丹富斯自力式壓差控制閥產(chǎn)品說(shuō)明：
自力式壓差控制閥，亦稱壓差平衡閥、壓差調(diào)節(jié)閥、壓差閥、流量壓差平衡閥。DFZYC-16型自力式壓差控制閥，不需外來(lái)能源，依靠被調(diào)介質(zhì)自身壓力變化進(jìn)行自動(dòng)調(diào)節(jié)，自動(dòng)消除管網(wǎng)的剩余壓頭及壓力波動(dòng)引起的流量變化，恒定用戶進(jìn)出口壓差，有助于穩(wěn)定系統(tǒng)運(yùn)行。
丹富斯自力式壓控制閥性能特點(diǎn)：
該閥為雙閥瓣結(jié)構(gòu)，閥桿不平衡力小，結(jié)構(gòu)緊湊，用于供熱（空調(diào)）水系列中，恒定被控制系統(tǒng)的壓差，并有以下的特點(diǎn)：
1、恒定被控制系統(tǒng)壓差；
2、支持被控系統(tǒng)內(nèi)部自主調(diào)節(jié)；
3、吸收外網(wǎng)壓差波動(dòng)；
4、采用*的無(wú)級(jí)調(diào)壓結(jié)構(gòu)，控制壓差可調(diào)比可達(dá)25：1；
5、具備自動(dòng)消除堵塞功能;
6、法蘭尺寸符合GB4216.2中灰鑄鐵法蘭尺寸。
丹富斯自力式壓差平衡控制閥使用方法：
1、介質(zhì)流動(dòng)方向應(yīng)與閥體箭頭方向*；
2、自力式壓差控制閥應(yīng)安裝在回水管上，閥上接導(dǎo)壓管，導(dǎo)壓管的另一端與供水管連接，建議在導(dǎo)壓管供水端安裝1/2"球閥，以便啟動(dòng)消除堵塞功能；
3、在導(dǎo)壓管前的供水管上應(yīng)安裝過(guò)濾網(wǎng)，避免水質(zhì)太差造成該閥失去自動(dòng)調(diào)節(jié)功能；
4、供水管和該閥前的回水管應(yīng)分別裝設(shè)壓力表，便于調(diào)節(jié)控制壓差;
5、如發(fā)現(xiàn)該系統(tǒng)流量過(guò)大或過(guò)小，可能的原因是管道元件安裝時(shí)的雜物卡阻在閥塞上，可將1/2"球閥關(guān)閉3—5分鐘，這時(shí)如果是較輕堵塞，即可自動(dòng)消除，如還不能消除，則要拆開(kāi)閥門檢查消除堵塞物；
6、控制壓差調(diào)節(jié)方法：逆時(shí)針?lè)较蛘{(diào)節(jié)調(diào)壓閥桿，觀察壓差。
Dan fuss self-reliance type differential pressure control valve product description:
Self-reliance type differential pressure control valve, also known as differential pressure balancing valve and differential pressure regulating valve, differential pressure valve, flow valve differential pressure balance. DFZYC - 16 self-reliance type differential pressure control valve, without external energy, relying on the modulated medium pressure changes automatically adjust itself, automatic eliminate the residual pressure head and pipe network pressure fluctuation caused by the flow of change, constant user import and export pressure difference, help stabilize the system.
Dan fuss self-reliance type pressure control valve performance characteristics:
The valve for double disc structure, stem unbalanced force is small, compact structure, used for water heating (air conditioning) series, constant differential pressure of the control system, and has the following features:
1, the constant pressure difference control system;
2, support controlled system internal autonomic regulation;
3 differential pressure fluctuation, absorb the network;
4, the use of advanced stepless regulating structure, general control pressure adjustable ratio of 25:1;
5, have automatic eliminate congestion function;
6, flange size with GB4216.2 gray cast iron flanges in size.
Dan fuss self-reliance type differential pressure balance valve method of use:
1, the medium flow direction should be consistent with body direction arrow;
2, self-reliance type differential pressure control valve should be installed on the return pipe, valve guide pressure tube, on the other end of the guide pipe connected to the water supply pipe, it is recommended to guide pipe water supply side install 1/2 "ball valve, in order to start the eliminate congestion function;
3, in the guide tube on the water supply pipe should be installed in front of the screen pack, avoid the valve loses its ability to automatically adjust the poor water quality;
4, water supply and return pipe before the valve should be installed pressure gauge, facilitate adjustment control pressure difference;
5, if discover the system flow is too big or too small, the possible reasons is piping components installed with sundry jam in the valve plug, can be 1/2 "ball valve closed 3-5 minutes, then if it is a lighter plug, can be automatically eliminated, if can't eliminate, to open check valves eliminate the clog;
6, control differential pressure regulating methods: regulate the regulating stem counterclockwise, observe differential pressure.
