Offset valve is a special performance of the valve, which exists in the excellent flow characteristics, the closure of the instructions of the valve, the opening lock installation and traffic flow for the determination of small valves. Application of common intelligent measuring instruments, the output valve model and the opening value, based on the measured pressure signal can be indirectly through the offset valve flow value, just in the branch and the user outlet fitted with the appropriate specifications of the offset valve, And stop using a common intelligent measuring instrument Disposable, you can make each user's flow to reach the set value. Offset valve is under hydraulic conditions, play a static, dynamic imbalance conditioning valve. Such as: dynamic offset valve, static offset valve. Dynamic offset valve also known as offset valve, manual offset valve, the number of word-locking offset valve, two-position regulator valve, which is through the valve seat and seat gap (opening), to change through the valve activity barrier to reach the conditioning Means of flow, its role for the fragmentation of the barrier, the new amount of water can be adjusted in accordance with the assumption that the imbalance of deployment, each branch according to the same contrast increase or decrease, still satisfied with the future needs of part of the load flow needs, Play a role in heat disorders. Static offset valve is divided into static flow misalignment valve, static pressure offset valve, self-pressure control valve itself, etc. Offset valve attributed to the scope of the regulator valve, its mission is to change the valve seat and valve seat clearance (ie, opening) , Change the fluid through the sluggish valve barrier to reach the flow of conditioning means. Offset valve is equivalent to a full barrier to change the dieting components, for the absence of fluid can be tightened by the flow equation available. Compared with other valves, the secondary valve has secondary characteristics: (1) the characteristics of the curve flow, that is, the valve is always the pressure difference is not changing conditions, the flow and opening roughly linear relationship; (2) accurate Opening instructions; (3) there is a degree of locking installation, non-governor did not have the freedom to change the opening; table connection, you can show the local valve always pressure and flow through the valve. Although offset valve storage is a lot of strengths, but it is still using water system air conditioner with no less. If the Department scores are not handled properly, the characteristics of the misalignment valve can not be fully displayed. The role of the offset valve is to conditioning the system within the fragmentation, the deployment of the various points (such as each floor) booking traffic. Displacement valves are installed at the exit of each building, which can cause the total flow of the thermal system to lose its proper deployment. Displacement valve principle is the body of the anti-conditioning, when the exit pressure is increased, the initiative to reduce the diameter, reduce the flow of change, and vice versa. If the reverse, this conditioning system has no effect. And the conditioning valve, is non-directional, reverse pressure can be reduced even to open the flow. Device offset valve is not only for better warmth, there is no reverse performance. If it is anti-installed, it is man-made fallacy, it will correct. Offset valve attributed to the scope of the conditioning valve, its mission principle is to change the gap between the valve core and the seat (ie, opening), change the fluid through the sluggish barrier of the valve to reach the flow of conditioning means. Offset valve is equivalent to a full barrier to change the dieting components, for the absence of fluid can be tightened by the flow equation available. Kv is the valve coefficient of the offset valve. Its definition is: When the offset valve is always differential pressure of 1bar (about 1kgf / cm2), the value of the flow through the offset valve (m3 / h). The valve coefficient when the offset valve is fully open equals the sluggishness of the normal valve. If the misalignment valve opening has not changed, the valve coefficient Kv has not changed, that is to say the valve coefficient Kv from the opening. After the measured value is not the same degree of opening under the valve coefficient, the offset valve can be used as a volume conditioning flow of diet components. Is adjusting the pipeline network disorders, the hose will be adjusted off the valve pressure measurement valve and public intelligence measuring instrument connected to the gauge can be seen through the valve flow value (and pressure drop value), by measuring the man-machine for the words , The vector output of the offset valve at the flow of the value of the request, the gage after planning, synthesis, obtained when the piping system reaches the hydraulic imbalance valve opening value. Offset valve attributed to the scope of the conditioning valve, its mission principle is to change the gap between the spool and the seat, change the fluid through the sluggish valve barrier to reach the flow of conditioning means. 1. There should be no change at any time Offset valve opening pipe network system and the end of a piece of equipment, and a test environment, the use of public intelligence gages for the full adjustment of the off-set valve adjustment, and the valve opening to lock the pipeline network to complete the imbalance of hydraulic conditions . Network pipe network malformations in the process of operation, there should be no change in the degree of misalignment valve opening, in particular, there is no emergency opening lock installation. 2. No longer need to install the cut-off valve When a city is undergoing maintenance, the misalignment valve on the ring can be opened. At this time, the misalignment valve functions as a cut-off valve to cut off the flow of water. After the overhaul ends, it returns to the original locked position. Thus installed offset valve, there is no need to install stop valve. 3. Fragmentation (or banned) should be reinstated in the loop around the city when the adjustment is being added (or banned) in the pipeline network around the city, in addition to should be more (or open) echo valve disorders, the guidelines of all newly established Of the offset valve and the original system of ring valves in the city should be from the new swap setting (the original city ring branch valve does not need to be re-transferred). In the air conditioner and heating system, as a system of water transmission and distribution of water repeatedly fragmented hydraulic imbalance is extremely important. An imbalance in the hydraulic system is satisfied with the needs of users, waste the basis of energy consumption. In the air conditioner and heating system fragmentation, cold (heat) media by the closed pipe system transmission and distribution to the user. Regarding the assumption of a high-quality pipe network system, each user is in the end to grasp the valve (electric control valve, fire control valve, etc.) the opening of 100% should be lost when the expected amount of water, and the user is the end of the valve opening degree of control You can either lose the required traffic without disturbing each other. That piece of water system is a hydraulic system of disorder, or else it is hydraulic system without disorders, hydraulics without disorders, otherwise known as the hydraulic balance. This hydraulic balance is random and static. This balanced dynamic offset valve helpless deal with the situation, only with static offset valve to deal with.
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