grooved butterfly valves are using advanced foreign technology and hebei ji repeatedly design improvements to the Industrial Valves co. , LTD. Carbon steel as the main material, the body USES the thick wall seamless pipe welded together, valve plate for nodular cast iron, reliable, and more durable than cast iron, external appearance more beautiful, and the price is better, and have the promptness of fete, connected to the tube.

grooved butterfly valves are using advanced foreign technology and hebei ji repeatedly design improvements to the valve co. , LTD. Carbon steel as the main material, the body USES the thick wall seamless pipe welded together, valve plate for nodular cast iron, reliable, and more durable than cast iron, external appearance more beautiful, and the price is better, and have the promptness of fete, connected to the tube. Grooved butterfly valve stem and drive a joint repair:

1, the valve stem of the trapezoidal thread repair: zen form ship stem thread repair can be reference to 'boring rod level of repair section. Sample thread sag and stem and repair methods. 2, the top screw stem grave repair; Kuo rod upper thread is used to compress the handwheel and handle, common twisting the bad phenomena are broken, buckle and so on. 3, the valve stem connection partial replacement: the method of replacement. Get rid of the joint, in the stem end seam drilling tapping, configure a tailor-made stem, paste by adhesives, after being solidified, made into shape. Then, tapping and sliced square bar. After repair of the valve stem, such as new stem. Grooved butterfly valve rod connected to the transmission parts of the trapezoidal thread, the ordinary elder sister lines, and the place such as Fang Lin easy bad, can use the following method to repair; Grooved butterfly valve, operating torque for the opening and the direction of valve opening and closing its different values, different horizontal butterfly valves, especially large diameter Industrial Valves, due to water depth, valve shaft, the torque developed by the water head difference also nots allow to ignore. In addition, the valve inlet side bend, form the bias current, torque will be increased. Due to water flow of the opening of the valve is in the middle moment, operators need to be self-locked. Grooved butterfly valve opening and the flow rate, the relationship between the linear basically percentage changes. If is used to control the flow, the flow characteristic and pipe flow resistance have close relationship, such as two install valve pipe diameter, forms, etc. All the same, and the pipe loss coefficient is different, the flow valves will be a big difference. Grooved butterfly valve solenoid valve core sealing surface corrosion. One is the oil-way no dust cover, make some dust into the fuel tank, oil water, containing impurities. Second, because of the butterfly valve with a hole on the tank, turn water lubrication pump packing. On the fuel tank cap into tank leakage. In order to prevent the jia occur again, the tank cover the hole wall board, lubrication and protective cover, replace the oil from the tank. And to make a thorough cleaning the tank before refueling.

keywords: grooved butterfly Industrial Valves stem drive repair services
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