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遇水膨胀止水条( water swelling strip ),具有遇水膨胀性能的遇水膨胀腻子条和遇水膨胀橡胶条的统称。遇水膨胀橡胶是一种橡胶新产品。它既有一般橡胶制品的性能,又能遇水自行膨胀的性能,是一种新型防水材料、止水、防水效果比一般橡胶更为可靠。www.wzdiefa.cnhttp://www.wzzsf.cn...[详细]
Detection of common thread:For the general standard thread, the thread ring gauge or plug gauge is used to measure. In the measurement of external thread, if the thread "over the end" ring is good screw, and the "stop end" ring gauge is not screw into, it indicates that the proce...[详细]
Fault analysis and treatment of electronic expansion valve body:After confirming that the resistance and joint of the coil part are normal, switch on the power supply of the unit to run, and hold the valve body part by hand to feel whether the valve body is moving. The time from fully open to fully...[详细]
Electronic expansion valve nozzle failure analysis and treatment:1. Apply soapy water to all welding parts and nut connection parts of the pipeline to see if there are bubbles. If there are leaks, reweld or adjust.2. Before the pipeline is rewelded, the valve body should be protected according to th...[详细]
Failure analysis and treatment of electronic throttle element of electronic expansion valve:Open the shell of the electronic throttle element, switch on the power supply of the device, and hold the coil of the electronicexpansion valveby hand to check whether there is any action and whet...[详细]
In view of the structural characteristics of thebutterfly valve, the problems of unstable and easy deformation of the large middle sand core and difficult sand cleaning are solved from the aspects of process design, production and fixation of the sand core and the use of zirconium coating. The...[详细]
The connection form of the pipeline - socket connection, ferrule connection, and clamp connection are all well suited. The applications are as follows:1) Socket connection: Water supply, drainage, chemical and urban gas pipelines often use cast iron pipes, concrete pipes, ceramic pipes and plastic p...[详细]
Install:1. Saw off a suitable length of seamless steel pipe to remove burrs from the port. The end face of the pipe should be perpendicular to the axis, and the angle tolerance should not be greater than 0.5°. If thepipe needsto be bent, the length of the straight line from the pipe end...[详细]
When it comes to the ferrule ball valve, its price is relatively low compared to some corrosion-resistant stainless steel valves and Hastelloy valves. But some friends will say, so what other factors will affect the reducing ferrule ball valve? Below I will give you a brief introduction. ...[详细]
The double ferrule ball valve can be said to be a very important part of the instrument measurement pipeline system, and it can also play the role of opening or cutting off the pipeline. And because of its very good sealing performance, it has also become a product that will be used in many i...[详细]

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