"Know yourselves and know each other, no battles" The premise of correct selection and use of valves is a comprehensive and specific understanding of the advantages and disadvantages of each valve itself and the physical properties of the medium used...
1. Leakage of valve body and bonnet ► Reason: 1. The casting quality of the cast iron parts is not high, and there are defects such as sand holes, loose structure and slag inclusion on the valve body and valve cover body; 2. Freeze cracking; 3. Poor ...
In general, if it is not tightly closed, first confirm whether the valve is closed in place. If there is still leakage and cannot be sealed after it has been closed in place, then check the sealing surface. Some valve seals are detachable, so take th...
With the development and change of the valve market and the industry within the end of the fifteenth period, the number of valve shares and private enterprises increased, the level of valve production increased, and the valve output increased signifi...
1. Difference between gate valve and globe valve: Both can be turned off, and flow adjustment can be performed in situations where flow linearity is not high. However, due to the structural characteristics of the globe valve, the flow resistance is l...
Sampling valves, as the name suggests, are valves used to obtain media samples for chemical analysis. They are roughly divided into the following types: double opening valves, flange clip valves, and sampling valves with insulation jackets. Use atten...
Plastic pipes are an important branch of many components of chemical building materials. The application fields of plastic pipes are usually water supply, drainage, gas, floor heating, power communication, agricultural, fire protection and other fiel...
PVC pipe—Polyvinyl chloride pipe can be used for water supply and drainage systems. PVC pipe connection is glued for easy installation, but because of its hard texture, PE and PPR pipes are easier to crack and have poor heat resistance. The cost of P...
