法兰连接低温截止阀系列 DJ41H/Y/W

产品结构特点 Construction features

低温截止阀的阀杆轴线与阀座密封面垂直。阀杆开启或关闭行程相对较短，并具有非常可靠的切断动作，使得这种阀门非常适合作为介质的切断或调节及节流使用。低温截止阀一旦处于开启状态，它的阀座和阀瓣密封面之间就不再有接触，因而它的密封面机械磨损较小，由于大部分截止阀的阀座和阀瓣比较容易修理或更换密封元件时无需把整个阀门从管线上拆下来，这对于阀门和管线焊接成一体的场合是很适用的。介质通过此类阀门时的流动方向发生了变化，因此截止阀的流动阻力较高于其它阀门。
The stem axis of the low - temperature globe valve is perpendicular to the seat cover. The stem opens or closes relatively short and has very reliable cutting action, making the valve very suitable for cutting or regulating and throttling the medium. Low temperature cut-off valve once in an open position, it will no longer have a contact between the seat and clapper sealing surfaces, and thus its sealing surface mechanical wear and tear is small, because most of the cut-off valve seat and valve disc is easy to repair or replace the whole valve sealing components without removed from the pipeline, for the valve and pipeline welding into one occasion is very applicable. The flow direction of the medium through such valve changes, so the flow resistance of the globe valve is higher than that of other valves.

产品特征 Spericfications

适用介质：水、气、油品、天然气和酸碱腐蚀性介质
适用温度：-196~425℃
驱动方式：手动、气动、电动等
公称压力：1.0~6.3MPa
公称通径：DN50~500mm
Applicable media: water, gas, oil, gas and acid and alkali corrosive medium
Applicable temperature: -196~425℃
Driver: manual, pneumatic, electric, etc
Nominal pressure: 1.0~6.3MPa
Nominal size: DN50~500mm

技术规范 Technical specification

试验压力 Test prssure

截止阀结构长度和外接尺寸 Main connection dimensions