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<title>Q&amp;A-ANHUI TIANMA PUMP VALVE GROUP CO.,LTD OF CHINA</title>
<link><![CDATA[http://www.ahtmbv.cn/en/index.php?case=archive&act=list&catid=19]]></link>
<description>11Q&amp;A-ANHUI TIANMA PUMP VALVE GROUP CO.,LTD OF CHINA</description>
<item id="1">
<title><![CDATA[Tianma valve -- Analysis of factors affecting the performanc]]></title>
<link><![CDATA[http://www.ahtmbv.cn/en/index.php?case=archive&act=show&aid=332]]></link>
<description><![CDATA[A lot of factors affecting the performance of centrifugal pump and performance conversion factors affecting the performance of centrifugal pump, including liquid properties (density and viscosity etc.), structure and size of the pump (such as D2 and beta 2), the speed of the pump n. When any of these parameters change, will change the performance of the pump, the pump manufacturers need to provide the performance parameters or characteristics of the curve.
1 liquid physical properties (properties of matter affect liquid)
(1) the effect of density (density)
The centrifugal pump f…]]></description>
<pubDate>2016-08-02 09:48:18</pubDate>
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<item id="2">
<title><![CDATA[Tianma valve - submersible pump to use common sense.]]></title>
<link><![CDATA[http://www.ahtmbv.cn/en/index.php?case=archive&act=show&aid=331]]></link>
<description><![CDATA[Knowledge of the use of submersible pumps
Submersible pump in the use of frequent failure, many of which are due to the use of stainless steel submersible pump, caused by improper maintenance. Submersible pump in the use of the maintenance process must pay attention to the following questions.
1, submersible pump can not be dehydrated operation. Under anhydrous conditions, the test run time shall not exceed 5 minutes. In the pumping process, if the water level continues to decline, must pay attention to not allow the pump to work out of the water.
2, submersible pump can not be …]]></description>
<pubDate>2016-08-02 09:47:37</pubDate>
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<item id="3">
<title><![CDATA[Tianma valve - submersible pump fault phenomenon and trouble]]></title>
<link><![CDATA[http://www.ahtmbv.cn/en/index.php?case=archive&act=show&aid=330]]></link>
<description><![CDATA[Fault phenomenon and elimination method of submersible pump
Submersible pumps do not have water, indirect water or a lack of water
1, check the motor. To see whether the motor has been started, not starting, check the motor circuit, circuit fault can be excluded; see the motor circuit is connected to the correct, check whether the pump reverse, reverse the pump, the power supply line can be changed.
2, check the pipeline. To see whether there is blocking, pipeline rupture, strainer is blocked. If the pipeline rupture should be repair welding or tube, remove the blockage, the fau…]]></description>
<pubDate>2016-08-02 09:46:58</pubDate>
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<item id="4">
<title><![CDATA[Stainless steel self priming sewage pump to ensure the norma]]></title>
<link><![CDATA[http://www.ahtmbv.cn/en/index.php?case=archive&act=show&aid=329]]></link>
<description><![CDATA[Stainless steel Self-priming sewage pump is developed based on similar products at home and abroad study repeatedly on the technology of a new product, the set of self suction pump and non clogging sewage in one, using the mixed type axial backflow, and the pump body. The unique design of the impeller, as the general self suction water pump. Need to install the valve and irrigation water, and suction with large particles and long fiber solid impurities unwrapping.
Shanghai Shengou pump valve Co., self suction sewage pump compared with the domestic similar products, has the advanta…]]></description>
<pubDate>2016-07-13 17:10:59</pubDate>
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<item id="5">
<title><![CDATA[High voltage electric diaphragm pump, how to install?]]></title>
<link><![CDATA[http://www.ahtmbv.cn/en/index.php?case=archive&act=show&aid=328]]></link>
<description><![CDATA[High voltage electric diaphragm pump is a positive displacement pump, the electric motor as the power source, it has the advantages of self suction pump, shield pump, pump, submersible pump and other impurity pump and a front stage. Also do a variety of solid-liquid separation equipment device to send.
DBY series electric diaphragm pump factory production is a new type of electric diaphragm pump, BLY series cycloid reducer drive power, instead of the traditional turbine worm reducer. At the same time, because in recent years has made breakthrough progress. The diaphragm material f…]]></description>
<pubDate>2016-07-13 17:10:15</pubDate>
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<item id="6">
<title><![CDATA[Fundamentally solve the problem of pumping water and other a]]></title>
<link><![CDATA[http://www.ahtmbv.cn/en/index.php?case=archive&act=show&aid=327]]></link>
<description><![CDATA[Self priming pump suction is not the reason and treatment of water, what are the reasons?
