22/09/19
What are the characteristics and working principle of self-closing valve?
During the operation of the HVAC system, many adverse effects caused by gases such as hydrogen and oxygen released when the water is heated can damage the system and reduce the thermal effect.
During the operation of the HVAC system, many adverse effects caused by gases such as hydrogen and oxygen released when the water is heated can damage the system and reduce the thermal effect. If these gases cannot be discharged in time, there will be many adverse consequences.
Such as corrosion caused by oxidation; formation of air pockets in the radiator; poor and unbalanced hot water circulation, resulting in partial heat loss of some radiators; noise when the pipeline is running with air; eddy current phenomenon of the circulating pump. Therefore, the exhaust gas in the system should be discharged in time, which shows the important role of the self-closing valve.
1. Features:
1) Only exhaust, not drain. The steam-water separation plate adopts a special structural design to ensure that it is not discharged when exhausting.
2) Reliable performance. The material of the self-closing valve is PK-EP. Compared with all known synthetic materials, PK-EP has high performance and reliability. PK-EP can withstand high temperatures much higher than the operating temperature of other self-closing valves. The O-ring adopts the optimized EPDM material to ensure that the O-ring still has good elasticity and operational reliability under high temperature. The internal spring of the self-closing valve spool is made of special materials and imported nickel-plated stainless steel to prevent oxidation, which will affect the movement of the spool. The exhaust mechanism of the self-closing valve is very reliable, and each valve has passed the exhaust test and pressure sealing test before leaving the factory. Each part is cast with high precision, so it can be assembled well.
3) As long as the system has pressure, the self-closing valve will continue to exhaust.
2. Main use:
Self-closing valve is used in: independent heating system; central heating system; floor radiant heating system; solar heating system; heat pump system; heating boiler, etc.
3. The working principle of self-closing valve
When there is air in the system, the gas accumulates on the upper part of the self-closing valve, and the accumulation of bubbles in the body causes the float to drop with the water level, so the exhaust piston is opened; after the gas is discharged, the water level rises, and the float also rises, closing the exhaust piston. If the bonnet on the side of the valve body is tightened, the self-closing valve stops venting, and normally the bonnet should be open.
At present, my country's ordinary mechanical equipment processing has a great demand for the supply of self-closing valves, which can play a very important control role in mechanical processing.
Since it is very important to control the speed of some fluids during the processing of mechanical equipment, through automatic valve control, the flow and pressure during processing can be effectively adjusted and analyzed, which further effectively improves my country's processing technology, thereby enhancing processing stability.
The self-closing valve in the mechanical structure is an important part that can be adjusted by itself. Through the flexible control of fluid in large-scale mechanical equipment such as diversion, throttling, and diversion, the fluid in machining can be well controlled and utilized, thereby improving the overall efficiency of machining. For example, in the modern machining process, resources such as water vapor, natural gas, and liquid metal are an indispensable part of machining.
Other information
Contact us
Fax：0576-87331866
Address: Xiaomaiyu Small and Micro Industrial Park, Yuhuan City, Taizhou City, Zhejiang Province
