working principle When the globe valve is opened and closed, it is of a rising valve stem type, that is to say, when the handwheel is turned, the handwheel will rotate and lift together with the valve stem. The gate valve rotates the handwheel to make the valve stem move up and down, and the position of the handwheel itself remains unchanged. Flow rates vary, gate valves require fully open or fully closed, and globe
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1. Pay attention to the flow direction of the medium when installing the valve, and install it strictly in the direction indicated by the flow direction arrow of the valve. 2. The valve can be installed in any position of the pipeline, and the valve of carbon steel or alloy steel can be selected according to the medium and the temperature of the medium. 3. Install it as vertically as possible, with the valve stem u
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1. Open and close without friction. This function completely solves the problem that the traditional valve will affect the sealing due to the friction between the sealing surfaces. 2. Top-loading structure. The valve installed on the pipeline can be directly inspected and maintained online, which can effectively reduce the shutdown of the device and reduce the cost. 3. Single valve seat design. It eliminates the pr
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The working principle of the electric globe valve is to make the valve unblocked or blocked by rotating the valve. The gate valve switch is light, small in size, can be made into a large diameter, reliable sealing, simple structure, convenient maintenance, sealing surface and spherical surface are often in a closed state, not easy to be eroded by media, and are widely used in various industries. If you w
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What is Pneumatic Control Valve/Pneumatic Regulating Valve? COVNA Pneumatic Control Valve includes ZJHP series and ZJHM series. ZJHP/ZJHM series mini pneumatic diaphragm regulaton valves,developed by our company using the advanced technology inside and outside China according to the IEC standard,are a new generation actuators. The product comprises a multiple spring zero adjustable actuator, a low flow res
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1.applicability The fluid in the pipeline must be consistent with the medium calibrated in the selected solenoid valve series. The temperature of the fluid must be less than the calibration temperature of the selected solenoid valve. The maximum working pressure difference should be less than the maximum calibration pressure of the solenoid valve; generally, the solenoid valve works in one direction, so pay atte
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