进口内螺纹闸阀德国洛克品牌用心制造

 

进口内螺纹闸阀结构特点:

1、结构简单，制造和维修比较方便。

2、工作行程小，启闭时间短。

3、密封性好，密封面间磨擦力小，寿命较长。

内螺纹闸阀的缺点如下：

1、流体阻力大，开启和关闭时所需力较大。

2、不适用于带颗粒、粘度较大、易结焦的介质。

3、调节性能较差。

                                                                                 

进口内螺纹闸阀规格参数：

阀体材料：WCB、304、316

阀门口径：DN15-80

阀门压力：PN16-PN25

连接标准：ASME B16.10、DIN2501

控制方式：手动

密封材料：PTFE、304

工作温度：-20℃至+150℃(特殊定做+450°)

                                                                                    

进口内螺纹闸阀工作原理:

闸阀的种类 ,按密封面配置可分为楔式闸板式闸阀和平行闸板式闸阀 , 楔式闸板式闸阀又可分为:单闸板式、双闸板式和弹性闸板式；平行闸板式闸阀可分为单闸板式和双闸板式。按阀杆的螺纹位置划分，可分为明杆闸阀和暗杆闸阀两种。闸阀关闭时 , 密封面可以只依靠介质压力来密封 , 即依靠介质压力将闸板的密封面压向另一侧的阀座来保证密封面的密封，这就是自密封。大部分闸阀是采用强制密封的 , 即阀门关闭时，要依靠外力强行将闸板压向阀座 , 以保证密封面的密封性。

Working principle of inlet internal thread gate valve:
According to the sealing surface configuration, gate valve can be divided into wedge gate valve and parallel gate valve. Wedge gate valve can be divided into single gate plate, double gate plate and elastic gate valve. Parallel gate valve can be divided into single gate plate and double gate plate. According to the thread position of the stem, it can be divided into two types: rising stem gate valve and Non rising stem gate valve. When the gate valve is closed, the sealing surface can only be sealed by the medium pressure, that is, the sealing surface of the gate valve is pressed to the valve seat on the other side by the medium pressure to ensure the sealing of the sealing surface, which is self sealing. Most gate valves are forced to seal, that is, when the valve is closed, the gate should be forced to the valve seat by external force, so as to ensure the tightness of the sealing surface.
                                                                               

进口内螺纹闸阀产品简介:

德国洛克《DE LOCKE》进口内螺纹闸阀的启闭件是塞形的阀瓣，密封面呈平面或锥面，阀瓣沿流体的中心线作直线运动。阀杆的运动形式，有升降杆式（阀杆升降，手轮不升降），也有升降旋转杆式（手轮与阀杆一起旋转升降，螺母设在阀体上）。纹管截止阀只适用于全开和全关，不允许作调节和节流。

Introduction of imported internal thread gate valve
The opening and closing parts of the internal thread gate valve imported from German Locke are plug-shaped disc. The sealing surface is flat or conical, and the disc moves in a straight line along the center line of the fluid. The movement forms of the valve stem include the lifting rod type (the valve stem rises and falls, but the hand wheel does not rise and falls), and the lifting rotary rod type (the hand wheel and the valve stem rise and fall together, and the nut is set on the valve body). The bellows globe valve is only suitable for full opening and full closing, and it is not allowed to adjust and throttle.