进口蒸汽截止阀
德国莱克LIK品牌,进口蒸汽截止阀,高温蒸汽截止阀只适用于全开和全关，一般不用来调节流量，定做时允许作调节和节流。截止阀的启闭件是圆柱形的阀瓣，密封面呈平面或锥面，阀瓣沿流体的中心线作直线运动。国标截止阀公称压力1.6MPa-16.0MPa，工作温度-29～650℃的石油、化工、制药、化肥、电力行业等各种工况的管路上，切断或接通管路介质。驱动方式有手动、齿轮传动、电动、气动等
进口蒸汽截止阀产品优点
1、产品结构合理、密封可靠、性能优良、造型美观；
2、密封面堆焊Co基硬质合金、耐磨、耐腐、抗摩擦性能好、使用寿命长；
3、阀杆调质及表面氮化处理，有良好的抗腐和抗摩擦性能；
4、双重密封，性能更可靠，零泄漏；
5、阀杆升降位置指示，更直观；
6、零件材质，法兰和对焊编号尺寸可根据实际工况或用户要求合理选配，满足各种工程需要。
进口蒸汽截止阀的作用
原文：
截止阀的作用： 截止阀也是广泛使用的一种阀门。一般口径在100 mm以下。它的工作原理与闸阀 相近，只是关闭件(阀瓣)沿阀座中心线移动。它在管路中起关断作用，亦可粗略
调节流量。
截止阀的优点：制造容易，维修方便，结实耐用。 截止阀的缺点：只允许介质单向流动，安装时有方向性。流阻大，密封性差。 截止阀按结构不同分直通式、直角式、直流式、平衡式。工程中一般使用法兰直 通式和内螺纹直通式。截止阀有方向性，不可按反。也不宜倒安。 截止阀在生产、生活中，过去常用直通式、小口径截止阀，现在已渐渐被球阀所
取代。
The role of the cut-off valve: Globe valve is a kind of widely used valve. The average diameter under 100 mm. It works similar to gate valves, just closed a move along the seat centerline (disc). It shut off role in line, can be roughly adjust flow. < br / > The advantages of the cut-off valve, manufacturing easy, easy maintenance, sturdy and durable. Globe valve disadvantages: only allowed to medium flows one-way, installation direction. Big flow resistance, bad sealing. Globe valve straight through, right Angle type, different points of the structure, balance type. Engineering in general use flange straight through and female cut-through. Globe valves have a direction, not according to the reverse. Unfavorable also fell. Globe valves in the production, life, used to straight-through, small cut-off valve, is now gradually replaced by ball valve.
进口蒸汽截止阀的安装技术要求
(1)在搬运安装过程中，阀的传动装置不能做起吊点。
(2)安装的仔细检查法兰、螺栓、垫子质量，应没有毛刺、凸凹不平、裂纹等缺陷。
(3)安装过程中检查法兰、管子安装情况，应无错口、错孔、张口、偏D等现象。
(4)安装时法兰密封面必须清洗干净，螺栓、垫子不应沾有杂质。
(5)垫子应与管子或管件同心。
(6)上螺栓时应用力均匀，对称上紧。
(7)安装前还应根据操作条件选择好合适的密封垫和螺栓。
译文：
Globe valve installation technical
requirements:
(1) in the process of handling the installation, the valve drive device can't
be a lifting point.
(2) the installation of quality, carefully check the flange, bolts, cushion
should be no burr, bumpy, crack defects, etc.
(3) the installation process to check the flange, pipe installation, should
have no wrong, wrong hole, mouth, partial D wait for a phenomenon.
(4) the flange sealing surface must be clean, when installation bolt, pads
should not be stained with impurities.
(5) In the mat should be one of pipe or tube.
(6) on the bolt when applied force uniform, symmetrical tightening.
(7) before installation should also choose right according to operating
conditions of gasket and the bolt.
进口蒸汽截止阀的特点
原文： 截止阀具有哪些特点？
(1)截止阀结构比闸阀简单，制造与维修都较方便。
(2)密封面不易磨损及擦伤，密封性好，启闭时阀瓣与阀体密封面之间无相对滑动，因而磨损与擦伤均不严重，密封性能好，使用寿命长。
(3)启闭时，阀瓣行程小，因而截止阀高度比闸阀小，但结构长度比闸阀长。
(4)启闭力矩大、启闭较费力，启闭时间校长。
(5)流体阻力大，因阀体内介质通道较曲折，流体阻力大，动力消耗大。
(6)介质流动方向公称压力PN≤16MPa时，一般采用顺流，介质从阀瓣下方向上流；公称压力PN≥20MPa时，一般采用逆流，介质从阀瓣上方向下流．以增加密封件能。使用时，截止阀介质只能单方向流动，不能改变流动方向。
(7)全开时阀瓣经常受冲蚀。
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。
截止阀的阀瓣一旦处于开启状况，它的阀座和阀瓣密封面之间就不再的接触，并具有非常可靠的切断动作，合得这种阀门非常适合作为介质的切断或调节及节流使用。
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。截止阀的特点。
译文：
The cut-off valve with what? (1) than the gate valve structure is simple, easy manufacture and repair. (2) the sealing surface is not easy to wear and abrasion, good sealing performance, opening and closing the valve with the valve sealing surface is no relative sliding, so the wear and abrasion were not serious, good sealing performance, long service life. (3) opening and closing the valve stroke is small, therefore, high ratio of gate valves is small, but the structure than the gate length length. (4) the opening and closing torque is large, open and close more strenuous, opening and closing time of the principal. (5) for the valve body fluid resistance, media channels more twists and turns, fluid resistance, large power consumption. (6) the flow direction of medium nominal pressure PN ≤ 16MPa, the media from the valve flow, under the direction of the upper; nominal pressure PN ≥ 20MPa, generally using countercurrent, media from the valve on the downstream direction to increase the seal. When in use, only the valve medium flows in only one direction, can not change the flow direction. (7) fully open the valve flap is often affected by erosion. Cut-off valve stem axis and the valve seat sealing surface of the vertical. Valve stem to open or close the relatively short trip, and have very reliable cutting action, making this valve is suitable for medium cut or regulation and throttle use. once the valve is the valve open position, its valve seat and valve sealing surface is no longer between the contact, and very reliable cutting action, and combine this valve is suitable for medium cut or regulation and throttle use. once the valve is turned on, there is no contact and its seat and disc sealing surface between, so it's sealing surface mechanical wear small, as there is no need to remove the valve from the pipeline to most of the valve seat and valve flap is easier to repair or replacement of sealing components, which the valves and pipes welded into one of the occasion is applicable. A change in the flow direction of medium through the valve when, so a higher cut-off valve flow resistance in the other valve