, advantageous operation, so as not to get too tight, damage the valve parts.

Some operators are used to using levers and long wrenches to operate, and think that the greater the closing force, the better, but it is not.This can cause premature valve damage and even cause an accident.

Group address:No.52, Lane 58, Lushen Road, Zhaoxiang Town, Qingpu District, Shanghai
Group phone:+86-021-59755666    Hotline:+86-021-69755076   69755027   69755026   57339828
Fax:+86-021-69755075     E-mail:sales@sgfm.cn
Factory address:No. 1798, Wang Wei East Road Fengjing Development Zone Jinshan District Shanghai City
Copyright © Shen Gao Valve Group Co., Ltd.        www.shengao-valve.com
HuICP No. 14017677    No.31011802002466    Technical support:Fengsheng technology
Group address:No.52, Lane 58, Lushen Road, Zhaoxiang Town, Qingpu District, Shanghai
Group phone:+86-021-59755666
Hotline:+86-021-69755076   69755027
           +86-021-69755026   57339828
Fax:+86-021-69755075   E-mail:sales@sgfm.cn
Factory address:No. 1798, Wang Wei East Road Fengjing Development Zone Jinshan District Shanghai City
Copyright © Shen Gao Valve Group Co., Ltd.
www.shengao-valve.com
HuICP No. 14017677
No.31011802002466
Technical support:Fengsheng technology
2020国内不卡在线播放视频,影音先锋男人源资站在线,国产在线高清精品二区,首页日韩无码第一页,亚洲欧洲日产国码不打码网站,大陆老熟女自拍自偷,日韩在线时看高清,亚洲熟女少妇乱图片区