The development of regulating valve since the beginning of the 20th century has been 80 years of history regulating valve quickly eliminate heating common five failures

The development of regulating valve since the beginning of the 20th century has been 80 years of history regulating valve quickly eliminate heating common five failures The development of regulating valve since the beginning of the 20th century has been 80 years of history, has produced ten categories of regulating valve products, self-reliant valves and positioners, etc., regulating valve and control valve development process is as follows: 20 s: The original pressure control valve for stability came out. 30 s: To "V" type notched double seat valve and single seat valve for products V-type regulating ball valve came out. 1940s: The emergence of positioner, new varieties of regulating valves are further produced, diaphragm valve, Angle valve, butterfly valve, ball valve and so on. 1950s: Ball valve has been widely used, three-way valve instead of two single-seat valve into the system. 1960s: After the serialized improvement and standardization of the above products in China, a complete series of products was produced in China. Now we are still in the use of a large number of single-seat valve, two-seat valve, Angle valve, three-way valve, diaphragm valve, butterfly valve, ball valve seven products are still the level of products in the 1960s. At this time, foreign began to launch the eighth kind of structure regulating valve - sleeve valve. 70's: Another new structure of the product - eccentric rotary valve came out. During this period, sleeve valves were widely used abroad. In the late 1970s, domestic joint design of sleeve valve, so that China has its own line of sleeve valve products. 1980s: During the opening period, China successfully introduced the petrochemical device and regulating valve technology, so that the sleeve valve, eccentric rotary valve has been popularized and used, especially the sleeve valve, has the potential to replace the single and double seat valve, its use is more and more widespread. At the end of the 80's, the regulator is a major progress in Japan's Cv3000 and fine small regulator, they in structure, the single spring pneumatic film actuator into a multi-spring film actuator, the valve structure is just improved, not changed. Its outstanding feature is that the weight and height of the regulating valve drop by 30%, and the flow coefficient increases by 30%. In addition, our company sells products as well as self-reliant pressure regulating valves, electric single-seat regulating valves and so on, welcome to consult! Excellent product performance, service is our never-ending pursuit, please new and old customers rest assured to buy their favorite products. Adjust the valve to quickly eliminate the five common heating faults 1. Common faults: the heating is not hot overall. Elimination method: Open the inlet and return water valve. 2. Common faults: heating is not hot (valve has been opened). The heating is not half hot. There is a sound of water in the heating system. Elimination method: There may be gas in the heating system, and it needs to be deflated. Method 1: Close the water inlet valve first. Open the exhaust valve, water overflow, close the exhaust valve. Method two: Close the inlet valve by 3/4, then close the return water valve, open the valve to exhaust, and half close the release valve when there is water overflow. Remind you: After operation, if the fault still cannot be removed, inform the maintenance personnel. 3. Common faults: The heating pipe temperature is not enough, the room temperature is too low. Elimination method: If the inlet temperature is low, increase the inlet temperature. Inspection system by property. 4. Common faults: Water inlet and return valves leak inside (near the heating system). Elimination method: Close the inlet and return water valve. Notify the installation team for repairs. 5. Common faults: Water leakage outside the inlet and return valves (near the main road). Elimination method: notify the property half closed system valve; Notify the installation team for repairs.