丹富斯平衡閥的選用原則：

平衡閥是一種特殊功能的閥門(mén)，閥門(mén)本身物特殊之處，只在于使用功能和場(chǎng)所有區(qū)別。 在某些行業(yè)中，由于介質(zhì)（各類(lèi)可流動(dòng)的物質(zhì)）在管道或容器的各個(gè)部分存在較大的壓力差或流量差，為減小或平衡該差值，在相應(yīng)的管道或容器之間安設(shè)閥門(mén)，用以調(diào)節(jié)兩側(cè)壓力的相對(duì)平衡，或通過(guò)分流的方法達(dá)到流量的平衡，該閥門(mén)就叫平衡閥。  黃銅平衡閥,絲扣平衡閥性能

(1)、直線(xiàn)型流量特性：即在閥門(mén)前后壓差不變情況下，流量與開(kāi)度大體上成線(xiàn)性關(guān)系；

(2)、有開(kāi)度鎖定裝置：非管理人員不能隨便改變開(kāi)度；表連接，可方便地顯示閥門(mén)前后的壓差及流經(jīng)閥門(mén)的流量。盡管平衡閥具有很多優(yōu)點(diǎn)，但它在空調(diào)水系統(tǒng)的應(yīng)用還存在不少問(wèn)題。如果這些問(wèn)題解決不好，平衡閥的特點(diǎn)并不能充分顯現(xiàn)出來(lái)。丹富斯平衡閥的作用是為了調(diào)節(jié)系統(tǒng)內(nèi)，各個(gè)分配點(diǎn)的（如每一個(gè)樓座）的預(yù)定流量。每一座樓的入口處都安裝平衡閥，可以使供暖系統(tǒng)的總流量得到合理分配。

丹富斯平衡閥的產(chǎn)品特點(diǎn)：        黃銅平衡閥,絲扣平衡閥性能

1、理想的調(diào)節(jié)性能

2、優(yōu)秀的截止功能

3、精確到1/10圈的開(kāi)啟狀態(tài)顯示

4、理論流量特性曲線(xiàn)為等百分比特性曲線(xiàn)

5、對(duì)應(yīng)每個(gè)整圈都有因定的流量系數(shù)，調(diào)試中只要測(cè)量出閥門(mén)兩端壓差，就可以方便計(jì)算出流經(jīng)閥門(mén)的流量

6、聚四氟乙烯和硅膠密封，密封性能可靠

7、內(nèi)升降閥桿，無(wú)須預(yù)留操作空間

8、它是一種組合閥。

 丹富斯平衡閥的安裝要點(diǎn)：          

靜態(tài)平衡閥操作復(fù)雜，調(diào)節(jié)時(shí)需配備智能儀表，即使有專(zhuān)業(yè)的技術(shù)人員用戶(hù)流量的藕合現(xiàn)象也很難使用戶(hù)達(dá)到平衡狀態(tài)。利用閥門(mén)KV值及閥門(mén)曲線(xiàn)來(lái)確定閥門(mén)開(kāi)度的方靜態(tài)平衡閥是常用的老水力平衡產(chǎn)品，它適合以熱源為主變流量的系統(tǒng)。調(diào)節(jié)時(shí)各用戶(hù)間流量相互藕合作用，真正的把龐大的熱用戶(hù)調(diào)節(jié)平衡是很難實(shí)現(xiàn)的。

平衡閥的原理是閥體內(nèi)的反調(diào)節(jié)，當(dāng)入口處壓力加大時(shí)，自動(dòng)減小通徑，減少流量的變化，反之亦然。如果反接，這套調(diào)節(jié)系統(tǒng)就不起作用。而且起調(diào)節(jié)作用的閥片，是有方向性的，反向的壓力甚至可以減少甚至封閉流量。 既然安裝平衡閥是為了更好的供暖，就不存在反裝的問(wèn)題。如果是反裝，就是人為的錯(cuò)誤，當(dāng)然就會(huì)糾正。平衡閥屬于調(diào)節(jié)閥范疇，它的工作原理是通過(guò)改變閥芯與閥座的間隙（即開(kāi)度），改變流體流經(jīng)閥門(mén)的流通阻力，達(dá)到調(diào)節(jié)流量的目的。平衡閥相當(dāng)于一個(gè)局部阻力可以改變的節(jié)流元件，對(duì)不可壓縮流體，由流量方程式可得。

   The principles of selecting Dan fuss balance valve:
Balancing valve is a special feature of the valve, the valve itself is only a special place, use function and field all the difference. In some industries, because the medium (all kinds of flowable substance) in different parts of a pipeline or a container exist a larger pressure difference or differential flow, in order to reduce the difference between or balance, the corresponding pipe or container install valve, used to adjust the relative balance of pressure on both sides, or to a flow balance by shunt method is called, the valve balancing valve.
(1), linear flow characteristics: namely in the valve before and after the pressure under the condition of unchanged, flow and opening roughly a linear relationship;
(2), a lock opening device: non management personnel can not change the opening degree; table connection, can conveniently display before and after the valve pressure difference and flow through the valve flow. Although the balance valve has many advantages, but its application in air conditioning water system there are still many problems. If these problems are solved, the characteristics of the balance valve is not fully apparent. Dan role Fusi balance valve to regulate and control system, the various distribution points (such as each gallery) scheduled traffic. The entrance of each floor are the installation of balancing valve, can make the total flow of the heating system to obtain the reasonable allocation.
Product features Dan fuss balance valve:
1, the ideal regulation performance
The cut-off function, excellent 2
3, accurate to the open state of 1/10 circle display
4, the theory of flow characteristic curve as the percentage of properties such as curve
5, corresponding to each full circle has caused by flow coefficient fixed, as long as the measurement of the pressure difference across the valve debugging, you can conveniently calculate the flow through the valve flow
6, PTFE and silicone sealing, reliable sealing performance
7, rising stem, without reservation operation space
8, it is a kind of combination valve.
Key points of installation of balancing valve Dan fuss:
Static balance valve operation is complex, the regulation to be equipped with smart meters, even with professional and technical personnel of user traffic coupled phenomenon is also very difficult to use the user equilibrium. The use of valves and valve KV value curve to determine the valve opening static balancing valve is a common old water balance products, it is suitable to heat the main variable flow systems. Regulation among user flow of mutual coupling, true to heat large users adjust the balance is difficult to achieve.
The principle of balance valve is the counter regulatory body, when the pressures at the entrance, automatically reduce the diameter to reduce the flow of change, and vice versa. If the reverse, this control system will not work. And regulate the role of the valves, is directional, pressure and even reverse flow can be reduced or even closed. Since the installation of balancing valve in order to better heating, there is no anti loading problem. If it is reversed, that is human error, will of course correction. The balance valve which belongs to the scope of control valve, its working principle is by changing the gap of the spool and the valve seat (i.e. opening), change the flow resistance of fluid flow through the valve to achieve the purpose of regulating traffic. Balancing valve throttling element is equivalent to a local resistance to change, the incompressible fluid, the flow equations can be obtained.