Self priming pump water inlet pipe and pump body with air
(1) some users before the start of the pump does not fill enough water, sometimes look like the water has been poured from the vent overflow, but did not turn the pump shaft to the air completely discharged, resulting in a little air left in the water pipe or pump body.
(2) in contact with the pump inlet of the horizontal application of reverse flow direction, fell more than 0.5% slope, connect one end of the highest import pumps, do…]]></description>
<pubDate>2016-07-13 17:09:33</pubDate>
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<item id="7">
<title><![CDATA[Solution to the noise of centrifugal pump]]></title>
<link><![CDATA[http://www.ahtmbv.cn/en/index.php?case=archive&act=show&aid=326]]></link>
<description><![CDATA[1, for example, the user uses the ISW horizontal centrifugal pump products and liquid level in the installation than the pump inlet pipe is low, not to install the valve cause horizontal centrifugal pump to appear the phenomenon, this situation should install the valve can restart diversion pump, self suction centrifugal pump or change to a more suitable.
2, turn the parts loose or damaged, tighten loose parts or replacement.
3, the stent is not strong or pipeline caused by pump support pipeline vibration, the solution is to strengthen the pipeline support, should not rely on pum…]]></description>
<pubDate>2016-06-04 09:15:16</pubDate>
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<item id="8">
<title><![CDATA[Why diaphragm is easy to damage the diaphragm]]></title>
<link><![CDATA[http://www.ahtmbv.cn/en/index.php?case=archive&act=show&aid=325]]></link>
<description><![CDATA[In the import and export of material in the process of the diaphragm around both sides of the force, the maximum 4800kN, due to the continuous alternating force, easy to damage and cracking, the diaphragm design life of 8000h diaphragm pump, the working pressure is 6MPa, the reason is easy to damage the pump diaphragm are as follows:
The 1 air chamber is not clean, the gas volume varies with the change of liquid pressure, promote the formation of air hammer, diaphragm local stress increases, the diaphragm will break.
2 of the diaphragm chamber volume, if the feed is not stable, l…]]></description>
<pubDate>2016-06-04 09:14:27</pubDate>
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<item id="9">
<title><![CDATA[What kind of sewage pump]]></title>
<link><![CDATA[http://www.ahtmbv.cn/en/index.php?case=archive&act=show&aid=324]]></link>
<description><![CDATA[1, vertical non clogging sewage pump, vertical sewage pump is the main characteristic of imports in the export and import and export in that direction can be arbitrary transfer, adaptation and installation space is mainly restricted areas, water and at the bottom of the pool and the installation of a valve mounted directly on the surface of the pool on the water absorption of water. Vertical type sewage pump can be divided into liquid under the long axis, vertical type, or submersible sewage pump can also be called a vertical sewage pump.
2, the horizontal non clogging sewage pump…]]></description>
<pubDate>2016-06-04 09:13:55</pubDate>
</item>
<item id="10">
<title><![CDATA[Hydraulic control valve repair and maintenance?]]></title>
<link><![CDATA[http://www.ahtmbv.cn/en/index.php?case=archive&act=show&aid=65]]></link>
<description><![CDATA[&nbsp;Hydraulic control valve is a hydraulic control valve, hydraulic control valve is composed of a main valve and pilot valve attached to the catheter, a pilot valve, needle valve, ball valve and pressure gauge, and so on. According to the use of purpose, function and location of the different can be developed into a remote control float valve, reducing valve, slow closing check valve, flow control valve, pressure relief valve, hydraulic control valve, water pump control valve, etc..
Hydraulic control valve should be installed before the filter, and should be easy to sewage requ…]]></description>
<pubDate>2016-05-26 14:52:22</pubDate>
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<item id="11">
<title><![CDATA[Basic knowledge and working principle of regulating valve]]></title>
<link><![CDATA[http://www.ahtmbv.cn/en/index.php?case=archive&act=show&aid=64]]></link>
<description><![CDATA[&nbsp;Regulating valve for regulating the flow, pressure and liquid level of the medium. According to adjust the position of the signal, the valve automatically controls the opening, so as to achieve the medium flow, pressure and liquid level regulation. Regulating valve electric control valve, pneumatic control valve and hydraulic valve, etc.. This manual mainly introduces the electric control valve and pneumatic valve two kinds of. Control valve by the electric actuator or pneumatic actuator and control valve two parts. Regulation and is usually divided into direct single seat ty…]]></description>
<pubDate>2016-05-26 14:51:26</pubDate>
</item>
<item id="12">
<title><![CDATA[Working principle and classification of balance valve]]></title>
<link><![CDATA[http://www.ahtmbv.cn/en/index.php?case=archive&act=show&aid=62]]></link>
<description><![CDATA[&nbsp;Hydraulic balance equipment can be divided into static and dynamic balance equipment. Static hydraulic balancing device are mainly static balance valve, dynamic hydraulic balance device mainly dynamic flow balance valve, dynamic differential pressure control valve, dynamic balance electric two-way valve, combined or integrated dynamic balance electric regulating valve.
