阀门

Constant Flow Valve and the constant flow regulating valve are different: there is only one fixed flow valve valve from the valve directly feel before and after the differential pressure valve, the implementation of change in valve resistance action can be "direct action type variable resistance valve "It should not regulate the flow line, so the use of Constant Flow Valve can not be implemented to change the total flow of energy to run, and this set the flow valve as there are no imports of expensive, in the past, domestic heating systems seldom used, and only at some central air conditioning system to see.

定流量阀和恒流量调节阀不同的是：定流量阀只有一个阀瓣，由这个阀瓣直接感受阀门的前后差压，执行改变阀门阻力的动作，可成为"直动式变阻力阀"，它不能在线调节流量，因此使用定流量阀无法实施改变总流量的节能运行，而且这种定流量阀国内没有，进口的价格昂贵，以往国内的供暖系统很少采用，只有在一些中央空调系统中见到。

Constant Flow Valve and the constant flow regulating valve are different:there is only one fixed flow valve valve from the valve directly feel before and after the differential pressure valve,the implementation of change in valve resistance action can be"direct action type variable resistance valve",闸阀;It should not regulate the flow line,so the use of Constant Flow Valve can not be implemented to change the total flow of energy to run,and this set the flow valve as there are no imports of expensive,in the past,domestic heating systems seldom used,and only at some central air conditioning system to see.

订流量阀和恒流量调节阀不同的是：定流量阀只需一个阀瓣，由这个阀瓣直接感受阀门的后后佳压，执行转变阀门阻力的动做，否成为"直动式变阻力阀"，facebook外白板，它没有能在线调节流量，研建课，因己运用定淌量阀无法实施改变合流量的节能运行，而且这种定流量阀海外不，入口的价钱昂贵，以来国内的供暖体系很少采用，只需在一些中央空调系统内见到。

See Figure 2. For additional information on cylinder valves, request Air Products' Safetygram-23: Cylinder Valves.

见图2。要得到关于钢瓶阀门另外的资料，请参考Air Products的安全程序-23：钢瓶阀门。

Red Valves have been used extensively in lieu of rotary air lock feeders. They overcome several problems of rotary valves and are considerably less expensive, particularly in larger sizes.

美国红阀公司的A型夹管阀已经被广泛应用来替代回转式气塞进料器。A型夹管阀克服了旋转阀门固有的几个问题，并且更加经济便宜，通径大的阀门这一点特别明显。

5 Degree of valve opening and closing valves open and close the display plate ① degree 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 striking;② direct needle plate material in the case of better management of available stainless steel, or steel plate for the painting, do not make use of aluminum skin;③ direct drive needle eye-catching, stable fixation, accurate adjustment when opening and closing after Rivets should be locked.

4.5 阀门启闭程度的显示盘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，否则氧气专用阀、铜阀门为刷漆的钢板，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。

The standard flow channel valve can be used: the United States NIBCO T-580-70 Valve; S-580-70 Valve (2), available to full-flow channel valve indented Path: The United States NIBCO T-585-70 Valve; S-585-70 Valve 2, check valve: Path DN65 valve should be used the following Swing Y-shaped structure, and in accordance with the United States valves and pipe fittings Manufacturers Standardization Society MSS-SP80 standards of manufacture, working pressure 125 lbs class, in line with the United States Society for Testing and Materials Standard Bronze ASTMB62 valve, configuration, Teflon flap valve seat, or seat configuration flexibility of the spring-driven lift-type check valve.

可采用的标准流道阀门：美国尼伯科T-580-70球阀；S-580-70球阀（2）、可采用的不缩径全流道阀门：美国尼伯科T-585-70球阀；S-585-70球阀 2、止回阀：通径DN65以下的止回阀应该采用Y形旋启式结构，并按照美国阀门和管件制造商标准化协会MSS-SP80标准制造，工作压力125磅级，符合美国材料试验协会ASTMB62标准的青铜阀体，配置聚四氟乙烯阀座阀瓣，或配置弹性阀座的弹簧驱动升降式止回阀。

Yangtze River glacier retreat has little to do with human factors Yangtze River glacier retreat has little to do with human factors Shangguan Dong-hui said that the short term, the glacier melt water to the Yangtze River has brought plenty of water, the surface, in the Northwest seems to be a good thing, but this supply led to the uneven seasonal river runoff in winter The early release of melt water, resulting in spring flood summer drought.

Yangtze River glacier retreat has little to do with human factors ；是由上海埃非凯阀门有限公司提供的阀门新闻，中文译文仅供参考(上海埃非凯阀门有限公司还生产疏水阀隔膜阀旋塞阀柱塞阀鸭嘴阀及电动调速蝶阀，气动通风蝶阀，美标波纹管闸阀，c，平行式双闸板闸阀，欢迎您的选购。)长江源冰川的退缩与人为因素关系不大上官冬辉说，短期内，冰川的融水给长江带来了充沛的水量，表面上看，对西北地区似乎是一件好事，但是，这种补给导致江河的径流量季节性不均，冬季的融水提前释放，从而造成春汛夏旱。

The outside sealing component -corrugated tube of valve can affect outside sealing properties of valve. Through finite element analyse of stress state of corrugated tube, the stress status which are under stretch, compress and stretch-compress action are obtained. Combined with test, the stability, detonation pressure and rigidity of corrugated tube are analyzed. The result showed that corrugated tube is safety under working pressure and when stretch-compress displacement is less than 60% of maxmium displacement.

作为阀门外密封元件的波纹管是影响阀门外密封性能的关键部件，通过对波纹管进行有限元分析，初步掌握了波纹管在拉伸、压缩以及拉伸压缩共同作用下的应力状况，同时采用有限元计算和试验相结合的方法，分析了波纹管的稳定性、爆破压力、刚度等，结果表明，波纹管在工作压力下，拉伸和压缩量达到许用位移的60%时，波纹管工作仍是安全的，为阀门开启量的确定提供了理论依据。

This can lead to users applying excessive heat to the valve, possibly creating leakage at the outlet connection, the valve packing , and especially from a fusible metal relief device if the valve is so equipped.

这会导致用户过度加热阀门，可能造成排气口接头和阀门衬垫处泄露，特别是从易熔金属减压装置处泄露，如果阀门装有易熔金属减压装置的话。

TYRONE C.M Co. is well-known for its creativity and premium quality all over the world, with dominant prestige in automation machine tool and control valves field in Europe. It has advocated and greatly pushed the technology development and adoption process of machine valves control intellectualization and has kept its leading position in the European G.M. market with sales among the highest. TYRONE C.M brought its advanced control valve products to China, offering new and better choices to the Chinese customers.

英国蒂龙通用机械公司以创新精神和超群品质享誉全球，在欧洲通用机械及控制阀门领域，蒂龙通用更是独占鳌头，是机械阀门控制智能化的倡导者和技术的积极推动者，并在欧洲通用机械市场始终保持领先地位，其销售额位居世界前列。2005年，蒂龙通用将欧洲先进的控制阀门引入中国，力求为中国消费者带来更新更好的选择。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。