What should you pay attention to when using the throttle valve?
2024-01-07 23:06:59
The import and export of the throttle valve, some products can be arbitrarily adjusted, and some products can not be adjusted. Dalan Motor reminds you that in the specific use, the hydraulic system should be connected according to the product instructions.
The import and export of the throttle valve, some products can be arbitrarily adjusted, and some products can not be adjusted. Dalan Motor reminds you that in the specific use, the hydraulic system should be connected according to the product instructions.
The throttle valve should not work at a small opening, otherwise it will easily block and cause the actuator to crawl.
The stroke throttle valve and the one-way stroke throttle valve are fixed on the machined base surface of the stroke stop path, and the installation direction can be determined according to requirements; the stroke and inclination of the stopper or cam should be made according to the product description, and should not be made. is too big.
The throttle opening should be adjusted according to the speed requirement of the actuator. After the adjustment, it should be locked to prevent loosening and change the opening of the throttle.
The stiffness of the throttle valve represents the ability to resist negative changes and maintain flow stability.
When the amount of opening of the throttle valve is constant, the flow rate through the throttle valve changes due to a change in the pressure difference before and after the valve.
The smaller the flow rate changes, the greater the rigidity of the throttle valve, and vice versa.
The same throttle valve has the same pressure difference before and after the valve, and the throttle opening is small, and the rigidity is large.
For the same throttle valve, when the throttle opening is fixed, the pressure difference between the front and the back of the valve is smaller, and the rigidity is lower.
In order to ensure that the throttle valve has sufficient rigidity, the throttle valve can only work under certain minimum pressure difference conditions, but increasing the pressure difference will cause an increase in pressure loss.
Common faults of the throttle valve are as follows:
Phenomenon 1: Flow regulation failure;
Reason 1: Seal failure, spring failure, oil contamination cause the valve core to jam;
Remedy 1: Disassemble or replace the sealing device, disassemble or replace the spring, disassemble and clean the valve or change the oil;
Phenomenon 2: Unstable flow;
Reason 2: The locking device is loose, the throttle is blocked, the internal leakage is too large, the oil temperature is too high, and the load pressure changes too much;
Remedy 2: Lock the adjusting screw, remove the throttle valve, disassemble or replace the valve plug and seal, reduce the oil temperature, and make the load as little or no change as possible;
Phenomenon 3: The stroke throttle valve cannot be depressed or cannot be reset;
Reason 3: The valve plug or the drain port is blocked, causing the spool to react too much and the spring to fail;
Remedy 3: Remove or replace the valve plug, lower the oil temperature and reduce the oil pressure back pressure, check the replacement spring.
----- Editor-in-Chief: Dalan Oil Pump Motor 02-Procurement Consultant
Copyright http: / (Dalan Motor) Reprint, please indicate the source
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
The import and export of the throttle valve, some products can be arbitrarily adjusted, and some products can not be adjusted. Dalan Motor reminds you that in the specific use, the hydraulic system should be connected according to the product instructions.
The throttle valve should not work at a small opening, otherwise it will easily block and cause the actuator to crawl.
The stroke throttle valve and the one-way stroke throttle valve are fixed on the machined base surface of the stroke stop path, and the installation direction can be determined according to requirements; the stroke and inclination of the stopper or cam should be made according to the product description, and should not be made. is too big.
The throttle opening should be adjusted according to the speed requirement of the actuator. After the adjustment, it should be locked to prevent loosening and change the opening of the throttle.
The stiffness of the throttle valve represents the ability to resist negative changes and maintain flow stability.
When the amount of opening of the throttle valve is constant, the flow rate through the throttle valve changes due to a change in the pressure difference before and after the valve.
The smaller the flow rate changes, the greater the rigidity of the throttle valve, and vice versa.
The same throttle valve has the same pressure difference before and after the valve, and the throttle opening is small, and the rigidity is large.
For the same throttle valve, when the throttle opening is fixed, the pressure difference between the front and the back of the valve is smaller, and the rigidity is lower.
In order to ensure that the throttle valve has sufficient rigidity, the throttle valve can only work under certain minimum pressure difference conditions, but increasing the pressure difference will cause an increase in pressure loss.
Common faults of the throttle valve are as follows:
Phenomenon 1: Flow regulation failure;
Reason 1: Seal failure, spring failure, oil contamination cause the valve core to jam;
Remedy 1: Disassemble or replace the sealing device, disassemble or replace the spring, disassemble and clean the valve or change the oil;
Phenomenon 2: Unstable flow;
Reason 2: The locking device is loose, the throttle is blocked, the internal leakage is too large, the oil temperature is too high, and the load pressure changes too much;
Remedy 2: Lock the adjusting screw, remove the throttle valve, disassemble or replace the valve plug and seal, reduce the oil temperature, and make the load as little or no change as possible;
Phenomenon 3: The stroke throttle valve cannot be depressed or cannot be reset;
Reason 3: The valve plug or the drain port is blocked, causing the spool to react too much and the spring to fail;
Remedy 3: Remove or replace the valve plug, lower the oil temperature and reduce the oil pressure back pressure, check the replacement spring.
----- Editor-in-Chief: Dalan Oil Pump Motor 02-Procurement Consultant
Copyright http: / (Dalan Motor) Reprint, please indicate the source
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
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