The function of static balance valve in water system is to eliminate the static hydraulic imbalance and to realize the system to achieve the static hydraulic balance. Dynamic hydraulic balance equipment in the…]]></description>
<pubDate>2016-05-26 14:50:28</pubDate>
</item>
<item id="13">
<title><![CDATA[Selection of vacuum pump for seven factors]]></title>
<link><![CDATA[http://www.ahtmbv.cn/en/index.php?case=archive&act=show&aid=61]]></link>
<description><![CDATA[&nbsp;Vacuum pump selection is the most important type of pump type, the type of pump is mainly determined by the amount of gas required by the job, vacuum degree or exhaust gas pressure, pump work should be avoided in the maximum vacuum or near the maximum exhaust pressure operation. In this area, not only the efficiency is very low, but the work is not stable, it is easy to produce vibration and noise. For the vacuum pump with a high degree of vacuum, the operation of this area is often the phenomenon of cavitation, the obvious sign of this phenomenon is that there is noise and v…]]></description>
<pubDate>2016-04-13 14:49:34</pubDate>
</item>
<item id="14">
<title><![CDATA[What is the reason that affects the efficiency of the vacuum]]></title>
<link><![CDATA[http://www.ahtmbv.cn/en/index.php?case=archive&act=show&aid=60]]></link>
<description><![CDATA[&nbsp;With the rapid development of China&#039;s economy, China&#039;s vacuum pump industry has maintained a rapid growth momentum, and to achieve sustained and stable development. At the same time, the vacuum pump enterprises and users are constantly exploring how to promote the efficient operation of the vacuum pump, which is the impact of the efficiency of the vacuum pump, what?.
Influence factors:
1, steam pressure
Steam pressure is low and the pressure fluctuations have a greater impact on the capacity of the vacuum pump, so the steam pressure should not be less than the re…]]></description>
<pubDate>2016-04-13 14:48:14</pubDate>
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<item id="15">
<title><![CDATA[How to improve the self absorption time and ability of self]]></title>
<link><![CDATA[http://www.ahtmbv.cn/en/index.php?case=archive&act=show&aid=58]]></link>
<description><![CDATA[1 must open the discharge valve to start
The gas in the suction pipe of the suction pipe is to be drawn away from the suction pump, so that the gas can be started and the gas can be discharged from the discharge port.
2 self suction pump chamber to have a sufficient amount of liquid
If there is no liquid in the cavity of the suction centrifugal pump, it can not form a mixture of gas and liquid. Since the suction pump cavity is too small can also play a role in pumping gas.
The experiment of a self suction centrifugal pump shows that the pumping capacity is closely related to th…]]></description>
<pubDate>2016-04-13 14:47:19</pubDate>
</item>
<item id="16">
<title><![CDATA[Principle and application of self suction pump]]></title>
<link><![CDATA[http://www.ahtmbv.cn/en/index.php?case=archive&act=show&aid=56]]></link>
<description><![CDATA[&nbsp;Self suction pump is a commonly used pump in the south. The principle is the use of the water flow momentum, driven impeller pump impeller to pump the water to the bank above. This pump can be pumped into the river, but it must be in a hurry, or there is a gap.
Self priming pump and general centrifugal pump.
Centrifugal pump before work, the pump body and the water pipe must be filled with water into a vacuum state, when the impeller is quick to rotate, the water is very fast rotating, rotating the water under the action of centrifugal force from the impeller, the water is …]]></description>
<pubDate>2016-03-06 14:44:25</pubDate>
</item>
<item id="17">
<title><![CDATA[Check valve low carbon environmental protection is the devel]]></title>
<link><![CDATA[http://www.ahtmbv.cn/en/index.php?case=archive&act=show&aid=55]]></link>
<description><![CDATA[&nbsp;Check valve development and industrial enterprises development has a close relationship, the development of industrial enterprises, the use of the check valve, in order to adapt to the development of various industrial enterprises, check valve manufacturers must be carried out product reform, innovation, so as to keep pace with the development of industrial enterprises.
Check the quality of the upgrade, compared to the early check valve manufacturing process of crude, rough, modern check back valve manufacturing process, check valve product quality has been a qualitative lea…]]></description>
<pubDate>2016-03-06 14:42:44</pubDate>
</item>
<item id="18">
<title><![CDATA[Knowledge of valve selection]]></title>
<link><![CDATA[http://www.ahtmbv.cn/en/index.php?case=archive&act=show&aid=53]]></link>
<description><![CDATA[&nbsp;Valve is an important pressure pipe element in the oil chemical plant, which has the function of cutting off, adjusting, guiding, preventing backflow, stabilizing pressure, diversion or overflow, pressure relief, etc..
