原文:
1、柱塞阀操作时的启闭方向,一律应顺时针关闭。
2、由于管网中的柱塞阀,经常是人工启闭,启闭转数不宜过多,就是大口径阀门亦应在200-600转内。
3、为了便于一个人的启闭操作,在管道工压状况下,{zd0}启闭力矩宜为240N-m。
4、柱塞阀启闭操作端应为方榫,且尺寸标准化,并面向地面,以便人们从地面上可直接操作。带轮盘的阀门不适用于地下管网。
5、柱塞阀启闭程度的显示盘
①阀门启闭程度的刻度线,应铸造在变速箱盖上或转换方向后的显示盘的外壳上,一律面向地面,刻度线刷上荧光粉,以示醒目;
②指示盘针的材质在管理较好的情况下可用不锈钢板,否则为刷漆的钢板,切勿使用铝皮制作;
③指示盘针醒目,固定牢靠,一旦启闭调节准确后,应以铆钉锁定。
6、若柱塞阀埋设较深,操作机构及显示盘离地面距离≥1.5m时,应设有加长杆设施,且固定稳牢,以便人们从地面上观察及操作。也就是说,管网中的阀门启闭操作,不宜下井作业。
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译文:
1, plunger valve operation of opening and closing direction, all should be clockwise closing.
2, because the plunger valve in the pipe network, often manually opening and closing, opening and closing rotation should not be too much, that is, large-diameter valves should be transferred within the 200-600.
3, in order to facilitate the hoisting operation of a person, the plumber pressure conditions, the maximum torque should open and close to 240N-m.
4, plunger valves open and close operation should end mortise and tenon, and the size standard, and facing the ground so that people can be directly manipulated from the ground. With a wheel valve does not apply to underground pipe network.
5, plunger valves open and close the display set level of
① valves open and close levels of scale line should be cast in the gearbox cover or change the direction of the display after the disc casing, all for the ground wire brush on the phosphor scale to show eye-catching;
② direct needle plate material in the case of better management of available stainless steel, or steel plate for the painting, do not use aluminum leather production;
③ direct drive needle striking, stable fixation, accurate adjustment when opening and closing, it should be to rivet lock.
6, if the plunger valve buried deeper, the operating mechanism and the display plate distance ≥ 1.5m above the ground when the pole should have added facilities, and fixed-rate stability in order to observe the people and operations from the ground. That is, opening and closing valves in pipe network operation, should not go down operations.