Hebei Huahui Valve Co., Ltd

  As a   Ball Check Valve Leading Supplier , share with you. 1.  Swing Check Valve : The disc of the swing check valve is disc-shaped and rotates around the rotation axis of the valve seat channel. Because the channel inside the valve is streamlined, the flow resistance is smaller than that of the lift check valve, which is suitable for Velocity and flow do not change in large diameter occasions, but it is not suitable for pulsating flow, and its sealing performance is not as good as the lifting type. Swing check valve is divided into three types: single, double and multiple. These three types are mainly divided by the valve diameter, in order to prevent the hydraulic shock when the medium stops flowing or flows backward. 2. Lift check valve: check valve with valve disc sliding along the vertical centerline of the valve body. Lift check valve can only be installed on horizontal pipelines. On high-pressure small-diameter check valves, the valve disc can be a ball. . The sh...

  The opening and closing parts of the   Resilient Seat Gate Valve   are gates. The movement direction of the gates is perpendicular to the fluid direction. The gate valve can only be fully opened and fully closed, and cannot be adjusted and throttled. The gate has two sealing surfaces. The two sealing surfaces of the most commonly used gate valves form a wedge shape. The wedge angle varies with the valve parameters, usually 50, and 2 ° 52 '' when the medium temperature is not high. The gate of the wedge gate valve can be made into a whole, called a rigid gate; it can also be made into a gate that can produce a small amount of deformation to improve its processability and make up for the deviation of the sealing surface angle during processing. The plate is called a spring gate. Resilient Seat Gate Valve Elastic seated gate valve is also called lift rod gate valve (also known as open rod gate valve). Usually, there is a trapezoidal thread on the lifting rod, and the rotar...

  To share with you as a   Butterfly Valve Supplier . Butterfly valve is a valve that uses a disc-shaped opening and closing piece to revolve around 90 ° to open, close or adjust the medium flow. The butterfly valve is not only simple in structure, small in size, light in weight, low in material consumption, small in installation size, small in driving torque, easy to operate, and fast, but also has good flow regulating function and closed sealing characteristics. It has been developed in recent decades. One of the fastest valve varieties.   Butterfly Valve   is very widely used. The variety and quantity of its use continue to expand, and it has developed to high temperature, high pressure, large caliber, high sealing, long life, excellent regulating characteristics, and multi-function of a valve. Its reliability and other performance indicators have reached a high level. Lug Type Butterfly Valve With the application of chemically resistant synthetic rubber to butter...

  Advantages and disadvantages of   DIN F5 Gate Valve : 1. Small flow resistance. The medium channel inside the valve body is straight through, the medium flows in a straight line, and the flow resistance is small. 2. Less effort when opening and closing. Compared with the shut-off valve, whether it is open or closed, the movement direction of the shutter is perpendicular to the medium flow direction. 3. High height, long opening and closing time. The opening and closing stroke of the shutter is large, and the lifting is performed by a screw. 4. Water hammer phenomenon is not easy to occur. The reason is the long shutdown time. 5. The medium can flow in any direction on both sides, which is easy to install. Gate valve channels are symmetrical on both sides. 6. The structure length (distance between the two end faces of the casing) is small. 7. Simple shape, short structure length, good manufacturing process and wide application range. 8. Compact structure, good valve rigidity,...

  Gate Valve   is an opening and closing gate. The direction of movement of the gate is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled. The gate valve is sealed by the contact between the valve seat and the gate. Usually, the sealing surface will be welded with metal materials to increase wear resistance, such as 1Cr13, STL6, stainless steel and so on. The gate has a rigid gate and an elastic gate. According to different gates, the gate valve is divided into a rigid gate valve and an elastic gate valve. DIN F4 Gate Valve As a  Gate Valve Supplier , share with you how it works. The opening and closing part of the gate valve is a gate. The movement direction of the gate is perpendicular to the fluid direction. The gate valve can only be fully opened and fully closed, and cannot be adjusted and throttled. The gate has two sealing surfaces. The two sealing surfaces of the most commonly...