Varieties and specifications of the valve is very wide, according to the function and the structure of the valve opening and closing parts, the valve can be divided into gate valve, globe valve, throttle valve, ball valve, butterfly valve, butterfly valve, check valve, pressure reducing valve, diaphragm valve, steam trap, safety valve, etc.. Valve opening and …]]></description>
<pubDate>2016-03-06 14:41:44</pubDate>
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<item id="19">
<title><![CDATA[Small knowledge in the use of butterfly valve]]></title>
<link><![CDATA[http://www.ahtmbv.cn/en/index.php?case=archive&act=show&aid=52]]></link>
<description><![CDATA[&nbsp;30 years, the United States invented the butterfly valve, the 50&#039;s into Japan, to the 60&#039;s in Japan in general, and in our country is the promotion of the 70 years after the. At present, the world is generally in the DN300 mm or more butterfly valve has been gradually replaced. Butterfly valve compared with the valve opening and closing time is short, the operation is small, small installation space and light weight. In DN1000, for example, about 2T, while the valve is about 3.5T, and the valve is easy to combine with a variety of driving device, has good durability…]]></description>
<pubDate>2016-02-24 14:40:29</pubDate>
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<item id="20">
<title><![CDATA[Function and working principle of safety valve]]></title>
<link><![CDATA[http://www.ahtmbv.cn/en/index.php?case=archive&act=show&aid=51]]></link>
<description><![CDATA[&nbsp; &nbsp; &nbsp;Safety valve is an automatic pressure relief device, which is the most important one of the pressure vessel. Its function is: when the pressure exceeds a certain value, the pressure of the medium itself automatically opens the valve. When the pressure drop to the allowable value, the valve will automatically shut down, so that the pressure in the container is always lower than the upper limit of the allowable pressure, automatic control of the overpressure and may occur, so the safety valve is also known as the ultimate protection device of the pressure vessel.…]]></description>
<pubDate>2016-02-24 14:39:40</pubDate>
</item>
<item id="21">
<title><![CDATA[Classification and characteristics of the cut-off valve]]></title>
<link><![CDATA[http://www.ahtmbv.cn/en/index.php?case=archive&act=show&aid=50]]></link>
<description><![CDATA[&nbsp;Commonly used cut-off valve has the following:
1) straight cut off valve
2) DC type valve: in the DC type or Y-shaped valve, the valve body and the main channel flow into a slash, this flow state the extent of the damage than the conventional cut-off valve to small, so by the valve pressure loss is also the corresponding small.
3) the angle type valve: in the angle type valve, the fluid only needs to change the direction, so that the pressure drop through the valve is smaller than the conventional structure.
4) the plunger type valve: this type of valve is a conventional …]]></description>
<pubDate>2016-02-24 14:38:42</pubDate>
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<item id="22">
<title><![CDATA[Feature and classification of vacuum pump]]></title>
<link><![CDATA[http://www.ahtmbv.cn/en/index.php?case=archive&act=show&aid=49]]></link>
<description><![CDATA[&nbsp;The use of mechanical, physical, chemical, physical and chemical methods to pump gas, in order to obtain and maintain the vacuum device. Vacuum pumps and other equipment (such as vacuum vessel, vacuum valve, vacuum measuring instrument, connecting pipe, etc.), which is widely used in electronics, metallurgy, chemical industry, food, machinery, medicine, aerospace and other departments.
According to its working principle, basically divided into two types of gas delivery pump and gas trapping pump.
Gas pump: 1, liquid ring vacuum pump (water ring vacuum pump) 2, reciprocating…]]></description>
<pubDate>2016-01-26 14:36:58</pubDate>
</item>
<item id="23">
<title><![CDATA[Working principle and characteristics of screw pump]]></title>
<link><![CDATA[http://www.ahtmbv.cn/en/index.php?case=archive&act=show&aid=48]]></link>
<description><![CDATA[&nbsp;Screw pump is a kind of single screw pump, its main working part is the eccentric screw (called the rotor) and the inner surface of the screw bushing (called stator). Its working principle is when the motor drives the pump shaft rotation, the screw on the one hand, the axis of rotation, on the other hand, it is also the inner surface of the liner rolling, so the formation of the pump seal chamber. Every turn of the screw every week, the sealing cavity of the liquid to move forward a pitch, with the continuous rotation of the screw, the liquid spiral way from a seal cavity to …]]></description>
<pubDate>2016-01-26 14:32:53</pubDate>
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