■主要特點(diǎn)及用途
1、本產(chǎn)品的閥蓋填料室具有水密封結(jié)構(gòu)，當(dāng)接口通入壓力0.6～1MPa的水時(shí)，可使系統(tǒng)與大氣隔離，保證系統(tǒng)具有良好的氣密封。
2、DS/Z型系列采用雙閘板雙向彈性密封，啟閉靈活、迅速、密封可靠。
3、產(chǎn)品結(jié)構(gòu)簡(jiǎn)單、緊湊合理、檢修方便、使用壽命長(zhǎng)。
4、在管路上作啟閉裝置用，必須處于全開(kāi)或全閉狀態(tài)，不得用于調(diào)節(jié)流量。
5、閥門連接方式有法蘭和焊接兩種，驅(qū)動(dòng)方式為手動(dòng)和電動(dòng)。
6、Ds系列水封閥門適用于公稱壓力≤10.OMPa，工作溫度≤425℃，工作介質(zhì)為水、蒸汽、油品和非氣體的管路上作啟閉裝置用，尤其適用于火電廠汽機(jī)真空冷凝系統(tǒng)。
■Chief features and usages
1.c chamber of packing of the valve’s Bonnetis of a water-sealed structure which， when the water of 0.6-1 MPa pressur goesinto the mouthpiece.can make the system isolated from air to ensure the system with a goodieak prootness.
2.ModeiDS/Z series use duai-gate dual-direction elastic seaiings， being flesible and fast to open and close.reliable sealing.
3.Simpie compact and reaso able st ructure easy to overhaulandiong duration
4.When to be used as the open and close device on pipeiines，it must bein fully-opened or fuily-closed state and unallowed to be used for flow adjustment.
5 Two ways of connection by flange and weiding two driving ways manually and elect ricallyg.
6.Sujtable to act as the open and close devjce for the pjpelines with the working medium of water， steam oilgoods and noncor rosive gas， especially for the vacuum condensation of the steam turbinein steam power palnts